Analytical results, mineralogical data, and distributions of anomalies for elements and minerals in three mother lode-type gold deposits, Hodson mining district, Calaveras County, California
Analytical results, mineralogical data, and distributions of anomalies for elements and minerals in three mother lode-type gold deposits, Hodson mining…
Public-domain full text preserved in the Mountain Man Mining Library. Original source: pubs.usgs.gov.
U. S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY ANALYTICAL RESULTS, MINERALOGICAL DATA, AND DISTRIBUTIONS OF ANOMALIES FOR ELEMENTS AND MINERALS IN THREE MOTHER LODE-TYPE GOLD DEPOSITS, HODSON MINING DISTRICT, CALAVERAS COUNTY, CALIFORNIA by Maurice A. Chaffee* and Steven J. Sutley* Open-File Report 94-640-A (Paper copy) 94-640-B (Diskette) This report is preliminary and has not been reviewed for conformity with U. S. Geological Survey editorial standards and stratigraphic nomenclature. Any use of trade names is for descriptive purposes only and does not imply endorsement by the USGS. *U. S. Geological Survey, Federal Center, Box 25046, MS 973, Denver, CO 80225
CONTENTS Page INTRODUCTION
Regional Geologic Setting
Geology Of The Hodson District
Geology And Alteration In The Vicinities Of The Cross Sections
Collection And Preparation Of Samples
Analysis Of Samples
Determination Of Threshold Values
Distributions Of Anomalies
Acknowledgments
References Cited
Descriptions Of Appendices 1 And 2
ILLUSTRATIONS Figure Map showing location of study area Generalized geologic map of the Hodson district Geologic map for Section A-A' Geologic map for Section B-B' Geologic map for Section C-C' 6a-c. Distributions of anomalous Ag, Sections A-A', B-B 1 , C-C' 7a-c. Distributions of anomalous Al, Sections A-A', B-B', C-C 8a-c. Distributions of anomalous As, Sections A-A', B-B', C-C 9a-c. Distributions of anomalous Au, Sections A-A', B-B', C-C 1
lOa-c. Distributions of anomalous Ba, Sections A-A', B-B', C-C' lla-c. Distributions of anomalous Be, Sections A-A', B-B', C-C 1
12a-c. Distributions of anomalous Ca, Sections A-A', B-B', C-C 1
13a-c. Distributions of anomalous Cd, Sections A-A 1 , B-B', C-C 1
14a-c. Distributions of anomalous Ce, Sections A-A', B-B', C-C' 15a-c. Distributions of anomalous Co, Sections A-A', B-B', C-C' 16a-c. Distributions of anomalous Cr, Sections A-A', B-B', C-C' 17a-c. Distributions of anomalous Cu, Sections A-A', B-B', C-C' 18a-c. Distributions of anomalous Fe, Sections A-A', B-B', C-C 1
19a-c. Distributions of anomalous Ga, Sections A-A', B-B', C-C 20a-c. Distributions of anomalous Hg, Sections A-A', B-B', C-C'
ILLUSTRATIONS (continued) Page Figure 21a-c. Distributions of anomalous K, Sections A-A 1 , B-B 1 , C-C 1
22a-c. Distributions of anomalous La, Sections A-A 1 , B-B 1 , C-C 1
23a-c. Distributions of anomalous Li, Sections A-A 1 , B-B 1 , C-C 1
24a-c. Distributions of anomalous LOI, Sections A-A 1 , B-B 1 , C-C 1
25a-c. Distributions of anomalous Mg, Sections A-A', B-B , C-C' 26a-c. Distributions of anomalous Mn, Sections A-A 1 , B-B 1 , C-C 1
27a-c. Distributions of anomalous Mo, Sections A-A', B-B', C-C' 28a-c. Distributions of anomalous Na, Sections A-A 1 , B-B 1 , C-C 1
29a-c. Distributions of anomalous Nb, Sections A-A 1 , B-B 1 , C-C 1
30a-c. Distributions of anomalous Nd, Sections A-A', B-B', C-C' 31a-c. Distributions of anomalous Ni, Sections A-A 1 , B-B 1 , C-C 1
32a-c. Distributions of anomalous P, Sections A-A 1 , B-B 1 , C-C 1
33a-c. Distributions of anomalous Pb, Sections A-A 1 , B-B 1 , C-C 1
34a-c. Distributions of anomalous S, Sections A-A 1 , B-B 1 , C-C 1
35a-c. Distributions of anomalous Sb, Sections A-A', B-B', C-C' 36a-c. Distributions of anomalous Sc, Sections A-A 1 , B-B 1 , C-C 1
37a-c. Distributions of anomalous SiO2 , Sections A-A', B-B', C-C' 38a-c. Distributions of anomalous Sr, Sections A-A 1 , B-B 1 , C-C 1
39a-c. Distributions of anomalous Te, Sections A-A 1 , B-B 1 , C-C 1
40a-c. Distributions of anomalous Th, Sections A-A 1 , B-B 1 , C-C 1
41a-c. Distributions of anomalous Ti, Sections A-A 1 , B-B 1 , C-C 1
42a-c. Distributions of anomalous Tl, Sections A-A 1 , B-B 1 , C-C 1
43a-c. Distributions of anomalous V, Sections A-A 1 , B-B 1 , C-C 1
44a-c. Distributions of anomalous W, Sections A-A 1 , B-B 1 , C-C 1
45a-c. Distributions of anomalous Y, Sections A-A 1 , B-B 1 , C-C 1
ILLUSTRATIONS (continued) Page Figure 46a-c. Distributions of anomalous Yb, Sections A-A 1 , B-B 1 , C-C 1
47a-c. Distributions of anomalous Zn, Sections A-A 1 , B-B 1 , C-C 1
48a-c. Distributions of anomalous mica, Sections A-A 1 , B-B 1 , C-C 1
49a-c. Distributions of anomalous kaolinite, Sections A-A', B-B', C-C' 50a-c. Distributions of anomalous chlorite, Sections A-A 1 , B-B 1 , C-C 1
5la-c. Distributions of anomalous quartz, Sections A-A 1 , B-B 1 , C-C 1 52a-c. Distributions of anomalous orthoclase, Sections A-A 1 , B-B 1 , C-C 1 53a-c. Distributions of anomalous plagioclase, Sections A-A 1 , B-B 1 , C-C 1
54a-c. Distributions of anomalous calcite, Sections A-A 1 , B-B 1 , C-C 1
55a-c. Distributions of anomalous ankerite, Sections A-A', B-B , C-C' 56a-c. Distributions of anomalous magnesite, Sections A-A 1 , B-B 1 , C-C 1
57a-c. Distributions of anomalous pyrite, Sections A-A', B-B', C-C' TABLES Table 1. Statistical summary for analyses in 136 samples of core and cuttings from the Copper Hill Volcanics unit Statistical summary for analyses in 121 samples of core and cuttings from the Salt Spring Slate unit Statistical summary for analyses in 43 samples of core and cuttings from the tuff member of the Salt Spring Slate unit d-Spacings and diffraction peaks used for semiquantitative mineralogy Statistical summary for minerals in 172 samples of core and cuttings from 3 rock units APPENDICES Appendix 1. Chemical data for samples of drill core or cuttings 2. Mineralogical data for samples of drill core or cuttings in
INTRODUCTION Although many geologic environments have been studied and explored for gold deposits in the last few decades, the classic Mother Lode environment in California was largely ignored until the 1980's. For a variety of reasons, including underground mining economics, metallurgical problems with ore treatment, lack of accessible land, and probably other factors, little attention was given to the gold resource potential of the Mother Lode region, and, consequently, modern scientific studies were not undertaken in this region. In recent years, however, the possibility of using surface mining methods, the adoption of newer techniques for recovering gold from the complex ores in the Mother Lode region, and other considerations have renewed interest in this environment. Detailed descriptions that included information on the mineralogy and chemistry of various Mother Lode deposits were published many years ago when the underground mines of the region were still active and accessible (Knopf, 1929; Lindgren, 1896). The last of the underground mines was closed in 1942 and, except in the extreme northern part of the region, none has operated in recent years. As a result, little was written about the geological aspects of Mother Lode deposits between the 1940's and the 1980's, when exploration and mining in the region was renewed. Chemical and mineralogical data have been published for many gold deposits, some of which are probably Mother Lode analogues (see, for example, Boyle, 1979, and references therein). In spite of the renewed interest in the California deposits, however, only a few articles describing the abundances and particularly the distributions of suites of elements and minerals associated with Mother Lode-type deposits occurring in the United States have been published (see, for example, Chaffee and Hill, 1987; Chaffee and Kuhl, 1991; Coveney, 1981; Goldfarb, 1989; King, 1986; Kuhl and Garmoe, 1989; Landefeld and Silberman, 1987; Lechner and Kuhl, 1990; Nash, 1988; Silberman and Danielson, 1991). To provide new information regarding the geochemistry of a typical Mother Lode-type deposit, we conducted a study in the Hodson mining district, which is in Calaveras County, California, in the westernmost foothills of the Sierra Nevada, several kilometers northwest of the settlement of Copperopolis and about 17 km west of the town of Angels Camp (Fig. 1). This district is in the West Gold Belt, which lies about 12 to 16 km west of, and generally parallel to, the better known Mother Lode Gold Belt in central California. The Hodson district produced more than $6 million worth of gold between the 1880's and 1940's from underground mines (Clark, 1970). The two principal mines were the Royal, the largest and most productive mine in the West Belt, and the Mountain King (Clark and Lydon, 1962). Mining from three open pits began in 1989 (Lechner and Kuhl, 1990) and continued until 1994.
121' Angels A V Study
area
Vein system 20 MILES 20 KILOMETERS Figure 1. Location of the study area
This report briefly describes (1) the regional geologic setting and general geology of the Hodson mining district and (2) the geology for three cross sections, each transecting a gold deposit in the district. In addition, the report provides details on the collection and analysis of 300 samples of drill core or cuttings, a tabulation of chemical and mineralogical data for 44 elements and 10 minerals, summary statistical data for these variables, and plots of anomalies for 42 chemical and 10 mineral variables on the three geologic cross sections. This report consists of two parts. Part A is this printed report. Part B is an electronic version on a diskette that includes this text in ASCII format as well as the data in Appendices 1 and 2 in a binary format. REGIONAL GEOLOGIC SETTING The Hodson district is located in the West Gold Belt, a part of the Foothills Metamorphic Belt that lies along the west side of the central Sierra Nevada in California (Fig. 1). This belt is thought to comprise a Mesozoic submarine volcanic arc and adjacent back arc basin that were accreted onto the western margin of North America (Landefeld, 1990). Rocks present in the areas of the main Mother Lode Gold Belt (Melones Fault Zone) and the West Gold Belt include (1) mafic and ultramafic lava flows and breccias and (2) sedimentary sequences that were largely derived from these rocks and vary in grain size from conglomerates to argillites. All of these rocks were regionally metamorphosed to greenschist facies prior to the time of gold mineralization (Landefeld, 1990; Landefeld and Silberman, 1987). The only significant difference between the rocks in the Mother Lode Belt and the West Belt is in the composition of the metamorphosed volcaniclastic units. Those in the West Belt are more felsic to intermediate in composition, suggesting that these rocks were probably derived from the mature, calc-alkaline parts of the same volcanic arc that is the source of most of the rocks found in the rest of the Foothills Metamorphic Belt (Landefeld and Snow, 1990). Major faulting in Nevadan time created the Melones and Bear Mountain Fault Zones. Splays from the latter, especially the Hodson fault, structurally control the gold mineralization in the Hodson district. The gold deposits, described below, exhibit the same gross characteristics as those of the Melones Fault Zone at this latitude. GEOLOGY OF THE HODSON DISTRICT Figure 2 shows the geology of the Hodson area as illustrated by Lechner and Kuhl (1990), as well as the locations of three cross sections along which samples of drill cuttings or core were collected for this study. Two major rock units are present. The first is the Salt Spring Slate (Js on Fig. 2), which is of Late Jurassic age (Clark, 1964). In the study area this unit is predominantly a sequence of thin-bedded carbonaceous shales that have been metamorphosed to slates and phyllites.
12041' Skyrocket North Pi area' EXPLANATION Diorite Peridotite Serpentinite Copper Hill Volcanics Jst - Gold Knoll Pit area Salt Spring Slate Jst- tuffaceous member Contact, inferred Fault, approximately located Cross-section 600 METERS 2000 FEET Figure 2. Generalized geologic map of the Hodson district, Calaveras County, California. Modified from Lechner and Kuhl (1990)
Beds of pebble conglomerate ar.e found locally. In the southern part of the study area, a sequence of thinly interbedded tuffaceous wackes and carbonaceous phyllites has been mapped locally as a part of this unit. This latter sequence has been informally named the tuffaceous member of the Salt Spring Slate (Jst on Fig. 2) (Kuhl and Garmoe, 1989). The other major unit in the study area is the Copper Hill Volcanics (Jch on Fig. 2), which is also of Late Jurassic age (Clark, 1964). This unit consists of volcanic flows, flow breccias, and tuffs that range in composition from andesitic basalt to basalt and have been metamorphosed to produce massive to schistose sequences (Lechner and Kuhl, 1990). Regional metamorphism to greenschist facies has produced abundant chlorite that gives a green color (and thus the term "greenstone") to this unit. Other small units crop out locally (Fig. 2). These consist of ultramafic rocks that include serpentinite (Jsp) and peridotite (Jp) of probable Late Jurassic age (Clark, 1964) and a small body of diorite (KJd), which by inference with other similar bodies is of probable Late Jurassic to Middle Cretaceous age (Clark, 1964). Major NNW- to NW-trending, northeast-dipping, low-angle faults trend parallel to the regional strike of the rock units. The Hodson fault and its splays (Fig. 2), a part of the major Bear Mountain Fault Zone (Clark, 1964), are the major structural controls of gold ore in the district. Common hydrothermal alteration minerals include quartz, pyrite, sericite, ankerite, and calcite, which are widespread, and albite and mariposite, which occur locally (Kuhl and Garmoe, 1989; Lechner and Kuhl, 1990). Gold occurs locally in the free state but mainly as inclusions or microveinlets in pyrite. Minor amounts of other sulfide minerals (principally chalcopyrite, arsenopyrite, sphalerite, galena, and tetrahedrite) have been identified in the district (Kuhl and Garmoe, 1989; Lechner and Kuhl, 1990). GEOLOGY AND ALTERATION IN THE VICINITIES OF THE CROSS SECTIONS Three sections through the district each crossing one of the three ore deposits at a roughly perpendicular orientation to the Hodson fault were selected for study. These sections are located on Fig. 2. Each is viewed facing northwest. The locations of the drill holes that were sampled for each section are shown for reference (Figs. 3 to 5). All holes were collared within 20 m of the plane of the respective sections. The areas of significant weathering shown on each section were defined on the basis of the amount of visible secondary iron oxides in the samples collected for analysis. These areas are labelled as the "oxide zone" on each section. The geologic descriptions that follow are largely those of Kuhl and Garmoe (1989) and Lechner and Kuhl (1990), supplemented by our own observations. The northernmost of the three deposits is in the North Pit and is shown on Section A-A 1 (Fig. 3). The geology of the overall area of the pit is structurally complex (Lechner and
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Kuhl, 1990) and has been simplified for the cross section. In general, in the area of the section, the Hodson fault separates the Copper Hill Volcanics unit in the hanging wall from the Salt Spring Slate unit in the footwall. Other faults farther east form contacts on either side of a block of Salt Spring Slate. The Copper Hill Volcanics is the dominant ore host in this area. Hydrothermal alteration, which is more extensive here in the Copper Hill Volcanics, has visibly bleached this unit as a result of the destruction of chlorite and other mafic minerals and has also locally bleached the Salt Spring Slate as a result of the leaching of carbon and the destruction of mafic minerals. Oxidation related to weathering extends as deep as 24 m (80 ft) in the vicinity of the section (Fig. 3). Common alteration minerals identified either by visual inspection or X-ray diffraction analysis include quartz, white mica, plagioclase feldspar, kaolinite, pyrite, calcite, other mixed-element carbon- ates (all here called ankerite), magnesite, talc or pyrophyllite, smectites, and locally, mariposite (Cr-rich white mica). The middle deposit is in the Skyrocket Pit and is shown on Section B-B 1 (Fig. 4). In this area, the Hodson fault also sepa- rates the overlying Copper Hill Volcanics from the Salt Spring Slate. However, here the Salt Spring Slate is the dominant ore host. Alteration and ore minerals are similar to those described for these same two units in the North Pit area. Oxidation related to weathering is relatively shallow here and occurs to depths of only about 8 m (27 ft) in the vicinity of the section (Fig. 4). The southernmost deposit, in the Gold Knoll Pit, is shown on Section C-C' (Fig. 5). In the area of the section, the Hodson fault separates the hanging wall block containing the Copper Hill Volcanics (Jch) and the tuffaceous member of the Salt Spring Slate (Jst) from the footwall block containing the Salt Spring Slate (Js). The dominant ore host-rocks in the Gold Knoll Pit area are the Copper Hill Volcanics and the tuffaceous member of the Salt Spring Slate. Alteration assemblages in the Copper Hill Volcanics and the Salt Spring Slate are similar to those described for the other two areas. Alteration in the tuffaceous member is similar to that of the rest of the Salt Spring Slate. The effects of weathering extend to depths of as much as 22 m (73 ft) in the vicinity of the section (Fig. 5). COLLECTION AND PREPARATION OF SAMPLES Three hundred samples of core or cuttings from 17 drill holes were collected and analyzed for this study. The samples were collected from approximately 1.5- to 3-m (5- to 10-ft) runs along the length of each hole. Each sample was composited from material most closely representing typical rock lithology, alteration, and mineralization in a given run. In some cases no sample was collected for a desired interval because no suitable material was available. The samples were crushed, if necessary, in a jaw crusher with steel plates. All samples were ground in a vertical pulverizer
with ceramic plates to produce material passing a 0.15-mm (100- mesh) sieve. The samples were'submitted in random sequence to the USGS analytical laboratories in Denver. ANALYSIS OF SAMPLES The samples were analyzed for 44 variables. They were analyzed for 31 elements (Al, As, Ba, Be, Ca, Ce, Co, Cr, Cu, Eu, Fe, Ga, K, La, Li, Mg, Mn, Na, Nb, Nd, Ni, P, Pb, Sc, Sr, Th, Ti, V, Y, Yb, and Zn) by a total digestion, inductively coupled plasma-atomic emission specrometry (ICP-AES) method (Briggs, 1990), for 5 elements (Ag, Bi, Cd, Mo, and Sb) by a partial- digestion ICP method (Motooka, 1990), for Au, Te, and Tl by atomic-absorption spectrophotometry (O'Leary and Chao, 1990), for Hg and W by atomic-absorption spectrophotometry (O'Leary and others, 1990; O'Leary and Welsch, 1990), for total sulfur by a combustion technique (Curry, 1990), and for SiO2 by X-ray fluorescence (Taggart and others, 1990). In addition, the weight loss on ignition at 925°C (LOI) was determined by a gravimetric method (Taggart and others, 1990). This loss largely reflects the loss of CO2 resulting from the destruction of carbonate minerals and, to a much lesser extent, the loss of H2O and other relatively volatile species. Unless otherwise stated for a given standard analytical procedure, the analysts included a set with one sample duplicate, one analysis method blank, and two reference samples in each job of 40 or less samples. The arithmetic mean and standard deviation of reference materials and duplicate samples were calculated in order to estimate accuracy and precision for each analytical method. A given analytical method was generally considered sufficiently accurate if the absolute value of the laboratory mean minus the best defined reported value was less than or equal to four times the estimated within-laboratory standard deviation. Generally, for the major elements (those commonly occurring in concentrations greater than 1 percent), a relative standard deviation (RSD) less than 1 to 2 percent was considered adequate for precision. For minor elements (those commonly occurring in concentrations of 0.1 to 1.0 percent) a RSD less than 5 percent was considered adequate, and for trace elements (concentrations generally less than 0.1 percent), a RSD of less than 15 percent was considered adequate. The quality assurance manual for the USGS Branch of Geochemistry (Arbogast, 1990) contains estimates of typical performance capabilities for different sample matrices and analyte concentrations, as well as specific data concerning the accuracy and precision of the techniques described above. The analytical results are tabulated in appendix 1. Data on these analyses are summarized by lithologies in tables 1 to 3. Two elements (Bi and Eu) were not found in many samples in concentrations above their respective lower limits of determination (0.60 ppm for Bi and 2 ppm for Eu), and thus these elements were not further studied.
Table 1. Statistical summary for 139 samples of core and cuttings from the Copper Hill Volcanics (Jch) unit, Hodson mining district, California [All values shown in parts per million unless "%" shown. N=not detected at lower limit of determination shown in parentheses. L=Jdetected but in a concentration less than the lower limit of determination shown in parentheses. Leaders ( )=value not significant] Range of values Percent Geometric Percentiles Variable Ag As Au Ba Be Bi Ca(%) Cd Ce Co Cr Cu Eu Fe(%) Ga Hg La LOI (%) Mg(%) Mn Mo Na (%) Nb Nd Ni Pb Sb Sc Si02 (%) Sr Te Th Tl W Y Yb Zn Minimum Maximum unqualified mean N(0.045) L(10) N(0.002) L(l) N(0.60) N(0.030) 1X4) 1X2) 1X4) N(0.02) L(0.05) 1X2) 1X2) N(0.09) 1X4) 1X4) L(0.005) L(4) L(0.05) N(0.60) N(0.005) 1X4) L(0.005) N(0.05) N(0.5) 1X2) L(l) 2.0,
N(0.045) N(0.045) N(0.045) N(0.045) N(0.045) L(10) L(10) L(10) L(10) L(10) N(0.002) L(0.002) L(0.002) L(0.002) L(0.002) L(l) L(l) L(l) L(l) L(l) N(0.60) N(0.60) N(0.60) N(0.60) N(0.60) N(0.030) N(0.030) 1X4) L(4) L(4) L(4) L(4) 1X2) 1X2) 1X2) 1X2) 1X2) L(4) N(0.02) N(0.02) N(0.02) N(0.02) N(0.02) L(0.05) L(0.05) L(2) L(2) L(2) N(0.09) N(0.09) N(0.09) 1X4) L(4) L(4) L(4) L(4) L(4) L(4) L(4) L(0.005) L(0.005) L(0.005) 1X4) L(4) L(4) L(4) L(4) L(0.05) L(0.05) L(0.05) L(0.05) L(0.05) N(0.60) N(0.60) N(0.60) N(0.60) N(0.60) N(0.005) L(0.005) L(0.005) L(0.005) L(0.005) L(4) L(4) L(4) L(4) L(4) L(0.005) N(0.05) N(0.05) N(0.05) N(0.05) L(0.05) L(0.5) L(2) L(l) L(l) L(l) L(l) L(l)
Table 1. Continued [All values shown in parts per million unless "%" shown. N=not detected at lower limit of determination shown in parentheses. L=detected but in a concentration less than the lower limit of determination shown in parentheses] Percentiles Variable Ag Al (%) As Au Ba Be Bi Ca(%) Cd Ce Co Cr Cu Eu Fe(%) Ga Hg La LOI (%) Mg (%) Mn Mo Na (%) Nb Nd Ni Pb Sb Sc SiO2 (%) Sr Te Th Ti (%) Tl W Y Yb Zn N(0.045) L(10) L(l) N(0.60) L(4) L(0.05) N(0.60) L(0.005) L(4) L(0.05) L(l) L(l) N(0.60) L(4) L(2) L(4) L(0.05) N(0.60) L(4) L(l) N(0.60) L(4) L(4) L(0.05) L(4) N(0.60) L(2) L(4) L(4) N(0.60) 1X2) L(4) N(0.60) L(4) N(0.60) L(4) N(0.60) L(4) N(0.60) L(4) 1X4)
Table 2.-Statistical summary for 118 samples of core and cuttings from the Salt Spring Slate (Js), Hodson mining district, California [All values shown in parts per million unless "%" shown. N=not detected at lower limit of determination shown in parentheses. L=detected but in a concentration less than the lower limit of determination shown in parentheses. =value not significant] Range of values Percent Geometric Percentiles Variable Ag Al (%) As Au Ba Be Bi Ca(%) Cd Ce Co Cr Cu Eu Fe(%) Ga Hg La LOT (%) Mg (%) Mn Mo Na (%) Nb Nd Ni Pb Sb Sc SiO2 (%) Sr Te Th Ti (%) Tl W Y Yb Zn Minimum Maximum unqualified mean L(10) N(0.002) L(l) N(0.60) N(0.030) L(4) L(2) L(4) L(0.05) L(2) L(2) L(4) L(4) L(0.05) N(0.60) L(2) L(0.005) L(4) N(0.05) L(0.5) L(2) L(l) L(2) 5.3,
6.81*
61.2* N(0.002) L(l) N(0.60) L(2) L(4) L(0.05) L(4) N(0.05) L(l) N(0.002) L(l) N(0.60) L(4) L(0.05) L(4) L(l) N(0.002) L(l) N(0.60) L(2) L(4) L(0.05) L(4) L(l) N(0.002) N(0.60) L(4) L(4) L(l) N(0.002) N(0.60) L(2) L(4) L(4) L(l) Mean value based on 117 samples
Table 2.-Continued [All values shown in parts per million unless "%" shown. N=not detected at lower limit of determination shown in parentheses. L=detected but in a concentration less than the lower limit of determination shown in parentheses]
Percentiles Variable Ag Al (%) As Au Ba Be Bi Ca(%) Cd Ce Co Cr Cu Eu Fe(%) Ga Hg La LOI (%) Mg (%) Mn Mo Na(%) Nb Nd Ni Pb Sb Sc Si02 (%) Sr Te Th Ti (%) Tl W Y Yb Zn N(0.002) N(0.60) 1X2) 1X4) L(4) L(0.002) N(0.60) L(2) L(4) L(4) N(0.60) L(2) 1X4) N(0.60) 1X2) 1X4) N(0.60) 1X2) 1X4) N(0.60) 1X2) N(0.60) 1X2) N(0.60) 1X2) N(0.60) 1X2) N(0.60) 1X2)
Table 3.-Statistical summary for 43 samples of core and cuttings from the tuff member of the Salt Spring Slate (1st), Hodson mining district, California [All values shown in parts per million unless "%" shown. N=not detected at lower limit of determination shown in parentheses. L=?detected but in a concentration less than the lower limit of determination shown in parentheses. value not significant] Range of values Percent Geometric Percentiles Variable Ag Al (%) As Au Ba Be Bi Ca(%) Cd Ce Co Cr Cu Eu Fe(%) Ga Hg La LOI (%) Mg(%) Mn Mo Na(%) Nb Nd Ni Pb Sb Sc SiO2 (%) Sr Te Th Ti (%) Tl w Y Yb Zn Minimum Maximum unqualified mean N(0.002) L(l) N(0.60) L(4) L(2) L(4) N(0.02) L(2) L(2) L(4) L(4) L(0.005) L(0.05) N(0.60) L(0.005) L(4) L(l) N(0.60) L(2) s.a L(4)
N(0.002) L(l) N(0.60) L(4) L(2) N(0.02) L(2) L(4) L(4) L(0.005) L(0.05) N(0.60) L(0.005) L(4) L(l) L(l) N(0.60) L(4) L(2) N(0.02) L(2) L(4) L(4) L(0.005) L(0.05) L(0.005) L(4) L(l) L(l) N(0.60) L(4) L(2) L(2) L(4) L(0.05) L(0.005) L(4) L(l) L(l) N(0.60) L(4) L(2) L(2) L(4) L(0.05) L(4) L(l) L(l) N(0.60) L(4) L(2) L(2) L(4) L(0.05) L(4) L(l)
Table 3.-Continued [All values shown in parts per million unless "%" shown. N=not detected at lower limit of determination shown in parentheses. L=detected but in a concentration less than the lower limit of determination shown in parentheses] Percentiles Variable Ag Al (%) As Au Ba Be Bi Ca(%) Cd Ce Co Cr Cu Eu Fe(%) Ga Hg La LOI (%) Mg(%) Mn Mo Na(%) Nb Nd Ni Pb Sb Sc Si02 (%) Sr Te Th Ti (%) Tl W Y Yb Zn L(l) N(0.60) 1X4) 1X2) L(2) L(4) L(0.05) L(4) L(l) L(l) N(0.60) L(4) 1X2) L(4) 1X4) L(l) L(l) N(0.60) L(2) 1X4) L(4) L(l) N(0.60) L(2) L(4) L(4) L(l) N(0.60) L(2) 1X4) L(4) L(l) N(0.60) 1X2) 1X4) L(4) L(l) N(0.60) 1X2) L(4) L(4) L(l) N(0.60) 1X2) L(4) N(0.60) 1X2) 1X4) N(0.60) 1X2) 1X4)
Of the 300 samples, 172 were prepared and analyzed for their gross mineralogy by X-ray diffraction. The samples were first ground in an agate mortar to about minus 200 mesh (0.074 mm). Approximately equal volumes of the resulting powders were mounted on glass slides and analyzed by X-ray diffraction using a Philips XRG-3000 generator configured with a copper lamp and nickel filter and run at 40 Kv and 26 Ma. The samples were scanned over a range of 4° to 60° 26 at a speed of 2° 29/min, and the responses were plotted on diffractograms. The relative abundances of 10 minerals in each sample were estimated on the resulting diffractograms using the d-spacing peak for the best line for which no interference from other mineral phases was present (Table 4) and measuring the height above background for that peak. The resulting data are tabulated in appendix 2 and summarized in table 5. For the configuration used, the lowest concentrations of a given mineral that could be detected was about 1 percent by volume. DETERMINATION OF THRESHOLD VALUES Chemical analyses for all 300 samples were used to determine threshold values; however, analyses for only 279 of the original 300 samples were used to construct the anomalies shown on the accompanying figures. The remaining 21 samples were from two drill holes that were well off the cross sections. As a consequence, the data for these two drill holes have not been plotted on the sections. The rocks included in each of the three lithologic units vary in composition both laterally and vertically; consequently, the typical chemistry for each unit is not easily determined. Also, many of the samples collected for this study are rocks that have been chemically and mineralogically altered as a result of burial, regional metamorphism, hydrothermal alteration, and(or) weathering. Thus, a realistic background range for each element cannot be accurately determined. No sampling was done outside of the area of figure 2 because of the difficulty in finding outcrops that were geologically equivalent to those sampled in the drill holes. Background ranges for the two main lithologies (Jch and Js) can be approximated from the data in tables 1 and 2. For elements that were enriched as a result of mineralization (positive geochemical anomalies), the background range for equivalent unaltered rocks is best approximated by the values between the lowest concentration reported and the 25th percentile (tables 1 and 2). For elements that were depleted as a result of mineralization or weathering (negative anomalies), the values between the 75th percentile and the highest concentration reported most closely approximate the background ranges. Most of the tuff member of the Salt Spring Slate (Jst) has been altered so that background ranges for elements in samples collected from this unit are not known.
Table 4. d-Spacings and diffraction peaks used for semiquantitative mineralogy Diffraction d-Spacing (A) peak (hkl) White mica Kaolinite Chlorite Quartz Orthoclase Plagioclase Calcite Ankerite Magnesite Pyrite
Table 5. Statistical summary for minerals determined by X-ray diffraction in samples of core and cuttings from three major stratigraphic units, Hodson mining district, California [All values shown are based on peak heights on X-ray diffractograms. N=not detected at lower limit of determination shown in parentheses. Leaders ( )=value not significant] Copper Hill Volcanics (Jch) (83 samples) Variable White mica Kaolinite Chlorite Quartz Orthoclase Plagioclase Calcite Ankerite Magnesite Pyrite Variable White mica Kaolinite Chlorite Quartz Orthoclase Plagioclase Calcite Ankerite Magnesite Pyrite Variable White mica Kaolinite Chlorite Quartz Orthoclase Plagioclase Calcite Ankerite Magnesite Pyrite Range Minimum N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) Range Minimum N(l) N(l) N(l) N(l) N(l) N(l) N(l) of values Maximum Salt of values Maximum Percent unqualified Geometric mean ] ] j ] ] ] ] ] Spring Slate (Js) (64 Percent unqualified Geometric mean NT(1) NT(1) N(l) N(D N(D N(l) N(D N(D samples) N(l) N(l) N(l) N(l) N(l) N(l) N(l) Tuff member of Salt Spring Slate (1st) (25 Range Minimum N(l) N(l) N(l) N(l) N(l) N(l) N(l) of values Maximum Percent unqualified Geometric mean N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) Percentiles N(l) N(l) N(l) Percentiles N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) samples) N(l) N(l) N(l) N(l) N(l) Percentiles N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l) N(l)
Table 5. Continued [All values are based on peak heights on X-ray diffractograms. N=not detected at lower limit of determination shown in parentheses] Variable White mica Kaolinite Chlorite Quartz Orthoclse Plagioclase Calcite Ankerite Magnesite Pyrite Copper Hill Volcanics (Jch) Percentiles N(l) Salt Spring Slate (Js) Percentiles Variable White mica Kaolinite Chlorite Quartz Orthoclse Plagioclase Calcite Ankerite Magnesite Pyrite Variable White mica Kaolinite Chlorite Quartz Orthoclse Plagioclase Calcite Ankerite Magnesite Pyrite Tuff member of Salt Spring Slate (1st) Percentiles
The threshold values for the chemical data were determined by first studying the dispersion patterns for gold and other closely associated elements, including silver, arsenic, sulfur, antimony, thallium, and tungsten. This initial examination revealed that approximately 50 percent of the samples in the major (Jch and Js) units and 80 percent of the samples in the tuff unit (Jst) were anomalous for these elements as a result of gold mineralization. Threshold values for all other elements represented by positive anomalies were therefore contoured using values for the 50th or 20th percentiles, respectively (tables 1 to 3). Conversely, elements represented by negative anomalies were contoured using values for the 50th or 80th percentiles, respectively. Where geologically warranted, or where the range of reported values for a given element was limited, minor adjustments were made for the threshold value for a few elements. Our evaluation of the plots revealed that slight variations in the threshold value do not materially affect the overall anomaly patterns. All values have been rounded to two or less significant digits for plotting. The threshold values for the mineral anomalies plotted for this report were determined using these same criteria. In several cases, the thresholds were modified slightly because only a limited range of values was present. The threshold values used for contouring each anomaly are shown on each cross section. DISTRIBUTIONS OF ANOMALIES The cross sections that follow (figs. 6-57) illustrate the distributions of anomalies for 42 chemical and 10 mineral variables. There is no unique way to draw the contours for most of the variables. Emphasis has been given to showing the most significant areas of enrichment or depletion (or both) for each variable. Where considered geologically reasonable, the boundaries of anomalies have been extended to geologic contacts or faults. Note that in some cases the anomalies are shown to extend beyond the depths of drilling or into areas where analytical information is inadequate. In such cases a question mark is shown and the extent of these anomalies should be considered speculative. ACKNOWLEDGMENTS We thank P.H. Briggs, P.L. Hageman, R.H. Hill, J.M. Motooka, T.A. Roemer, B.H. Roushey, Will Sadler, D.F. Siems, and J.E. Taggart for the analytical determinations. We are indebted to FMC Gold Company (formerly Meridian Gold Company) for letting us collect samples of drill core and cuttings from the three deposits. T.O. Kuhl and Mike Lechner, formerly of that company, were particularly helpful in showing one of us (MAC) around the property and in sorting out some of the geological complexities of the deposits.
REFERENCES CITED Arbogast, B.F., 1990, Quality assurance manual for the Branch of Geochemistry, U.S. Geological Survey: U.S. Geological Survey Open-File Report 90-688, 183 p. Boyle, R. W., 1979, The geochemistry of gold and its deposits (together with a chapter on geochemical prospecting for the element): Geological Survey of Canada Bulletin 280, 584 p. Briggs, P.H., 1990, Elemental analysis of geologic materials by inductively coupled plasma-atomic emission spectrometry, in Arbogast, B.F., Quality assurance manual for the Branch of Geochemistry, U.S. Geological Survey: U.S. Geological Survey Open-File Report 90-668, 184 p. Chaffee, M.A., and Hill, R.H., 1989, Soil geochemistry of the Mother Lode-type gold deposits in the Hodson mining district, central California, U.S.A. (extended abst.): Journal of Geochemical Exploration, v. 32, nos. 1-3, p. 53-55. Chaffee, M.A., and Kuhl, T.O., 1991, Primary and secondary dispersion patterns associated with Mother Lode-type gold mineralization, Hodson district, Calaveras County, California (abst.), in Abstracts with Program, 15th International Geochemical Exploration Symposium, Reno, April 1991: Association of Exploration Geochemists, p. 43. Clark, L.D., 1964, Stratigraphy and structure of part of the western Sierra Nevada metamorphic belt, California: U.S. Geological Survey Professional Paper 410, 70 p. Clark, W.B., 1970, Gold districts of California: California Division of Mines and Geology Bulletin 193, 186 p. Clark, W.B., and Lydon, P.A., 1962, Mines and mineral resources of Calaveras County, California: California Division of Mines and Geology County .Report 2, 217 p. Coveney, R.M., Jr., 1981, Gold quartz veins and auriferous granite at the Oriental mine, Alleghany district, California: Economic Geology, v. 76, no. 8, p. 2176-2199. Curry, K.J., 1990, Determination of total sulfur in geologic materials by combustion, in Arbogast, B.F., Quality assurance manual for the Branch of Geochemistry, U.S. Geological Survey: U.S. Geological Survey Open-File Report 90-668, 184 p. Goldfarb, R.J., 1989, Genesis of lode gold deposits of the southern Alaskan Cordillera: Univ. Colorado, unpub. Ph.D. dissertation, 437 p. King, D.A., 1986, Controls of gold mineralization in the southern portion of the Hodson mining district, west Mother Lode gold belt, California: Univ. Montana, unpub. M.Sc. thesis, 60 p. Knopf, Adolph, 1929, The Mother Lode system of California: U.S. Geological Survey Professional Paper 157, 88 p. Kuhl, T.O., and Garmoe, W.J., 1989, Geology of the Royal-Mountain King mine, Hodson district, Calaveras County, California: Preprint, Society for Mining, Metallurgy, and Exploration, 1989 Annual Meeting, Las Vegas, 11 p.
Landefeld, L.A., 1990, The geology of the Mother Lode gold belt, Foothills Metamorphic Belt, 'Sierra Nevada, California, in Landefeld, L.A. and Snow, G.G., eds., Yosemite and the Mother Lode Gold Belt: Geology, tectonics, and the evolution of hydrothermal fluids in the Sierra Nevada of California: Pacific Section, American Assoc. of Petroleum Geologists Guidebook 68, 200 p. Landefeld, L.A., and Silberman, M.L., 1987, Geology and geochemistry of the Mother Lode Gold Belt, California, compared with Archaean lode gold deposits, in Johnson, J.L., ed., Guidebook for Field Trips, Bulk Mineable Precious Metal Deposits of the Western United States Symposium, Reno, April 6-8, 1987: Geological Society of Nevada, 418 p. Landefeld, L.A., and Snow, G.G., 1990, Road logs and maps, in Landefeld, L.A. and Snow, G.G., eds., Yosemite and the Mother Lode Gold Belt: Geology, tectonics, and the evolution of hydrothermal fluids in the Sierra Nevada of California: Pacific Section, American Assoc. of Petroleum Geologists Guidebook 68, 200 p. Lechner, Mike, and Kuhl, Tim, 1990, Geology of the Royal Mountain King mine: Preprint, Northwest Mining Association annual convention, Spokane, December, 1990, 19 p. Lindgren, Waldemar, 1896, The gold-quartz veins of Nevada City and Grass Valley, California, p. 1-262, in Seventeenth Annual Report of the United States Geological Survey to the Secretary of the Interior, 1895-96, Part II, 864 p. Motooka, J.M., 1990, Organometallic halide extraction applied to the analysis of geologic materials for 10 elements by inductively coupled-atomic emission spectrometry, in Arbogast, B.F., Quality assurance manual for the Branch of Geochemistry, U.S. Geological Survey: U.S. Geological Survey Open-File Report 90-668, 184 p. Nash, J.T., 1988, Geology and geochemistry of gold deposits of the Big Canyon area, El Dorado County, California: U.S. Geological Survey Professional Paper 1854, 40 p. O'Leary, R.M., and Chao, T.T., 1990, Determination of gold, tellurium, and thallium in rock, stream-sediment, and soil samples by flame, and gold by graphite furnace, atomic absorption spectrophotometry following dissolution by HF, aqua regia, and HBr-Br2 , in Arbogast, B.F., Quality assurance manual for the Branch of Geochemistry, U.S. Geological Survey: U.S. Geological Survey Open-File Report 90-668, 184 p. O'Leary, R.M., and Welsch, E.P., 1990, Determination of tungsten in rock, soil, and stream-sediment samples by visible absorption spectrophotometry, in Arbogast, B.F., Quality assurance manual for the Branch of Geochemistry, U.S. Geological Survey: U.S. Geological Survey Open-File Report 90-668, 184 p.
O'Leary, R.M., Crock, J.G., and Kennedy, K.R., 1990, Determination of mercury in'geologic materials by continuous flow-cold vapor-atomic absorption spectrophotometry, in Arbogast, B.F., Quality assurance manual for the Branch of Geochemistry, U.S. Geological Survey: U.S. Geological Survey Open-File Report 90-668, 184 p. Silberman, M.L., and Danielson, Joanne, 1991, Geologic setting, characteristics, and geochemistry of gold-bearing quartz veins in the Klamath Mountains in the Redding 1x2 degree quadrangle, northern California: U.S. Geological Survey Open- File Report 91-595, 27 p. Taggart, J.E., Jr, Bartel, Ardith, and Siems, D.F., 1990, High precision major element analysis of rocks and minerals by wavelength dispersive X-ray fluorescence spectroscopy, in Arbogast, B.F., Quality assurance manual for the Branch of Geochemistry, U.S. Geological Survey: U.S. Geological Survey Open-File Report 90-668, 184 p.
O1 A u. LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.13 (Jch) 0.50 (Js) Js Ag (ppm) r
T Easting (Ft) North Pit Area
B B to H Ofl 700
LLJ LLJ Js Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.13 (Jch) 0.50 (Js) Ag (ppm) EASTING (FT) SKYROCKET PIT AREA
900LJL z g 800NJ UJ Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located 0.13 (Jch) 0.50 (Js) 0.32 (Jst) Ag (ppm) EASTING (FT) GOLD KNOLL PIT AREA
to A 1200 H 1100H UL LU 1000 H 900 H Jch Copper Hill Volcanics Js Salt Spring Slate
Fault, approximately located 6.8 (Jch) 6.5 (Js) Js Al (%)
Easting (Ft) North Pit Area
to VD LU H Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 6.8 (Jch) 6.5 (Js) Js B Al (%) EASTING (FT) SKYROCKET PIT AREA
COo LU 900bi 800700600 - Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located 6.8 (Jch) 6.5 (Js) 7.1 (Jst) ( o/o) EASTING (FT) GOLD KNOLL PIT AREA
U) A A t LLJ Jch Copper Hill Volcanics Js Salt Spring Slate
Fault, approximately located 20 (Jch) 60 (Js) Js As (ppm) EASTING (FT) NORTH PIT AREA
to z o g § UJ u. Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 20 (Jch) 60 (Js) Js B As (ppm) T T T T EASTING (FT) SKYROCKET PIT AREA
U Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located 20 (Jch) 60 (Js + Jst) As (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A LJL Op 1000-1
LU LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located
0.10 (Both units) 0.004 (Jch) 0.002 (Js) Js Au (ppm) EASTING (FT) NORTH PIT AREA
CJ Ul UJ UJ 800 H h700 - Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.10 (Both units) 0.004 (Jch) 0.002 (Js) Js B Au (ppm) EASTING (FT) SKYROCKET PIT AREA
U) On U. Lu
Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate Fault, approximately located 0.10 (All units) 0.004 (Jch + Jst) 0.002 (Js) Au (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A Oc 1000
Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 120 (Jch) 470 (Js) Js Ba (ppm) r r
r
r r EASTING (FT) NORTH PIT AREA
B B U) Co Lu Lu
Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 120 (Jch) 470 (Js) Js Ba (ppm) T T r r EASTING (FT) SKYROCKET PIT AREA
U) LLJ H Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 120 (Jch) 470 (Js) 280 (Jst) Ba (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A u. LLJ LLJ Js Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 1 (Both units) Js Be (ppm) T EASTING (FT) NORTH PIT AREA
B B H Z O Uj
UJ Js Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 1 (Both units) Be (ppm)
r EASTING (FT) SKYROCKET PIT AREA
to 900 H E Z 800 H LU Js Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located HI 1 (All units) Be (ppm) EASTING (FT) GOLD KNOLL PIT AREA
U) A O LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 5.7 (Jch) 2.4 (Js) Js Ca (%)
T Easting (Ft) North Pit Area
Copper Hill Volcanics Salt Spring Slate Fault, approximately located 5.7 (Jch) 2.4 (Js) EASTING (FT) SKYROCKET PIT AREA
Ul LJJ ±d o Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 5.7 (Jch) 2.4 (Js) 2.9 (Jst) Ca (%) EASTING (FT) GOLD KNOLL PIT AREA
A or- 1000 -I LU LU 900 H Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.077 (Jch) 0.28 (Js) Js Cd (ppm) r ITI EASTING (FT) NORTH PIT AREA
-J OXIDE ZONE B Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.077 (Jch) 0.28 (Js) Js Cd (ppm) EASTING (FT) SKYROCKET PIT AREA
oo 900i£ soo- § "J Js Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 0.077 (Jch) 0.28 (Js) 0.26 (Jst) Cd (ppm) EASTING (FT) GOLD KNOLL PIT AREA
VO A 1300 n O jZ 1000 -
UJ UJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 4 (Jch) 20 (Js) Js Ce (ppm) t EASTING (FT) NORTH PIT AREA
B B o .-. 800 H H LJJ LJJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 4 (Jch) 20 (Js) Js Ce (ppm) T r
r EASTING (FT) SKYROCKET PIT AREA
1000900ii 800s UJ U 700600 - Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate "" "" Fault, approximately located 4 (Jch) 20 (Js) 14 (Jst) Ce (ppm) EASTING (FT) GOLD KNOLL PIT AREA
Ul N) A z LLJ LLJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 36 (Jch) 16 (Js) Co (ppm) T EASTING (FT) NORTH PIT AREA
Ul CO z
Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 36 (Jch) 16 (Js) EASTING (FT) SKYROCKET PIT AREA
ui w 700 H Js OXIDE ZONE Jch *5S8fri*,
Js o Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located 36 (Jch) 16 (Js) 32 (Jst) Co (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A t z LU LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 350 (Jch) Js Cr (ppm) r r EASTING (FT) NORTH PIT AREA
B B . 800 H LU 600 " Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 350 (Jch) 100 (Js) T EASTING (FT) SKYROCKET PIT AREA
1000900 -
800s LU U Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 350 (Jch) 100 (Js) 290 (Jst) Cr (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A . noon
LU LJJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 59 (Jch) 54 (Js) Js Cu (ppm) EASTING (FT) NORTH PIT AREA
U1 V£> t § UJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 59 (Jch) 54 (Js) Cu (ppm) EASTING (FT) SKYROCKET PIT AREA
1000900z UJ U Jch Jst Js Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 59 (Jch) 54 (Js) 88 (Jst) Cu (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A t z o UJ UJ Js Jch Copper Hill Volcanics Js Salt Spring Slate
Fault, approximately located 6.0 (Jch) 4.5 (Js) Js Fe (%) r r r EASTING (FT) NORTH PIT AREA
ON LJJ LJJ . 800 H h700 H Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 6.0 (Jch) 4.5 (Js) Js B Fe (%) T EASTING (FT) SKYROCKET PIT AREA
U) 800 H LU m 700 H Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate Fault, approximately located 6.0 (Jch) 4.5 (Js) 5.3 (Jst) Fe (%) EASTING (FT) GOLD KNOLL PIT AREA
A -, 1100H LJJ LJJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 13 (Jch) 14 (Js) Js Ga (ppm) EASTING (FT) NORTH PIT AREA
t Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 13 (Jch) 14 (Js) Js B Ga (ppm) EASTING (FT) SKYROCKET PIT AREA
LU z 800 H Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 "" "" Fault, approximately located 13 (Jch) 14 (Js + Jst) Ga (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A A LLJ LU Js Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.04 (Jch) 0.14 (Js) Hg (ppm) EASTING (FT) NORTH PIT AREA
B B 1000 -] .-. 800 - § Ljlj
Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.04 (Jch) 0.14 (Js) Js Hg (ppm) r EASTING (FT) SKYROCKET PIT AREA
1000900 - 800 H LLJ m 700 H Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located 0.04 (Jch) 0.14 (Js) 0.02 (Jst) Hg (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A -, 1100A LU UJ Js Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.93 (Jch) 1.7(Js) Js T EASTING (FT) NORTH PIT AREA
t UJ -J UJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.93 (Jch) 1.7 (Js) Js B r r EASTING (FT) SKYROCKET PIT AREA
u. LU Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 0.93 (Jch) 1.7 (Js) 1.2 (Jst) EASTING (FT) GOLD KNOLL PIT AREA
A
LLJ LLJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 4 (Jch) 10 (Js) Js La (ppm) EASTING (FT) NORTH PIT AREA
B B Hi Jch Copper Hill Volcanics Js Salt Spring Slate Fault, approximately located 4 (Jch) ESSSiJsJsSjSEa TO (JS) Js La (ppm) r T r r r EASTING (FT) SKYROCKET PIT AREA
U1 LJL z LU m 700 H Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 4 (Jch) 10 (Js) 8 (Jst) La (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A 1300 n 1100H ofl 1000 -
LLJ LU Js Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 27 (Jch) 14 (Js) Li (ppm) T EASTING (FT) NORTH PIT AREA
B B --. 800 H H LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 27 (Jch) 14 (Js) Js Li (ppm) r EASTING (FT) SKYROCKET PIT AREA
id soo - Js Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate Fault, approximately located 27 (Jch) 14 (Js) 11 (Jst) Li (ppm) o EASTING (FT) GOLD KNOLL PIT AREA
A 1100- t z g LU LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 7.3 (Jch) 6.9 (Js) Js Loss on Ignition (%) r r EASTING (FT) NORTH PIT AREA
00o O LU LU LJL
Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 7.3 (Jch) 6.9 (Js) Js B Loss on Ignition (%)
r EASTING (FT) SKYROCKET PIT AREA
LJL z H m 700 H Js Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located 7.3 (Jch) B 6.9 (Js) 7.7 (Jst) Loss on Ignition (%) EASTING (FT) GOLD KNOLL PIT AREA
t o: 1000 -i s LU LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 4.6 (Jch) 1.6(Js) Js Mg (%) r
r T EASTING (FT) NORTH PIT AREA
B B .-. 800 - s LLJ Jch Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 4.6 (Jch) 1.6 (Js) Js Mg (%) EASTING (FT) SKYROCKET PIT AREA
1000900bi Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located 4.6 (Jch) I 1-6(Js) 4.5 (Jst) Mg (%) EASTING (FT) GOLD KNOLL PIT AREA
A A 1 z oI LU UJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 1100 (Jch) 650 (Js) Js Mn (ppm) r EASTING (FT) NORTH PIT AREA
B B LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 1100 (Jch) 650 (Js) Js Mn (ppm) r
r EASTING (FT) SKYROCKET PIT AREA
w 700 H Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 1100 (Jch) 650 (Js) 1000 (Jst) Mn (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A t A z o
W UJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.20 (Jch) 0.92 (Js) Mo (ppm) r EASTING (FT) NORTH PIT AREA
OXIDE ZONE Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.20 (Jch) 0.92 (Js) Mo (ppm) EASTING (FT) SKYROCKET PIT AREA
1000LJL LU Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 0.20 (Jch) 0.92 (Js) 0.94 (Jst) Mo (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A 1100- t z o LLJ LLJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 1.5 (Jch) 1.1 (Js) Js Na (%) T T T EASTING (FT) NORTH PIT AREA
to LU o pi 700
LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 1.5 (Jch) 1.1 (Js) Js B Na (%) r
r r EASTING (FT) SKYROCKET PIT AREA
s UJ "J Js Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located 1.5 (Jch + Jst) <1.KJs) Na (%) o EASTING (FT) GOLD KNOLL PIT AREA
A z O LU Js Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 4 (Both units) Js Nb (ppm) T EASTING (FT) NORTH PIT AREA
LU B t Jch Copper Hill Volcanics Js Salt Spring Slate
Fault, approximately located Js 4 (Both units) 1Mb (ppm) EASTING (FT) SKYROCKET PIT AREA
LU t z 800 H Js Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate Fault, approximately located 4 (All units) Nb (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A t LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 7 (Jch) 11 (Js) Nd (ppm) EASTING (FT) NORTH PIT AREA
B B HI HI Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 7 (Jch) 11 (Js) Js Nd (ppm) r EASTING (FT) SKYROCKET PIT AREA
LJL z 800 H Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate Fault, approximately located 7 (Jch) 11 (Js) 10 (Jst) Nd (ppm) EASTING (FT) GOLD KNOLL PIT AREA
ELEVATION (FT) o o 00o o COo o o o o o o o o COo o 30 m o o N3 O O COo o o o CJ1o o O)o o o o 00o o COo o o o o
ozr IAIA o ft) ft) O -o Sal CO 3 a ft) (D r+ <o" o ft) o Q. T3 T3
o H B u. Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 110 (Jch) 55 (Js) Js Ni (ppm) T EASTING (FT) SKYROCKET PIT AREA
u. o N) LU Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 110 (Jch) 55 (Js) 120 (Jst) Ni (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A 1100H o
LJJ Jch Copper Hill Volcanics Js Salt Spring Slate
Fault, approximately located 0.03 (Jch) 0.09 (Js) T T EASTING (FT) NORTH PIT AREA T
Hi B t Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.03 (Jch) 0.09 (Js) Js T EASTING (FT) SKYROCKET PIT AREA
o Ul 800 -] H700600 - Js Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate Fault, approximately located £ 0.03 (Jch) 0.09 (Js) 0.06 (Jst) EASTING (FT) GOLD KNOLL PIT AREA
ELEVATION (FT) o o oo o o COoo o o o o o ro o o COo o o o fr
O3-
TI H m ro o o COo o o o en o o O)o o o o oo o o COo o 01 VJ 2. CO £ § CO
5" w
S
w o o CD J-t CD Q. ®- M // // 1
'. /$ / v /
O / X / 0 / m N / m /
no cr ! s A
CO o o o
B B o-J 1000 n O JZ 700 H
LJJ LJJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 5 (Jch) 17 (Js) Js Pb (ppm) T EASTING (FT) SKYROCKET PIT AREA
o HI 900 H z 800 H Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 5 (Jch) 17 (Js) 6 (Jst) Pb (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A 1100 H hLJL LJU
LJU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.05 (Jch) 0.50 (Js) Js Total S (%) EASTING (FT) NORTH PIT AREA
Lu
LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.05 (Jch) 0.50 (Js) B Total S (%) EASTING (FT) SKYROCKET PIT AREA
H H z w 700 Js Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate Fault, approximately located 0.05 (Jch + Jst) 0.50 (Js) Total S (%) EASTING (FT) GOLD KNOLL PIT AREA
to A LU I LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.67 (Jch) 1.9 (Js) Sb (ppm) EASTING (FT) NORTH PIT AREA
U) Ilu Lu
Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.67 (Jch) 1.9 (Js) EASTING (FT) SKYROCKET PIT AREA
900i± 800LLJ Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 0.67 (Jch) 1.9 (Js) 1.2 (Jst) Sb (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A 1100- t LLJ LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 27 (Jch) 15(Js) Js Sc (ppm) EASTING (FT) NORTH PIT AREA
Copper Hill Volcanics Salt Spring Slate Fault, approximately located EASTING (FT) SKYROCKET PIT AREA
i£ Js LJJ Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate Fault, approximately located 27 (Jch) 15 (Js) 32 (Jst) Sc (ppm) EASTING (FT) GOLD KNOLL PIT AREA
CO A .-. 1100 - A LU LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 48 (Jch) 62 (Js) Js SI0 r EASTING (FT) NORTH PIT AREA
B B 1000 -] LJL LU LLJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 48 (Jch) 62 (Js) Js (%) T EASTING (FT) SKYROCKET PIT AREA
to o LJL LJJ z Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 48 (Jch) 62 (Js) 46 (Jst) EASTING (FT) GOLD KNOLL PIT AREA
A z o p 1000-1 LU LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 210 (Jch) 230 (Js) Js Sr (ppm) r EASTING (FT) NORTH PIT AREA
B B .-. 800 H u. O fl 700 - Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 210 (Jch) 230 (Js) Js Sr (ppm) EASTING (FT) SKYROCKET PIT AREA
to LJJ "J Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate Fault, approximately located 210 (Jch) 230 (Js) 180 (Jst) Sr (ppm) EASTING (FT) GOLD KNOLL PIT AREA
to A Ofl 1000 - A LJLJ
LJLJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.005 (Jch) 0.040 (Js) Te (ppm) EASTING (FT) NORTH PIT AREA
B B to LJJ
Ljj
Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.005 (Jch) 0.040 (Js) Js Te (ppm) r Till EASTING (FT) SKYROCKET PIT AREA
to Z s LU "J Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 0.005 (Jch + Jst) 0.040 (Js) Te (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A 1200 H A Hto § LU 1000 H 900 H 800 H Jch Copper Hill Volcanics Js Salt Spring Slate
Fault, approximately located Js 4 (Both units) Th (ppm) i i i i i i i i i i i i EASTING (FT) NORTH PIT AREA
z o U4 U4 B Jch Copper Hill Volcanics Js Salt Spring Slate
Fault, approximately located Js 4 (Both units) Th (ppm) T EASTING (FT) SKYROCKET PIT AREA
N) VD 1000900 - U Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate "" "" Fault, approximately located 4 (All units) Th (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A 1300 H A o LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.28 (Jch) 0.14 (Js) Js Ti (%) EASTING (FT) NORTH PIT AREA
B B H
op: 700 - LU LU V OXIDE ZONE Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.28 (Jch) 0.14 (Js) Js Ti (%) T EASTING (FT) SKYROCKET PIT AREA
U) to bd!
700 H Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate Fault, approximately located 0.28 (Jch) 0.14(Js) 0.11 (Jst) Ti (%) EASTING (FT) GOLD KNOLL PIT AREA
Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.10 (Jch) 0.20 (Js) Tl (ppm) EASTING (FT) NORTH PIT AREA
B B . 800 H Uj
UJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 0.10 (Jch) 0.20 (Js) Js Tl (ppm) T EASTING (FT) SKYROCKET PIT AREA
ui ft 900z O Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located 0.10 (Jch) 0.20 (Js) 0.15 (Jst) Tl (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A 1200 H 1100H iooo H A' Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 210 (Jch) 120(Js) EASTING (FT) NORTH PIT AREA
U) v- OXIDE ZONE Copper Hill Volcanics Salt Spring Slate Fault, approximately located 210 (Jch) 120 (Js) EASTING (FT) SKYROCKET PIT AREA V (ppm)
Cj 800 H
700 H Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located 210 (Jch) 120 (Js) 200 (Jst) V (ppm) EASTING (FT) GOLD KNOLL PIT AREA
H U) VD A t z o [I 1000 LU LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 1.5 (Jch) 3.0 (Js) W (ppm) EASTING (FT) NORTH PIT AREA
O Copper Hill Volcanics Salt Spring Slate Fault, approximately located 1.5 (Jch) 3.0 (Js) W (ppm) LJJ EASTING (FT) SKYROCKET PIT AREA
LU z 800 -j H Js Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 1.5 (Jch) 3.0 (Js) 2.5 (Jst) W (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A 1100 - o[I 1000 - A 1 CO LLJ Jch Copper Hill Volcanics Js Salt Spring Slate
Fault, approximately located Js 11 (Both units) Y (ppm) T I I I I I I T 1 T EASTING (FT) NORTH PIT AREA
B B 900 H § Uj H 600 H 500 H
/ Jch Copper Hill Volcanics Js Salt Spring Slate Fault, approximately located Js
11 (Both units) Y (ppm) T r T r EASTING (FT) SKYROCKET PIT AREA
Z
w Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located (Jch + Js) Y (ppm)
Easting (Ft) Gold Knoll Pit Area
Ul A t LJLJ LJLJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 1 (Both units) Js Yb (ppm) EASTING (FT) NORTH PIT AREA
B B Ljl
LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 1 (Both units) Js Yb (ppm) EASTING (FT) SKYROCKET PIT AREA
bi Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate Fault, approximately located 1 (Jch + Js) 1 (Jst) Yb (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A 1300 n 1100t o P A CO
LJJ LJJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 54 (Jch) 110 (Js) Js Zn (ppm) r
Easting (Ft) North Pit Area
OXIDE ZONE Copper Hill Volcanics Salt Spring Slate Fault, approximately located 54 (Jch) 110 (Js) Zn (ppm) EASTING (FT) SKYROCKET PIT AREA
w Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 54 (Jch) 110 (Js) 90 (Jst) Zn (ppm) EASTING (FT) GOLD KNOLL PIT AREA
A A Or- 1000 H ui LU LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 7 (Jch) 18 (Js) Js White Mica T r r r EASTING (FT) NORTH PIT AREA
B B U1 N) ofl 700
ft Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 7 (Jch) 18 (Js) Js White Mica T EASTING (FT) SKYROCKET PIT AREA
Ulw UL bi 800LJJ Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate Fault, approximately located 7 (Jch) 18 (Js) 15 (Jst) White Mica
Easting (Ft) Gold Knoll Pit Area
A 1300 H A 1 o ui 4, LJJ LJJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 1 (Both units) Js Kaolinite EASTING (FT) NORTH PIT AREA
B B t z o P 700 - LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 1 (Both units) Js Kaolinite
Easting (Ft) Skyrocket Pit Area
Ol LU LU Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located I 1 (All units) Kaolinite EASTING (FT) GOLD KNOLL PIT AREA
A A u. 2op 1000 UJ UJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 5 (Jch) Js Chlorite r r EASTING (FT) NORTH PIT AREA
ui LU .-. 800 H O jZ 700
Jch Copper Hill Volcanics Js Salt Spring Slate Fault, approximately located 5 (Jch) Js B Chlorite r r r EASTING (FT) SKYROCKET PIT AREA
(Jl i£ LU Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located 5 (Jch) 4 (Jst) Chlorite EASTING (FT) GOLD KNOLL PIT AREA
A u. orz 1000 -i UJ I UJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located £ 20 (Jch) 61 (Js) Quartz r r EASTING (FT) NORTH PIT AREA
B B 800 H O jZ 700 - LJLJ LJLJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 20 (Jch) 61 (Js) Js Quartz EASTING (FT) SKYROCKET PIT AREA
to Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 20 (Jch) 61 (Js) 32 (Jst) Quartz EASTING (FT) GOLD KNOLL PIT AREA
A u. Jch Copper Hill Volcanics Js Salt Spring Slate
Fault, approximately located 5 (Jch) Orthoclase EASTING (FT) NORTH PIT AREA
B B cr z o £1 700
UJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 5 (Jch) Js Orthoclase
T
T Easting (Ft) Skyrocket Pit Area
z Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located 5 (Jch) 7 (Js + Jst) Orthoclase EASTING (FT) GOLD KNOLL PIT AREA
A O r- 1000 -H LJU LJU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 37 (Jch) 42 (Js) Plagioclase EASTING (FT) NORTH PIT AREA
Copper Hill Volcanics Salt Spring Slate Fault, approximately located 37 (Jch) 42 (Js) Plagioclase EASTING (FT) SKYROCKET PIT AREA
800 H H Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 37 (Jch) 42 (Js) 63 (Jst) Plagioclase EASTING (FT) GOLD KNOLL PIT AREA
1200 H 1100 H z r- 1000-1
900 H Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 4 (Jch) EASTING (FT) NORTH PIT AREA
-. 800 H O
Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 4 (Jch) T r
r EASTING (FT) SKYROCKET PIT AREA
Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located 4 (Jch) 5 (Jst) Calcite o EASTING (FT) GOLD KNOLL PIT AREA
A 1200 J H o C 1000 H LU LU Js Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 17 (Jch) 50 (Js) Js Ankerite n r r T r ,200 EASTING (FT) NORTH PIT AREA
-J CO Copper Hill Volcanics Salt Spring Slate Fault, approximately located 17 (Jch) 50 (Js) Ankerite LU EASTING (FT) SKYROCKET PIT AREA
LU 900 H t z 800 H 600 H Js Jch Jst Js Copper Hill Volcanics Salt Spring Slate, tuffaceous member Salt Spring Slate Fault, approximately located 17 (Jch) 50 (Js) 15 (Jst) Ankerite EASTING (FT) GOLD KNOLL PIT AREA
A .-. 110° H Or- 1000 1 LJJ LJJ Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 1 (Both units) A 1 Magnesite EASTING (FT) NORTH PIT AREA
-OXIDEZONE Copper Hill Volcanics Salt Spring Slate Fault, approximately located 1 (Both units) Magnesite EASTING (FT) SKYROCKET PIT AREA
900 H LU U 600 H Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located 1 (All units) Magnesite EASTING (FT) GOLD KNOLL PIT AREA
A or- 1000 -H xj
03 LU LU Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 1 (Jch) Js Pyrite EASTING (FT) NORTH PIT AREA
vj VD z o LU
LU .-. 800 - Jch Js Copper Hill Volcanics Salt Spring Slate Fault, approximately located 1 (Jch) Js B Pyrite EASTING (FT) SKYROCKET PIT AREA
00o z I700600 - Js Jch Copper Hill Volcanics Jst Salt Spring Slate, tuffaceous member Js Salt Spring Slate 1 Fault, approximately located 1 (Jch + Jst) Pyrite EASTING (FT) GOLD KNOLL PIT AREA
DESCRIPTIONS OF APPENDICES 1 AND 2 Appendix 1 lists the chemical analyses for 44 elements determined in 300 samples of drill core or cuttings from the Hodson district. Following is a brief description of the column headings. Sam. ID For each sample ID, the letters (HD or MK) are for project identification. The first two numbers identify individual drill holes and the last three numbers give the average depth of the sample, in feet, below the collar. Latitude and Longitude The next two columns give, in degrees, minutes and seconds the approximate latitude and longitude for the appropriate cross section on which a given drill hole is located. The hole IDs are labelled on figures 3 to 5. Ag ppm through Zr ppm These columns of analyses list the element symbol, whether the concentrations are in percent or parts per million (ppm), and the analytical method. Within the data set, the values may be qualified with "N", "L", or "H". The meaning of these qualifiers is given on the first page of appendix 1. The letters "icp" below an element name indicate that it was determined by total extraction using inductively coupled plasma-atomic emission spectrometry (ICP-AES); "picp" indicates partial-extraction ICP; "aa" indicates atomic absorption analysis; "grav" indicates gravimetric analysis; "comb" indicates a combustion technique; and "xrf" indicates X-ray fluorescence analysis. Details of the analytical methods are given in the Analysis of Samples section of this report. Appendix 2 lists the estimated values for peak heights for 10 minerals in 172 samples of drill core or cuttings, as determined by X-ray diffraction. A "0" for a given mineral indicates that it was looked for but not detected for a given sample. Leaders ( ) for a given sample indicate that it was not analyzed for its mineralogy.
Appendix 1. DATA FOR SAMPLES OF DRILL CORE OR CUTTINGS. HOOSON DISTRICT. CALIFORNIA [N=not detected at lower limit of determination shown preceding letter. L=detected, but in a concentration less than value shown preceding letter. H=not reported because of interference. See text for data on analytical methods] Sam. ID Latitude Longitude Ag ppm Al % As ppip Au ppm Ba ppm Be ppm Bi ppm Ca % Cd ppm Ce ppm picp icp icp aa icp icp picp icp picp icp HD01007 HD01012 HD01017 HD01022 HD01032 HD01037 HD01042 HD01047 HD01052 HD01057 HD01062 HD01067 HD01072 HD01077 HD01082 HD01087 HD01092 HD01097 HD01102 HD01107 HD01112 HD01117 HD01122 HD01127 HD01132 HD01137 HD02002 HD02007 HD02012 HD02017 HD02022 HD02032 HD02042 HD02052 HD02062 HD02072 HD02082 HD02092 HD02102 HD02112 HD02122 HD02132 HD02142 HD02152 HD02157 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 0.045 N 0.045 N 0.045 N 0.045 N 0.045 N 0.045 N 0.045 N 0.045 N 0.045 N 0.045 N 0.045 N 0.045 N 0.045 N 0.002 N 0.002 N 0.002 N 0.002 N 0.002 N 1 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N
Appendix 1. continued Sam. ID HD01007 HD01012 HD01017 HD01022 HD01032 HD01037 HD01042 HD01047 HD01052 HD01057 HD01062 HD01067 HD01072 HD01077 HD01082 HD01087 HD01092 HD01097 HD01102 HD01107 HD01112 HD01117 HD01122 HD01127 HD01132 HD01137 HD02002 HD02007 HD02012 HD02017 HD02022 HD02032 HD02042 HD02052 HD02062 HD02072 HD02082 HD02092 HD02102 HD02112 HD02122 HD02132 HD02142 HD02152 HD02157 Co ppm icp Cr ppm icp Cu ppm icp Eu ppm icp Fe % icp Ga ppm icp Hg ppm aa 0.02 N 0.02 N 0.02 N 0.02 N 0.02 N 0.02 N 0.02 N K y N /o icp La ppm icp Li ppm icp LOI % grav Mg % icp Mn ppm icp Mo ppr picp
Appendix 1. continued Sam. ID HD01007 HD01012 HD01017 HD01022 HD01032 HD01037 HD01042 HD01047 HD01052 HD01057 HD01062 HD01067 HD01072 HD01077 HD01082 HD01087 HD01092 HD01097 HD01102 HD01107 HD01112 HD01117 HD01122 HD01127 HD01132 HD01137 HD02002 HD02007 HD02012 HD02017 HD02022 HD02032 HD02042 HD02052 HD02062 HD02072 HD02082 HD02092 H002102 HD02112 HD02122 HD02132 HD02142 HD02152 HD02157 Na % icp Nb ppm icp Nd ppm icp Ni ppm icp P % icp Pb ppm icp S % comb Sb ppm picp 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N Sc ppm icp Si 02 % xrf Sr ppm icp Te ppm aa O.OQ5 L Th ppm icp
Appendix 1. continued Sam. ID HD01007 HD01012 HD01017 HD01022 HD01032 HD01037 HD01042 HD01047 HD01052 HD01057 HD01062 HD01067 HD01072 HD01077 HD01082 HD01087 HD01092 HD01097 HD01102 HD01107 HD01112 HD01117 HD01122 HD01127 HD01132 HD01137 HD02002 HD02007 HD02012 HD02017 HD02022 HD02032 HD02042 HD02052 HD02062 HD02072 HD02082 HD02092 HD02102 HD02112 HD02122 HD02132 HD02142 HD02152 HD02157 Ti % icp Tl ppm aa .05 N V ppm icp W ppm aa Y ppm icp Yb ppm Zn ppm icp icp Geologic unit Copper Hill Copper Hill Copper Hill Copper Hi 1 1 Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Salt Spring Salt Spring Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Slate Slate Slate Slate Slate Slate Slate Slate Slate Slate Slate Slate Slate Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Slate Slate
Appendix 1.--continued Sam. ID H002162 H002172 H002182 H002192 H002202 HD03002 HD03007 HD03012 HD03022 HD03032 HD03042 HD03052 HD03062 HD03072 HD03082 HD03092 HD03102 HD04002 HD04007 HD04012 HD04022 HD04032 HD04042 HD04052 HD04062 HD04072 HD04082 HD04092 HD04102 HD04112 HD04117 HD05002 HD05007 HD05012 HD05022 HD05032 HD05042 HD05052 HD05062 HD05072 HD05082 HD05092 HD05102 HD05112 HD05117 Latitude Longitude 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 Ag ppm picp AT % icp As ppm icp Au ppm aa 0.002 N 0.002 N 0.002 N 0.002 N 0.002 N 0.002 N 0.002 N 0.002 N 0.002 N 0.002 N 0.002 N Ba ppm icp Be ppm icp Bi ppm picp 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N Ca % icp Cd ppm picp Ce ppm icp
Appendix 1.--continued Sam. ID HD02162 HD02172 HD02182 HD02192 HD02202 H003002 HD03007 HD03012 HD03022 HD03032 HD03042 HD03052 HD03062 HD03072 HD03082 HD03092 HD03102 HD04002 HD04007 HD04012 HD04022 HD04032 HD04042 HD04052 HD04062 HD04072 HD04082 HD04092 HD04102 HD04112 HD04117 HD05002 HD05007 HD05012 HD05022 HD05032 HD05042 HD05052 HD05062 HD05072 HD05082 HD05092 HD05102 HD05112 HD05117 Co ppm icp Cr ppm icp Cu ppm icp Eu ppm icp Fe % icp Ga ppm icp Hg ppm aa 0.02 N V o/ N /o icp La ppm icp Li ppm icp LOI % grav Mg % icp Mn ppm icp Mo ppr picp
Appendix 1.--continued Sam. ID H002162 H002172 HD02182 H002192 HD02202 HD03002 HD03007 HD03012 HD03022 HD03032 HD03042 HD03052 HD03062 HD03072 HD03082 HD03092 HD03102 HD04002 HD04007 HD04012 HD04022 HD04032 HD04042 HD04052 HD04062 HD04072 HD04082 HD04092 HD04102 HD04112 HD04117 HD05002 HD05007 HD05012 HD05022 HD05032 HD05042 HD05052 HD05062 HD05072 HD05082 HD05092 HD05102 HD05112 HD05117 Na % icp Nb ppm icp Nd ppm icp Ni ppm icp P % icp Pb ppm icp S % , comb Sb ppm picp 0.60 N L 0.60 N Sc ppm icp Si 02 % xrf Sr ppm icp Te ppm aa 0.02'5 Th ppm icp
Appendix 1. continued Sam. ID HD02162 HD02172 HD02182 HD02192 HD02202 HD03002 HD03007 HD03012 HD03022 HD03032 HD03042 HD03052 HD03062 HD03072 HD03082 HD03092 HD03102 HD04002 HD04007 HD04012 HD04022 HD04032 HD04042 HD04052 HD04062 HD04072 HD04082 HD04092 HD04102 HD04112 HD04117 HD05002 HD05007 HD05012 HD05022 HD05032 HD05042 HD05052 HD05062 HD05072 HD05082 HD05092 HD05102 HD05112 HD05117 Ti % icp Tl ppm aa V ppm icp W ppm aa Y ppm icp Yb ppm icp Zn ppr icp Geologic unit Salt Spring Slate Salt Spring Slate Salt Spring Slate Salt Spring Slate Salt Spring Slate Copper Hill Volcanics (?) Copper Hill Volcanics (?) Copper Hill Volcanics (?) Copper Hill Volcanics (?) Salt Spring Slate Salt Spring Slate Salt Spring Slate Salt Spring Slate Salt Spring Slate Salt Spring Slate Salt Spring Slate Salt Spring Slate Salt Spring Slate, tuffaceous member Salt Spring Slate, tuffaceous member Salt Spring Slate, tuffaceous member Salt Spring Slate, tuffaceous member Salt Spring Slate, tuffaceous member (?) Salt Spring Slate, tuffaceous member (?) Salt Spring Slate Salt Spring Slate Salt Spring Slate Salt Spring Slate Salt Spring Slate Salt Spring Slate Salt Spring Slate Salt Spring Slate Salt Spring Slate, Salt Spring Slate, Salt Spring Slate, Salt Spring Slate, Salt Spring Slate, Salt Spring Slate, Salt Spring Slate, Salt Spring Slate, Salt Spring Slate, Salt Spring Slate, Salt Spring Slate, Salt Spring Slate, Salt Spring Slate, Salt Spring Slate tuffaceous member tuffaceous member tuffaceous member tuffaceous member tuffaceous member tuffaceous member tuffaceous member tuffaceous member tuffaceous member tuffaceous member tuffaceous member tuffaceous member tuffaceous member
Appendix 1.--continued Sam. ID Latitude Longitude HD05122 37 59 12 120 40 37 HD05132 37 59 12 120 40 37 HD05142 37 59 12 120 40 37 HD05152 37 59 12 120 40 37 HD05162 37 59 12 120 40 37 HD05172 37 59 12 120 40 37 HD05182 37 59 12 120 40 37 HD05192 37 59 12 120 40 37 HD05202 37 59 12 120 40 37 HD05212 37 59 12 120 40 37 HD05222 37 59 12 120 40 37 HD05232 37 59 12 120 40 37 HD05242 37 59 12 120 40 37 HD06002 37 59 12 120 40 37 HD06007 37 59 12 120 40 37 HD06012 37 59 12 120 40 37 HD06022 37 59 12 120 40 37 HD06032 37 59 12 120 40 37 HD06042 37 59 12 120 40 37 HD06052 37 59 12 120 40 37 HD06062 37 59 12 120 40 37 HD06072 37 59 12 120 40 37 HD06082 37 59 12 120 40 37 HD06092 37 59 12 120 40 37 HD06097 37 59 12 120 40 37 HD07010 37 59 12 120 40 37 HD07020 37 59 12 120 40 37 HD07030 37 59 12 120 40 37 HD07040 37 59 12 120 40 37 HD07050 37 59 12 120 40 37 HD07059 37 59 12 120 40 37 HD07063 37 59 12 120 40 37 HD07068 37 59 12 120 40 37 HD07080 37 59 12 120 40 37 HD07090 37 59 12 120 40 37 HD07100 37 59 12 120 40 37 HD07110 37 59 12 120 40 37 HD07122 37 59 12 120 40 37 HD07130 37 59 12 120 40 37 HD07140 37 59 12 120 40 37 HD07150 37 59 12 120 40 37 HD08002 37 59 12 120 40 37 HD08007 37 59 12 120 40 37 HD08012 37 59 12 120 40 37 HD08022 37 59 12 120 40 37 ig ppm picp 0.045 N Al % icp As ppm icp Au ppm aa .002 N .002 N .002 N .002 N .002 N .002 N .002 N .002 N .002 N .002 N .002 N .002 N Ba ppm icp Be ppm icp Bi ppm picp 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N Ca % icp Cd ppm picp Ce ppm icp
Appendix 1.--continued Sam. ID HD05122 HD05132 HD05142 HD05152 HD05162 HD05172 HD05182 HD05192 HD05202 HD05212 HD05222 HD05232 HD05242 HD06002 HD06007 HD06012 HD06022 HD06032 HD06042 HD06052 HD06062 HD06072 HD06082 HD06092 HD06097 HD07010 HD07020 HD07030 HD07040 HD07050 HD07059 HD07063 HD07068 HD07080 HD07090 HD07100 HD07110 HD07122 HD07130 HD07140 Co ppm icp Cr ppm icp Cu ppm icp Eu ppm icp Fe % icp Ga ppm icp Hg ppm aa 0.02 N 0.02 N K y fa icp La ppm icp Li ppm icp LOI % grav Mg i( Mg % Mn ppm Mo ppm icp icp picp 1280 0.09 N 1310 0.09 N 0.09 N 1270 0.09 N 0.09 N HD07150 HD08002 0.02 N HD08007 0.02 N HD08012 HD08022 0.02 N
Appendix 1.--continued Sam. ID HD05122 HD05132 HD05142 HD05152 HD05162 HD05172 HD05182 HD05192 HD05202 HD05212 HD05222 HD05232 HD05242 HD06002 HD06007 HD06012 HD06022 HD06032 HD06042 HD06052 HD06062 HD06072 HD06082 HD06092 HD06097 HD07010 N HD07020 N HD07030 N HD07D40 N HD07050 N HD07059 HD07063 HD07068 HD07080 HD07090 HD07100 HD07110 HD07122 HD07130 HD07140 HD07150 HD08002 HD08007 HD08012 HD08022 Na % icp Nb ppm icp Nd ppm icp Ni ppm icp P % icp Pb ppm icp t S % comb Sb ppm picp 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N Sc ppm icp Si02 % xrf Sr ppm icp Te ppm aa Th ppm icp
Appendix 1. continued Sam. ID HD05122 HD05132 HD05142 HD05152 HD05162 HD05172 HD05182 HD05192 HD05202 HD05212 HD05222 HD05232 HD05242 HD06002 HD06007 HD06012 HD06022 HD06032 HD06042 HD06052 HD06062 HD06072 HD06082 HD06092 HD06097 HD07010 HD07020 HD07030 HD07040 HD07050 HD07059 HD07063 HD07068 HD07080 HD07090 HD07100 HD07110 HD07122 HD07130 HD07140 HD07150 HD08002 HD08007 HD08012 HD08022 Ti % icp Tl ppm aa 0.05 N 0.05 N 0.05 N 0.05 N 0.05 N 0.05 N V ppm icp W ppm aa Y ppm icp Yb ppm Zn ppm icp
icp Geologic unit Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Copper Hill Copper Hill Copper Hill Copper Hill Slate Slate Slate Slate Slate Slate Slate Slate Slate Slate Slate Slate Slate Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate (?) Slate (?) Slate (?) Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate Slate Volcanics Volcanics Volcanics Volcanics member member member member member member member member member member member member member member member member member
Appendix 1.--continued Sam. ID HD08032 HD08042 HD08052 HD08062 HD08072 HD08082 HD08092 HD08102 HD08112 HD08122 HD08132 HD08137 HD09005 HD09010 HD09020 Latitude Longitude 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 40 37 120 41 15 120 41 15 120 41 15 Ag ppm picp 0.045 N 0.045 N 0.045 N 0.045 N AT % icp As ppm icp Au ppm aa Ba ppm icp 7B Be ppm icp Bi ppm picp 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N Ca % icp Cd ppm picp Ce ppm icp HD09030 37 59 44 120 41 15 HD09040 37 59 44 120 41 15 HD09060 37 59 44 120 41 15 HD09080 37 59 44 120 41 15 HD09100 37 59 44 120 41 15 HD09110 37 59 44 120 41 15 HD09120 37 59 44 120 41 15 HD09130 37 59 44 120 41 15 HD09140 37 59 44 120 41 15 HD09150 37 59 44 120 41 15 HD09164 37 59 44 120 41 15 HD09170 37 59 44 120 41 15 HD09180 37 59 44 120 41 15 HD09200 37 59 44 120 41 15 HD09220 37 59 44 120 41 15 HD09240 37 59 44 120 41 15 HD09260 37 59 44 120 41 15 HD09270 37 59 44 120 41 15 HD09280 37 59 44 120 41 15 HD09290 37 59 44 120 41 15 HD09300 37 59 44 120 41 15 HD09320 37 59 44 120 41 15 HD09330 37 59 44 120 41 15 HD09340 37 59 44 120 41 15 HD09350 37 59 44 120 41 15 HD09370 37 59 44 120 41 15 HD09390 37 59 44 120 41 15 HD09410 37 59 44 120 41 15 HD09430 37 59 44 120 41 15 HD09450 37 59 44 120 41 15 0.045 N 0.045 N 0.045 N 0.045 N 0.045 N 0, 0, 0, 0, 0, 0, ,002 L .002 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N D.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 030 N 030 N 030 N 030 N 030 N 030 N 030 N
Appendix 1.--continued Sam. ID HD08032 HD08042 HD08052 HD08062 HD08072 HD08082 H008092 H008102 H008112 HD08122 H008132 HD08137 HD09005 HD09010 H009020 H009030 H009040 H009060 HD09080 H009100 H009110 HD09120 H009130 H009140 HD09150 HD09164 HD09170 HD09180 H009200 H009220 H009240 H009260 H009270 H009280 HD09290 H009300 H009320 HD09330 HD09340 Co ppm icp Cr ppm icp Cu ppm icp Eu ppm icp Fe % icp 5.D6 Ga ppm icp Hg ppm aa 0.02 N 0.02 N 0.02 N 0.02 N 0.02 N 0.02 N 0.02 N 0.02 N 0.02 N 0.02 N K % icp La ppm icp Li ppm icp LOI % grav H009350 Mg % Mn ppm Mo ppm icp icp picp 0.09 N 0.09 N 0.09 N 0.09 N 0.09 N 0.09 N 0.09 N 0.09 N 0.09 N H009370 HD09390 HD09410 HD09430 HD09450
Appendix 1.--continued Sam. 10 Na % Nb ppm Nd ppm Ni ppm P % Pb ppm S % Sb ppm Sc ppm Si02 % Sr ppm Te ppm Th ppm icp icp icp icp icp icp comb picp icp xrf icp aa icp HD08032 HD08042 HD08052 HD08062 HD08072 HD08082 HD08092 H008102 H008112 H008122 H008132 H008137 H009005 HD09010 HD09020 HD09030 HD09040 HD09060 HD09080 HD09100 HD09110 H009120 HD09130 HD09140 HD09150 HD09164 HD09170 HD09180 HD09200 HD09220 HD09240 HD09260 HD09270 HD09280 HD09290 HD09300 HD09320 HD09330 HD09340 HD09350 HD09370 HD09390 HD09410 HD09430 HD09450 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N
Sam. ID Ti % icp Appendix 1. continued Tl ppm V ppm W ppm Y ppm Yb ppm Zn ppm aa icp aa icp icp ( icp Geologic unit HD08032 HD08042 HD08052 HD08062 HD08072 HD08082 HD08092 HD08102 HD08112 HD08122 HD08132 HD08137 HD09005 HD09010 HD09020 HD09030 HD09040 HD09060 HD09080 HD09100 HD09110 HD09120 HD09130 HD09140 HD09150 HD09164 HD09170 HD09180 HD09200 HD09220 HD09240 HD09260 HD09270 HD09280 HD09290 HD09300 HD09320 HD09330 HD09340 HD09350 HD09370 HD09390 HD09410 HD09430 HD09450 .05 N Copper Hill Copper Hill Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hi 1 1 Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Volcanics Volcanics Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate, tuffaceous Slate Slate Slate Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Slate Slate Slate Slate Slate Slate member member member member member member member
Appendix 1. continued Sam. ID HD09470 HD09490 HD09510 HD10002 HD10007 HD10012 HD10022 HD10032 HD10042 HD10052 HD10062 HD10072 HD10082 HD10092 HD10102 HD11002 HD11007 HD11012 HD11022 HD11032 HD11042 HD11052 HD11062 HD11072 HD11082 HD11092 HD11102 HD11112 HD11122 HD11132 HD11142 HD11152 HD11162 HD11172 HD11182 HD11192 HD11202 HD11212 HD11222 HD12017 HD12022 HD12042 HD12057 HD12082 HD12102 Latitude Longitude 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 12D 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 Ag ppm picp 0.045 N 0.045 N AT % As ppm icp icp Au ppm Ba ppm Be ppm aa 0.002 N 0.002 N 0.002 N 0.002 N 0.002 N icp icp Bi ppm picp 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N Ca % icp "3.08 Cd ppm picp Ce ppm icp
Appendix 1.--continued Sam. ID HD09470 HD09490 HD09510 HD10002 HD10007 HD10012 HD10022 HD10032 HD10042 HD10052 HD10062 HD10072 HD10082 HD10092 HD10102 HD11002 HD11007 HD11012 HD11022 HD11032 HD11042 HD11052 HD11062 HD11072 HD11082 HD11092 HD11102 HD11112 HD11122 HD11132 HD11142 HD11152 HD11162 HD11172 HD11182 HD11192 HD11202 HD11212 HD11222 HD12017 HD12022 HD12042 HD12057 HD12082 HD12102 Co ppm icp Cr ppm icp Cu ppm icp Eu ppm icp Fe % icp Ga ppm icp Hg ppm aa 0.02 N 0.02 N 0.02 N 0.02 N 0.02 N 0.02 N N h icp La ppm icp Li ppm icp LOI % grav Mg Mg % Mn ppm Mo ppm icp icp picp
Appendix 1. continued Sam. ID HD09470 HD09490 HD09510 HD10002 HD10007 HD10012 HD10022 HD10032 HD10042 HD10052 HD10062 HD10072 HD10082 HD10092 HD10102 HD11002 HD11007 HD11012 HD11022 HD11032 HD11042 HD11052 HD11062 HD11072 HD11082 HD11092 HD11102 HD11112 HD11122 HD11132 HD11142 HD11152 HD11162 HD11172 HD11182 HD11192 HD11202 HD11212 HD11222 HD12017 HD12022 HD12042 HD12057 HD12082 HD12102 Na % icp Nb ppm icp Nd ppm icp Ni ppm icp P % icp Pb ppm icp S % comb Sb ppm picp 0.60 N 0.60 N 0.60 N 0.60 N Sc ppm icp Si02 % xrf Sr ppm icp Te ppm aa Th ppm icp
Appendix 1.--continued Sam. ID HD09470 HD09490 HD09510 HD10002 HD10007 HD10012 HD10022 HD10032 HD10042 HD10052 HD10062 HD10072 HD10082 HD10092 HD10102 HD11002 HD11007 HD11012 HD11022 HD11032 HD11042 HD11052 HD11062 HD11072 HD11082 HD11092 HD11102 HD11112 HD11122 HD11132 HD11142 HD11152 HD11162 HD11172 HD11182 HD11192 HD11202 HD11212 HD11222 HD12017 HD12022 HD12042 HD12057 HD12082 HD12102 Ti % icp Tl ppm aa .05 N .05 N .05 N .05 N .05 N V ppm icp W ppm aa Y ppm icp Yb ppm Zn ppm icp icp Geologic unit Salt Spring Salt Spring Salt Spring Copper Hill Copper Hill Copper Hill Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Slate Slate Slate Volcanics Volcanics Volcanics Slate Slate Slate Slate Slate Slate Slate Slate Slate Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Slate Slate Slate Slate Slate Slate Slate Slate Slate Slate Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics
Appendix 1. continued Sam. ID HD12122 HD12132 HD12142 HD12152 HD12162 HD12172 HD12182 HD12192 HD12202 HD13002 HD13007 HD13012 HD13022 HD13032 HD14200 HD14210 HD14220 HD14230 HD14240 HD14250 HD14260 HD14270 HD14280 HD14288 HD14300 HD14310 HD14320 HD14330 HD14340 HD14350 HD14360 HD14370 HD14380 HD14390 MK34002 MK34007 MK34012 MK34017 MK34032 MK34042 MK34052 MK34062 MK34072 MK34082 MK34092 Latitude Longitude 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 15 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 120 41 53 Ag ppm picp 0.045 N 0.045 N 0.045 N 0.045 N 0.045 N Al % icp As ppm icp Au ppm aa 0.002 N Ba ppm icp Be ppm icp Bi ppm picp 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N Ca % icp Cd ppm picp 0.030 N Ce ppm icp
Appendix 1.--continued Sam. ID H012122 H012132 H012142 H012152 H012162 HD12172 HD12182 HD12192 HD12202 HD13002 HD13007 HD13012 HD13022 HD13032 HD14200 HD14210 HD14220 HD14230 HD14240 HD14250 HD14260 HD14270 HD14280 HD14288 HD14300 HD14310 HD14320 HD14330 HD14340 HD14350 HD14360 HD14370 HD14380 HD14390 MK34002 MK34007 MK34012 MK34017 MK34032 MK34042 MK34052 MK34062 MK34072 MK34082 MK34092 Co ppm icp Cr ppm icp Cu ppm icp Eu ppm icp Fe % icp Ga ppm icp Hg ppm aa 0.02 N 0.02 N 0.02 N 0.02 N 0.02 N 0.02 N 0.02 N 0.02 N 0.02 N N 7o icp La ppm icp Li ppm icp LOI % grav 0.00 H Mg % icp Mn ppm icp Mo ppm picp 0.09 H 0.09 H
Appendix Sam. ID HD12122 HD12132 HD12142 HD12152 HD12162 HD12172 HD12182 HD12192 HD12202 HD13002 HD13007 HD13012 HD13022 HD13032 HD14200 HD14210 HD14220 HD14230 HD14240 HD14250 HD14260 HD14270 HD14280 HD14288 HD14300 HD14310 HD14320 HD14330 HD14340 HD14350 HD14360 HD14370 HD14380 HD14390 MK34002 MK34007 MK34012 MK34017 MK34032 MK34042 MK34052 MK34062 MK34072 MK34082 MK34092 Na % icp Nb ppm icp Nd ppm icp Ni ppm icp P % icp Pb ppm icp 1 .--continued S % comb Sb ppm picp 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N Sc ppm icp Si 02 % xrf 0.00 H Sr ppm icp Te ppm aa Th ppm icp
Appendix 1. continued Sam. ID Ti % Tl icp HD12122 HD12132 HD12142 HD12152 HD12162 HD12172 HD12182 HD12192 HD12202 HD13002 HD13007 HD13012 HD13022 HD13032 HD14200 HD14210 HD14220 HD14230 HD14240 HD14250 HD14260 HD14270 HD14280 HD14288 HD14300 HD14310 HD14320 HD14330 HD14340 HD14350 HD14360 HD14370 HD14380 HD14390 MK34002 MK34007 MK34012 MK34017 MK34032 MK34042 MK34052 MK34062 MK34072 MK34082 MK34092 ppm aa 05 N 05 N 05 N 05 N 05 N 05 N 05 N V ppm icp W ppm aa Y ppm Yb ppm Zn ppm icp icp ( icp Geologic unit Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Salt Spring Salt Spring Salt Spring Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Copper Hill Copper Hill Copper Hill Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Slate Slate Slate Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Slate Slate Slate Slate Slate Slate Slate Slate Slate Slate Volcanics Volcanics Volcanics Slate Slate Slate Slate Slate Slate Slate Slate
Appendix 1. continued Sam. ID Latitude Longitude Ag ppm ni rn MK34102 38 00 14 120 41 53 MK34112 38 00 14 120 41 53 MK34117 38 00 14 120 41 53 MK35002 38 00 14 120 41 53 MK35007 38 00 14 120 41 53 MK35012 38 00 14 120 41 53 MK35022 38 00 14 120 41 53 MK35032 38 00 14 120 41 53 MK35042 38 00 14 120 41 53 MK35052 38 00 14 120 41 53 MK35057 38 00 14 120 41 53 MK62002 38 00 14 120 41 53 MK62007 38 00 14 120 41 53 MK62012 38 00 14 120 41 53 MK62022 38 00 14 120 41 53 MK62032 38 00 14 120 41 53 MK62042 38 00 14 120 41 53 MK62052 38 00 14 120 41 53 MK62062 38 00 14 120 41 53 MK62072 38 00 14 120 41 53 MK62082 38 00 14 120 41 53 MK62092 38 00 14 120 41 53 MK62102 38 00 14 120 41 53 MK62112 38 00 14 120 41 53 MK62122 38 00 14 120 41 53 MK62132 38 00 14 120 41 53 MK62142 38 00 14 120 41 53 MK62152 38 00 14 120 41 53 MK62162 38 00 14 120 41 53 MK62172 38 00 14 120 41 53 picp 0.045 N 0.045 N 0.045 N 0.045 N 0.045 N 0.045 N 0.045 N 0.045 N 0.045 N Al % icp As ppm icp Au ppm aa .002 N .002 N .002 N .002 N .002 N .002 N Ba ppm icp Be ppm icp Bi ppm picp 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.7B 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N Ca % icp Cd ppm picp 030 N Ce ppm icp
Appendix 1. continued Sam. ID MK34102 MK34112 MK34117 MK35002 MK35007 MK35012 MK35022 MK35032 MK35042 MK35052 MK35057 MK62002 MK62007 MK62012 MK62022 MK62032 MK62042 MK62052 MK62062 MK62072 MK62082 MK62092 MK62102 MK62112 MK62122 MK62132 MK62142 MK62152 MK62162 MK62172 Co ppm icp Cr ppm icp Cu ppm icp Eu ppm icp Fe % icp Ga ppm icp Hg ppm aa v N h icp La ppm icp Li ppm icp LOI % grav Mg % icp Mn ppm icp Mo ppi picp
Appendix 1. continued Sam. ID MK34102 MK34112 MK34117 MK35002 MK35007 MK35012 MK35022 MK35032 MK35042 MK35052 MK35057 MK62002 MK62007 MK62012 MK62022 MK62032 MK62042 MK62052 MK62062 MK62072 MK62082 MK62092 MK62102 MK62112 MK62122 MK62132 MK62142 MK62152 MK62162 MK62172 Na % icp Nb ppm icp Nd ppm icp Ni ppm icp P % icp Pb ppm icp S % comb Sb ppm picp 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N 0.60 N Sc ppm icp Si 02 % xrf Sr ppm icp Te ppm aa 0.005 N 0.005 N 0.005 N 0.005 N 0.005 N Th ppm icp
Appendix 1. continued Sam. ID MK34102 MK34112 MK34117 MK35002 MK35007 MK35012 MK35022 MK35032 MK35042 MK35052 MK35057 MK62002 MK62007 MK62012 MK62022 MK62032 MK62042 MK62052 MK62062 MK62072 MK62082 MK62092 MK62102 MK62112 MK62122 MK62132 MK62142 MK62152 MK62162 MK62172 Ti % icp Tl ppm 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, aa .05 N .05 N .05 N .05 N .05 N .05 N .05 N ,10 ,05 N ,05 N .05 N V ppm icp W ppm aa .5 N Y ppm icp Yb ppm Zn ppm icp icp Geologic unit Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Salt Spring Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Copper Hill Slate Slate Slate Slate Slate Slate Slate Slate Slate Slate Slate Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics Volcanics
Appendix 2.--MINERALOGICAL DATA FOR SAMPLES OF DRILL CORE OR CUTTINGS, HODSON DISTRICT, CALIFORNIA ["0"=looked for but no meaningful value determined. "---" indicates no analysis. Numbers >100 are estimated by extrapolation] Sam. ID White Kaolinite Chlorite Quartz Orthoclase, Plagioclase Calcite Ankerite Magnesite Pyrite mica HD010D7 HD01012 HD01017 HD01022 HD01032 HD01037 HD01042 HD01047 HD01052 HD01057 HD01062 HD01067 HD01072 HD01077 HD01082 HD01087 HD01092 HD01097 HD01102 HD01107 HD01112 HD01117 HD01122 HD01127 HD01132 HD01137 HD02002 HD02007 HD02012 HD02017 HD02022 HD02032 HD02042 HD02052 HD02062 HD02072 HD02082 HD02092 HD02102 HD02112 HD02122 HD02132 HD02142 HD02152 HD02157
Appendix 2. continued Sam. ID Mica Kaolinite Chlorite Quartz Orthoclase Plagioclase Calcite Ankerite Magnesite Pyrite HD02162 HD02172 HD02182 HD02192 HD02202 HD03002 HD03007 HD03012 HD03022 HD03032 HD03042 HD03052 HD03062 HD03072 HD03082 HD03092 HD03102 HD04002 HD04007 HD04012 HD04022 HD04032 HD04042 HD04052 HD04062 HD04072 HD04082 HD04092 HD04102 HD04112 HD04117 HD05002 HD05007 HD05012 HD05022 HD05032 HD05042 HD05052 HD05062 HD05072 HD05082 HD05092 HD05102 HD05112 HD05117
Appendix 2. continued Sam. ID Mica Kaolinite Chlorite Quartz Orthoclase Plagioclase Calcite Ankerite Magnesite Pyrite HD05122 HD05132 HD05142 HD05152 HD05162 HD05172 HD05182 HD05192 HD05202 HD05212 HD05222 HD05232 HD05242 HD06002 HD06007 HD06012 HD06022 HD06032 HD06042 HD06052 HD06062 HD06072 HD06082 HD06092 HD06097 HD07010 HD07020 HD07030 HD07040 HD07050 HD07059 HD07063 HD07068 HD07080 HD07090 HD07100 HD07110 HD07122 HD07130 HD07140 HD07150 HD08002 HD08007 HD08012 HD08022
Appendix 2. continued Sam. ID Mica Kaolinite Chlorite Quartz Orthoclase Plagioclase Calcite Ankerite Magnesite Pyrite HD08032 HD08042 HD08052 HD08062 HD08072 HD08082 HD08092 HD08102 HD08112 HD08122 HD08132 HD08137 HD09005 HD09010 HD09020 HD09030 HD09040 HD09060 HD09080 HD09100 HD09110 HD09120 HD09130 HD09140 HD09150 HD09164 HD09170 HD09180 HD09200 HD09220 HD09240 HD09260 HD09270 HD09280 HD09290 HD09300 HD09320 HD09330 HD09340 HD09350 HD09370 HD09390 HD09410 HD09430 HD09450
no
Sam. ID Appendix 2.--continued Mica Kaolinite Chlorite Quartz Orthoclase Plagioclase Calcite Ankerite Magnesite Pyrite HD09470 HD09490 HD09510 HD10002 HD10007 HD10012 HD10022 HD10032 HD10042 HD10052 HD10062 HD10072 HD10082 HD10092 H01D102 HD11002 HD11007 HD11012 HD11022 HD11032 HD11042 HD11052 H011062 HD11072 HD11082 HD11092 HD11102 HD11112 HD11122 HD11132 HD11142 HD11152 HD11162 HD11172 HD11182 HD11192 HD11202 HD11212 HD11222 HD12017 HD12022 HD12042 HD12057 HD12082 HD12102
Appendix 2. continued Sam. ID Mica Kaolinite Chlorite Quartz Orthoclase Plagioclase Calcite Ankerite Magnesite Pyrite HD12122 HD12132 HD12142 HD12152 HD12162 HD12172 HD12182 HD12192 HD12202 HD13002 HD13007 HD13012 HD13022 HD13032 HD14200 HD14210 HD14220 HD14230 HD14240 HD14250 HD14260 HD14270 HD14280 HD14288 HD14300 HD14310 HD14320 HD14330 HD14340 HD14350 HD14360 HD14370 HD14380 HD14390 MK34002 MK34007 MK34012 MK34017 MK34032 MK34042 MK34052 MK34062 MK34072 MK34082 MK34092
Sam. ID Appendix 2. continued Mica Kaolinite Chlorite Quartz Orthoclase Plagioclase Calcite Ankerite Magnesite Pyrite MK34102 MK34112 MK34117 MK35002 MK35007 MK35012 MK35022 MK35032 MK35042 MK35052 MK35057 MK62002 MK62007 MK62012 MK62022 MK62032 MK62042 MK62052 MK62062 MK62072 MK62082 MK62092 MK62102 MK62112 MK62122 MK62132 MK62142 MK62152 MK62162 MK62172