Bear Lodge Mountains Thorium and REE Disseminated Deposits (OFR 80-785)
Detailed assessment of the Bear Lodge carbonatite complex in Crook County, Wyoming — one of the largest US REE+Th resources outside Mountain Pass.
Overview
Bear Lodge Mountains Thorium and REE Disseminated Deposits (OFR 80-785) is a 1980 critical-minerals report by M.H. Staatz, N.M. Conklin, C. Bunker & C.A. Bush, preserved in the Mountain Man Mining research library. Detailed assessment of the Bear Lodge carbonatite complex in Crook County, Wyoming — one of the largest US REE+Th resources outside Mountain Pass.
This 1980 document, Bear Lodge Mountains Thorium and REE Disseminated Deposits (OFR 80-785), is preserved in the Mountain Man Mining Library for research and reference. Original source: pubs.usgs.gov.
UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY Gamma-ray spectrometric and semiquantitative spectrographic analytical data of the thorium and rare-earth disseminated deposits in the southern Bear Lodge Mountains, Wyoming. by Mortimer H. Staatz, Nancy M. Conklin, Carl M. Bunker, and Charles A. Bush Open-File Report 80-785 This report is preliminary and has not been edited or reviewed for conformity with U.S. Geological Survey standards.
Introduction The purpose of this report is to present analytical data on 343 samples taken in the thorium and rare-earth disseminated deposits in the southern Bear Lodge Mountains. The results obtained from some or all of these data have been used first in resource calculations made on these deposits (Staatz and others, 1979, p. 23-27) and second in an overall description of these deposits and their surrounding geology (Staatz, in press). The southern Bear Lodge Mountains occupy an area of approximately 110 km just north of the town of Sundance in Crook County, Wyoming. The Bear Lodge dome underlies most of this area. It consists of a core of Tertiary intrusive rocks that has domed up the surrounding sedimentary rocks of Paleozoic and Mesozoic age. The central core of Tertiary intrusive rocks, mainly trachyte and phonolite, was formed by multiple intrusions of alkalic igneous rocks, during a period of at least 20 million years. This alkalic igneous core has an oval outcrop pattern and is exposed over an area about 8.8 km long by 3.5 km wide. Separate, smaller intrusive bodies also intrude the sedimentary rocks along the flanks of the dome. In the southern half of the core, isolated bodies of granite of Precambrian age are surrounded by the Tertiary alkalic rocks. After most of the igneous rocks were intruded the rocks in the central and north-central parts of the core were fractured, altered, and many of the fractures filled with sanidine-rich vein material. The greater part of this material occurs in thin veinlets that, with their surrounding host rock, make up the disseminated deposits. Most of the veinlets range from fracture coatings to veins as much as 0.6 cm thick. The fractures and the emplaced veinlets are numerous, crisscrossing, and strike in many directions. Dips are variable. Some 26 veins, ranging in thickness from 5 cm to 1.7 m, are also found in the area, but they are not included in the disseminated deposits.
The resources of these veins are small, and their description and chemistry have been reported elsewhere (Staatz and others, 1979, p. 17-18; Staatz, in press). Data in table 1 are entirely on samples taken from the disseminated deposits. The veinlets in the disseminated deposits are brown, black, or gray. The color generally depends on the abundance of various iron and manganese oxides. Goethite tends to color the veinlets shades of brown; the presence of pyrolusite, cryptomelane, or finely disseminated specular hematite gives the veinlets a black color. Only where these oxides are lacking, or present in only small amounts does a vein show the color of the other minerals present. The principal thorium and rare-earth minerals are brockite and monazite. In addition, rare earths also occur in bastnaesite and weinschenkite. Sanidine is the principal gangue mineral. Common accessory minerals include magnetite, barite, rutile, and brookite. The size and boundaries of the deposits may be sharp or gradational. Most of the alkalic rocks have been altered after their emplacement and neither the outline nor relative grade is visually determinable. The position and grade of the disseminated deposits can be determined by either chemical or radiometric analyses. In order to determine the general outline of the disseminated deposits, radiometric readings were taken over the entire igneous central core of the Bear Lodge dome, an area of approximately 30 km , with a Mount Sopris scintillation counter. A contour map made from some 537 readings was compiled. Individual readings in this survey ranged from 125 to 2,000 counts per second. The area of principal interest, however, lies within the 400 counts-per-second contour. This contour, shown on figure 1, was used to select the area to be sampled in detail.
Methods of present study All samples analyzed were taken either of bed rock or of dump material that had been dug out of bed rock. The greater part of the alkalic intrusive rocks is covered by several centimeters to a few meters of overburden. Outcrops are common along ridges. Many bulldozer trenches were made in the area in the early 1950's during exploration for rare earth-veins. In addition, there are scattered hand-dug pits that were made in prospecting for other metals during the first part of the twentieth century. Our sampling was done principally in the bulldozer trenches, either along the sides of the trenches or from the dumps. In addition we also sampled outcrops exposed in small hand-dug pits, along ridges, and in road cuts. All samples were chip samples and were taken so as to represent the average disseminated deposit at the sample locality. Veins 5 cm or more thick are widely scattered, few in number, and were not included in sampling. Although these veins would undoubtedly be mined along with the smaller veinlets in any mining operation, their relatively small volume and much higher grade would disproportionate y affect the grade of the disseminated deposits. Most of the samples lie within the 400 count-per-second contour. The locations of all the samples taken are shown on figure 1. The samples weighed 2 to 3 kg, and were ground to -20 mesh. A 600-gm split was measured out of every sample and used by Bunker and Bush to analyze for thorium (Th), radium equivalent uranium (RaeU), and potassium (K) on a gamma-ray spectrometer. From a total of about 340 samples, 192 samples were chosen for semiquantitative spectrographic analyses by Conklin. These samples were selected to give a representative geographic coverage. A split of approximately 150 g was taken for this purpose and ground to -150 mesh. In addition, the various mineral components of some samples were separated by a
heavy liquid and a magnetic separator. The various minerals were identified by X-ray diffraction, and the results of the mineralogic work are given in a separate report (Staatz, in press).
Chemical Analyses The results of the chemical analyses are given in table 1. Thorium, uranium, and potassium were analyzed by a quantitative gamma-ray spectrometer that measures over 512 channels with a 12.7 cm diameter by 10.2 cm thick Nal crystal. This method has a precision of ±3 percent. Thorium content of the 343 samples ranges from 9.3 to 990 parts per million (ppm). Of these samples, 265 contained at least 50 ppm thorium. The uranium content of these same samples ranges from 1.8 to 346 ppm. Only five samples, however, contained as much as 80 ppm uranium and only one sample contained more than 120 ppm. All other elements analyzed were done by semiquantitative spectrographic analyses. Results were grouped into several levels bracketed by 1.2, 0.83, 0.56, 0.38, 0.26, 0.18, 0.12, and so forth, and then reported as mid-values between these brackets. Thus, the numbers reported would be 1, 0.7, 0.5, 0.3, 0.2, 0.15, 0.1, and so forth. The precision of a reported value is approximately plus or minus one level. The £ower limit of detection varies from element to element. This lower limit is generally a constant for any specific element, but in some samples large amounts of another element will produce interfering lines on the spectrographic plate and raise the limit of detection. This accounts for the variation in the lower limit of detection shown for some elements in table 1. The original semiquantitative spectrographic analyses furnished data on 57 elements. We have reported on 34 of these elements (table 1). We have eliminated a few like silicon and aluminum, which occur in all samples in amounts greater than 10 percent, as well as many elements, such as arsenic, boron, gold, antimony, and tungsten, which occur in insignificant amounts in all samples. In addition we give a value for total rare earths, which is the sum of all individual rare earths whose values lay above the limit of detection. Rare earths are probably the
most economically significant metals in these deposits. The total rare earth content of the 192 samples ranges from 47 to 27,145 ppm. Of these samples, 171 contain in excess of 500 ppm total rare earths, and 54 contain in excess of 5,000 ppm.
Present work and acknowledgments The first 38 samples listed in table 1 were collected by Staatz between 1974 and 1977, while he was making a geologic map of the area. The rest of the samples were taken during the summer of 1979 during a detailed study of the disseminated deposits. During the summer of 1979, Staatz was assisted in the sampling program for various periods by Russell F. Dubiel, Timothy E. Mower, and David F. Piske, Jr. Sample preparation was carried out by Isabelle K. Brownfield, Timothy E. Mower, and William F. Robinson IV.
References cited Staatz, M. H., Armbrustmacher, T. J., Olson, J. C., Brownfield, I. K., Brock, M. R., Lemons, J. F., Jr., Coppa, L. V., and Clingan, B. V., 1979, Principal thorium resources in the United States: U.S. Geological Survey Circular 805, 42 p. Staatz, M. H., in press, Geology and description of thorium and rare-earth deposits in the southern Bear Lodge Mountains, northeastern Wyoming: U.S. Geological Survey Professional Paper, in press.
Table [Symbols: N.D. - Locality No. Sample Mo. Element Thorium1 Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium2 Terbium Dysprosium Holmium Erbium2 Thulium2 Ytterbium2 Lutetium Yttrium2 Total rare earths Barium2 Beryllium Bismuth2 Copper Lead 2 Manganese Molybdenum Niobium2 Strontium2 Tin2 Vanadium Zinc2 Zirconium MHS- 1. — Chemical analyses of samples from the principal Tertiary in the southern Bear Lodge Mountains, not determined; - less than value indicated; - greater MHS- MHS- MHS- MHS- MHSintrusive mass than value indicated] MHS- MHS- MHS- In parts per million N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D, N.D. N.D, N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. 14 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <20 <50 <20 <30 2,335 2,000
3,000 1,000 <10 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D., N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. 1,500 1,500 1,500 <50 <20 <30 5,440 3,000 1,500 <10 1,000 1,500 <50 <20 <50 <20 <30 3,803 1,500 <10 1,500 <10 In percent Calcium2 Iron2 Magnesium Phoaphorus Potassium Sodium Titanium2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.J. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. >10 <.2 <.2 Analyzed by gamma-ray spectrometer by C. M. Bunker and C. A. Bush. Analyzed by semi-quantitative six-step spectrographic method by N. M. Conklin.
Table 1. — Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued [Symbols: H.D. - not determined; - less than value indicated; - greater than value Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium o Gadolinium Terbium Dysprosium Holmium Erbium Thulium2 Ytterbium2 Lutecium Yttrium2 Total rare earths Barium2 Beryllium2 Bismuth Copper Lead2 Manganese Molybdenum Niobium2 Strontium Tin2 Vanadium Zinc2 Zirconium 15U a.u.
Mhs-
MHS- MHS- MHS- MHS- MHS- MHSindicated 1 MHS- MHS- In parts per million <50 <50 <20 <50 <20 <30 1,500 1,000 1,500 <10 N.D. H.D. N.D. N.D. N.D. N.D. H.D. H.D. H.D. H.D. N.D. N.D. N.D. N.D. H.D. H.D. N.D. H.D. N.D. S.D. H.D. S.D. N.D. S.D. S.D. N.D. N.D. S.D. S.D. 1,500 2,000 1,500 H.D. <20 <50 <20 <30 6,480 3,000 1,000 <10 H.D. N.D. N.D. N.D. H.D. S.D. S.D. N.D. N.D. H.D. S.D. N.D. N.D. H.D. N.D. N.D. N.D. N.D. S.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. H.D. H.D. N.D. H.D. H.D. H.D. N.D. H.D. H.D. H.D. N.D. H.D. N.D. N.D. N.D. N.D. S.D. N.D. N.D. N.D. N.D. N.D. N.D. S.D. N.D. S.D. H.D. H.D. N.D. H.D. H.D. S.D. H.D. H.D. S.D. S.D. H.D. N.D. H.D. N.D. N.D. N.D. N.D. N.D. N.D. H.D. H.D. S.D. N.D. N.D. N.D. N.D. H.D. S.D. N.D. H.D. N.D. H.D. N.D. H.D. H.D. N.D. N.D. H.D. N.D. H.D. H.D. H.D. H.D. N.D. H.D. N.D. N.D. N.D. N.D. S.D. N.D. N.D. N.D. S.D. N--D. N.D. N.D. N.D. H.D. N.D. N.D. H.D. N.D. S.D. N.D. N.D. N.D. N.D. N.D. H.D. N.D. N.D. H.D. S.D. N.D. N.D. H.D. N.D. H.D. H.D. N.D. N.D. N.D. N.D. S.D. N.D. N.D. H.D. H.D. H.D. N.D. S.D. N.D. N.D. N.D. N.D. N.D. N.D. S.D. S.D. N.D. N.D. N.D. N.D. N.D. S.D. S.D. N.D. N.D. N.D. S.D. N.D. S.D. N.D. N.D. N.D. N.D. H.D. In percent Calcium Iron2 Magnesium Phosphorus Potassium Sodium Titanium2 <.2 N.D. H.D. N.D. H.D. H.D. H.D. <10 <.2 H.D. N.D. N.D. N.D. H.D. N.D. N.D. N.D. H.D. N.D. H.D. N.D. N.D. N.D. N.D. N.D. H.D. N.D. H.D. H.D. S.D. N.D. H.D. N.D. H.D. N.D. H.D. H.D. H.D. S.D. N.D. N.D. N.D. N.D. N.D. N.D. (0
Table 1 [Symbols: N.D. - Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium2 Praesodymium Neodymium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium" Thulium Ytterbium2 Lutetium Yttrium2 Total rare earths Barium Beryllium Bismuth2 Copper Lead 2 Manganese Molybdenum Niobium2 Strontium Tin 2 Vanadium Zinc 2 Zirconium MHS- ..—Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued not determined; - less than value indicated; - greater than value indicated ] MHS- MHS- MHS- MHS- MHS- MHS- MHS- MHS- In parts per million N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. 1,000 <50 <20 <50 <20 <30 2,673 5,000 <10 3,000 1,500 1,500 1,500 1,500 <20 <50 <20 <30 5,153 3,000 7,000 1,500 <10 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D* N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D.
N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. S.D. In percent Calcium Iron 2 Magnesium Phosphorus Potassium 1 Sodium Titanium2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D.
Table l.-Cheical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued [Symbols: N.D. - not determined; - less than value indicated; - greater than value indicated] Locality No. Sample No. Element Thorium1 Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium" Terbium2 Dysprosium" Holmium Erbium2 Thulium Ytterbium2 Lutetium2 Yttrium2 Total rare earths Barium Beryllium Bismuth2 Copper Lead2 Manganese o Molybdenum* Niobium2 Strontium Tin2 Vanadium Zinc2 Zirconium MHS- JM-, , MHS- BL- MHS- MHS- BL-4 MHS- MHS- MHS- In parts per million 1,500 1,500 1,500 <20 <50 <20 <30 5,457 3,000 <10 2,000 <10 1,500 <50 <20 <50 <20 <30 3,342 2,000 <10 1,500 <10 7,000 7,000 3,000 <50 <20 <50 <20 <30 18,665 7,000 7,000 2,000 3,000 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. 7,000 10,000 1,000 7,000 1,500 <50 <20 <30 26,845 7,000
2,000 <10 2,000 7,000 1,500 <20 <50 <20 <30 11,260 2,000 1,000 <10 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. 1,500 1,500 <50 <20 <50 <20 <30 4,123 3,000 3,000 3,000 <10 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N'.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. In percent Calcium Iron2 Magnesium2 Phosphorus Potassium Sodium Titanium2 <.2 <.2 >10 N.D. N.D. N.D. N.D. N.D. N.D. <-2 >10 <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D.
Table [Symbols: N.D. - Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodyraium Neodymium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium2 Thulium Ytterbium2 Lutetium Yttrium2 Total rare earths Barium Beryllium Bismuth2 Copper Lead2 Manganese Molybdenum Niobium2 Strontium Tia2 Vanadium Zinc 2 Zirconium MHS- ISO <50 <50 <20 <50 <20 <30 <10 1,500
1,500 <10 1- — Chemical analyses of samples from che principal Tertiary in the southern Bear Lodge Mountains. - Continued not determined; - Isss chan value indicated; - greater MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. S.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 3,000 <10 7,000 <10 MHS- In parts N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. S.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHSper million N.D. N.D. N.D. N.D. N.D. N.D. N.D. S.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D! N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 2,000 <10 5,000 <10 intrusive mass than value indicated] MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 1,500 <10 3,000 <10 In percent Calcium2 Iron" Magnesium Phoephorus Potassium Sodium Titanium2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <-2
Table 1- — Chemical analyses of samples from the princi in the southern Bear Lodge Mountains. [Symbols: N.D. - not determined; - less than value indicated; Locality Ho. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymlum Samarium Europium Gadolinium Terbium Dysprosium Holmiuffl Erbium2 Thulium Ytterbium2 Lutecium Yttrium2 Total rare earths Barium Beryllium Bismuth2 Copper Lead2 Manganese Molybdenum Niobium2 Strontium Tin2 Vanadium Zinc 2 Zirconium MHS- N.D. N.D. N.D. H.D. H.D. N.D. H.D. H.D. H.D. H.D. N.D. H.D. H.D. N.D. N.D. H.D. N.D. N.D. H.D. H.D. N.D. N.D. N.D. N.D. N.D. N.D. H.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 3,000 <10 7,000 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. H.D. MHS- In parts N.D. N.D. N.D. N.D. N.D. H.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. H.D. N.D. H.D. H.D. MHSper million <50 <50 <20 <50 <20 <30 1,500
<10 3,000 <10 .pal Tertiary intrusive mass - Continued - greater then value indicated] MHS- <50 <50 <20 <50 <20 <30 1,500 3,000 <10 MHS- <50 <20 <50 <20 <30 3,000 1,500 3,000 <10 MHS16-79 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 3,000 <10 3,000 <10 In percent Calcium2 Iron2 Magnesium Phosphorus Potassium Sodium2 Titanium2 H.D. N.D. H.D. N.D. H.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. H.D. <.2 <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2
Table 1- —Chemical analyses of samples frot in the southern Bear Lodge (Symbols: N.D. - not determined; - less than value Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium Terbium Dysprosium" Holmium Erbium2 Thulium Ytterbium" Lutecium Yttrium2 Total rare earths Barium" Beryllium Bismuth 2 Copper Lead2 Manganese Molybdenum Niobium2 Strontium Tin2 Vanadium Zinc 2 Zirconium MHS- MHS- MHS- MHS- i the prince Mountains . indicated ; MHS- .pal Tertiary intrusive mass - Continued - greater than value indicated] MHS- MHS- MHS- MHS- In perts per million <50 <70 <20 <50 <20 <30 <10 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <50 <50 <20 <50 <20 <30 <LO N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <50 <20 <50 <20 <30 t <10 <50 <50 <20 <50 <20 <30 <10 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N,D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. S.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. In percent Calcium2 Iron2 Magnesium Phosphorus Potassium1 Sodium Titanium ' <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D.
Table [Symbols: N.D. - Locality Ho. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium2 Thulium2 Ytterbium2 Lutetium Yttrium2 Total rsre earths Barium Beryllium Bismuth2 Copper Lead2 Manganese Molybdenum Niobium2 Strontium Tin2 Vanadium Zinc 2 Zirconium MHS- 1. —Chemical analyses of samples from the princi in the southern Bear Lodge Mountains, not determined; - lese than value indicated; MHS- MHS- MHS- MHS- .pal Tertiary intrusive maes - Continued - greater than value Indicated] MHS- MHS- MHS- MHS- In parts per million N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. S.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <20 <50 <20 <30 1,827 3,000 <10 10,000 5,000 <10 3,000 3,000 1,500 <20 <50 <20 <30 8,527 3,000 <10 10,000 3,000 <10 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D.f N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. 5,000 7,000 1,500 7,000 1,500 <20 <50 <20 <30 22,965 2,000 <10 5,000 <10 <50 <50 <20 <50 <20 <30 3,000 <10 7,000 <10 5,000 3,000 5,000 <20 <50 <20 <30 17,580 7,000 <10 10,000 2,000 <10 2,000 1,500 <20 <50 <20 <30 3,343 3,000 <10 7,000 <10 In percent Calcium Iron2 Magnesium Phosphorue Potassium Sodium Titanium2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 >10 <.2
a
Table 1.—'Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains* - Continued [Symbols: N.D. - not determined; - less than value indicated; - greater than value indicated] Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymlum Neodymium Samarium Europium Gadolinium Terbium Dysprosium" Holmium Erbium Thulium Ytterbium2 Lutetium" Yttrium2 Total rare earths Barium Beryllium Bismuth Copper Lead2 Manganese Molybdenum Niobium2 Strontium Tin2 Vanadium Zinc 2 Zirconium MHS- MHS- MHS- MHS- MHS- MHS- MHS- MHS- MHS- In parts per million N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. 3,000 5,000 3,000 <20 <30 1,000 14,120 5,000 7,000 5,000 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D! N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <50 <50 <20 <50 <20 <30 1,500 <10 2,000 <10 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. 1,500 1,500 <70 <20 <50 <20 <30 4,230 3,000 <10 3,000 3,000 <iO In percent Calcium Iron2 Magnesium Phosphorus Potassium Sodium2 Titanium N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <.2 >10 N.D. N.D. N.D. N.D. N.D. N.D. <.2
Table 1- — Chemical analyses of samples from the prince in the southern Bear Lodge Mountains. [Symbols: H.D. - not determined; - less than value indicated; Locality Ho. Sample Ho. Element Thorium Uranium Lanthanum Cerium Praesodymium Heodymium Samarium Europium Gadolinium2 Terbium2 Dysprosium Ho Imium Erbium Thulium2 Ytterbium2 Lutetium Yttrium2 Total rare earths Barium Beryllium Bismuth Copper Lead2 Manganese Molybdenum Niobium2 Strontium Tin2 Vanadium Zinc2 Zirconium Calcium Iron2 Magnesium Phosphorus Potassium Sodium2 Titanium2 MHS- MHS- MHS- MHS- MHS- Lpal Tertiary intrusive mass - Continued - greater than value indicated] MHS- MHS- MHS- MHS- In parts per million N.D. N.D. N.D. H.D. N.D. H.D. H.D. H.D. N.D. N.D. N.D. N.D. H.D. H.D. N.D. N.D. N.D. H.D. H.D. H.D. N.D. H.D. N.D. H.D. N.D. N.D. N.D. N.D. N.D. N.D. H.D. N.D. N.D. N.D. N.D. 1,000 1,500 1,500 <70 <20 <50 <20 <30 4,757 7,000 <10 1,500 2,000 <.2 1,500 1,500 1,500 <20 <20 <30 5,527 3,000 <10 3,000 3,000 <10 <.2 N.D. N.D. H.D. N.D. H.D. N.D. N.D. H.D. H.D. H.D. N.D. N.D. N.D. N.D. H.D. H.D. H.D. H.D. H.D. H.D. H.D. H.D. N.D. N.D. N.D. H.O. N.D. H.D. N.D. In percent H.D. N.D. N.D. H.D. H.D. N.D. 1,500 1,500 <70 <20 <50 <20 <30 4,227 5,000 <10 1,500 2,000 <10 <.2 H.D. H.D. N.D. H.D. N.D. H.D. N.D. N.D. N.D. N.D. N.D. N.D. H.D. N.D. N.D. N.D. N.D. H.D. N.D. N.D. H.D. N.D. N.D. H.D. H.D. N.D. N.D. N.D. N.D. N.D. N.D. H.D. N.D. H.D. H.D. 3,000 3,000 3,000 <20 <20 <30 11,207 10,000 1,500 1,500 <.2 2,000 3,000 1,500 <70 <20 <50 <20 <30 7,327 5,000 <10 3,000 2,000 <10 <.2 5,000 5,000 5,000 <70 <20 <20 <30 16,807 7,000 <10 5,000 2,000 <10
Table 1. — Chemical analyses of samples from the princi in the southern Bear Lodge Mountains- [Symbols: N.D. - not determined; - less than value Indicated; Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Yttrium2 Total rare earths Barium2 Beryllium Bismuth'" Copper Lead2 Manganese Molybdenum Niobium2 Strontium Tin2 Vanadium2 Zinc2 Zirconium MHS- MHS- US MHS- MHS- MHS- .pal Tertiary intrusive - Continued - greater than value MHS- MHSmass indicated] MHS- MHS- In parts per million 2,000 3,000 1,500 <50 <20 <50 <20 <30 7,325 3,000 <10 1,500 <15 N.O. N.D. N.O. N.O. N.D. N.D. N.O. N.O. N.O. N.O. N.O. N.O. N.D. N.O. N.O. N.D. N.D. N.O. N.O. N.O. N.O. N.D. N.O. N.O. N.O. N.D. N.D. N.O. N.O. N.O. N.O. N.O. N.D. N.O. N.O. N.O. N.D. N.O. N.D. N.O. N.O. N.O. N.D. N.D. S.D. N.D. N.O. N.D. S.D. N.D. S.D. N.O. N.D. N.O. N.D. N.O. N.O. N.O. 3,000 5,000 3,000 <20 <20 <30 13,630 7,000 <10 10,000 3,000 N.D. N.O. N.O. N.D. N.D. N.D. N.O. N.O. N.O. N.O. N.O. N.O. N.O. N.O. N.O. N.O. N.O. N.O. N.O. N.O. N.D. N.D. N.D. N.D. N.O. N.O. N.O. N.O. N.D. S.2 1,500 1,000 <70 <20 <50 <20 <30 3,777 3,000 <10 5,000 1,000 <10 N.O. N.O. N.O. N.O. N.O. N.O. N.O. N.O. N.O. N.O. N.O. N.O. N.O. N.D. N.O. N.O. N.O. N.O. N.D. N.O. N.D. N.O. N.O. N.O. N.O. N.D. N.O. N.O. N.O. N.O. N.O. N.D. N.O. N.O. N.O. N.O. N.O. N.O. N.O. N.O. N.D. N.O. N.O. N.O. N.O. N.D. N.D. N.O. N.O. N.D. N.O. N.O. N.D. N.D. N.O. N.O. N.O. N.D. N.O. N.D. N.D. N.D. N.D. N.D. N.O. N.O. N.O. N.D. N.O. N.D. N.D. N.D. N.O. N.D. N.O. N.D. N.O. N.D. N.O. N.D. N.O. N.D. N.D. N.O. N.O. N.D. N.D. In percent Calcium Iron2 Magnesium Phosphorus Potassium Sodium2 Titanium2 >10 <.2 N.D. N.O. N.O. N.O. N.O. N.O. N.O. N.D. N.O. N.O. N.O. N.D. N.O. N.D. N.D. N.D. N.D. N.O. <.2 N.D. N.D. N.D. N.O. N.O. N.D. N.D. N.O. N.O. N.D. N.O. N.D. N.O. N.O. N.D. N.D. N.D. N.D. Jc>
Table I. — Chemical analyses of samples from the in the southern Bear Lodge Mountains. [Symbols: N.D. - not determined; - less than value indicated; Locality No. Sample No. Clement Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium2 Thulium2 Ytterbium2 Lutetium Yttrium2 Total rare earths Barium" Beryllium Bismuth2 Copper Lead2 Manganese Molybdenum Niobium2 Strontium Tin2 Vanadium Zinc2 Zirconium Calcium2 Iron2 Magnesium Phosphorus Potassium Sodium Titanium2 MHS- MHS- MHS- MHS- MHS- .pal Tertiary intrusive - Continued - greater than value MHS- MHSmass indicated] MHS- MHS- In parts per million 5,000 7,000 3,000 <20 <20 <30 17,015 3,000 <10 100,000 2,000 <15 1,500 >10 <.2 3,000 3,000 3,000 <20 <50 <20 <30 11,115 7,000 <10 2,000 2,000 <15 <.2 N.D. N.O. N.D. N.O. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. In percent N.D. N.D. N.D. N.D. N.D. N.D. 2,000 2,000 1,500 <20 <50 <20 <30 6,555 3,000 t <10 1,500 <15 <.2 5,000 7,000 3,000 <20 <30 1,000 17,860 7,000 <15 2,000 <-2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D, N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. f N.D. N.D. 5,000 7,000 7,000 1,000 <20 <20 <30 22,015 7,000 1,500 30,000 2,000 <15 1,500 >10
[Symbols Locality No. Sample No. Clement Thorium Uranium Lanthanum Cerium" Praesodymium Neodymium Samarium Europium Gadolinium" Terbium Dysprosium Ho 1m turn Erbium Thulium Ytterbium Lutetium Yttrium2 Total rare earths Barium Beryllium Bismuth Copper Lead2 Manganese Molybdenum Niobium2 Strontium2 TinVanadium Zinc2 Zirconium Table 1. — Chemical analyses of in the southern : N.D. - not determined; MHS- 3,000 7,000 3,000 <20 <20 <30 15,165 7,000 30, 000 2,000 <15 MHS- 3,000 3,000 1,500 <20 <20 <30 8,527 7,000 <10 3,000 2,000 <15 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. samples frc Bear Lodge than value MHS- In parts <50 <50 <20 <20 <30 1,433 3,000 <10 2,000 5,000 <10 the princ: Mountains indicated; MHSper million N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D*. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. Ipal Tertiary intrusive - Continued - greater than value MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- 3,000 5,000 3,000 <20 <30 1,000 14,000 10,000 <15 10,000 2,000 mass indicated] MHS- 1,500 2,000 1,500 <20 <50 <20 <30 6,130 7,000 <10 10,000 1,000 MHS- 3,000 3,000 3,000 <20 <50 <20 <30 10,435 7,000 <15 15,000 2,000 In percent Calcium Iron2 Magnesium Phosphorus Potassium Sodium2 Titanium >10 <.2 <.2 ,3 N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2
Table 1.— Chemical analyses of samples from the prince in the southern Bear Lodge Mountains. [Symbols: N.D. - not determined; - less than value indicated; Locality No. Sample No. Element Thorium Uranium Lanthanum" Cerium Praeaodymium Neodymium Samarium Europium Gadolinium" Terbium Dysprosium Holmium Erbium Thulium2 Ytterbium2 Lutecium Yttrium2 Total rare earths Barium Beryllium Bismuth 2 Copper Lead2 Manganese Molybdenum" Niobium2 Strontium Tin2 Vanadium2 Zinc 2
Zirconium" MHS- MHS- MHS- MHS- MHS- .pal Tertiary intrusive - Continued - greater than value MHS- MHSmass indicated] MHS- MHS- In parts per million 1,500 1,500 <20 <50 <20 <30 4,727 7,000 5,000 2,000 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <50 <20 <50 <20 <30 1,677 3,000 <10 3,000 1,500 <10 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D/ N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. 1,500 2,000 1,500 <20 <50 <20 <30 5,830 7,000 2,000 <15 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. In percent Calcium2 Iron" Magnesium Phoephorus Potassium Sodium2 Titanium2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. >10 <.2 N.D. N.D. N.D. N.D. N.D. N.D.
Table 1. — Chemical analyses of samples from the pcincl in the southern Bear Lodge Mountains* [Symbols: N.D. - not determined; - less than value indicated; Locality No. Sample No.
Element Thorium Uranium Lanthanum Cerium Fraesodymium Neodymium Samarium Europium Gadolinium Terbium Dysprosium Holmium2 Erbium2 Thulium Ytterbium2 Lutecium Yttrium2 Total rare earths Barium Beryllium Bismuth Copper Lead2 Manganese Molybdenum Niobium2 Strontium Tin 2 Vanadium Zinc 2 Zirconium MHS- MHS- MHS- MHS- MHS- .pal Tertiary intrusive mass - Continued - greater than value indicated] MHS- MHS- MHS- MHS- In parts per million 1,500 <70 <20 <50 <20 <50 3,347 5,000 <10 2,000 <15 <70 <20 <50 <20 <30 2,707 7,000 <10 2,000 5,000 N.O. N.D. N.D. N.O. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. H.D. N.D. N.D. N.D. N.D. 1,500 1,500 <50 <20 <30 1,000 5,710 5,000 <15 30,000 2,000 <20 <50 <20 <30 1,905 3,000 t <10 5,000 1,500 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <50 <70 <20 <50 <20 <30 1,500 <10 1,500 1,500 <10 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <70 <20 <50 <20 <30 3,000 <10 2,000 2,000 <15 In percent Calcium Iron2 Magnesium Phosphorus Potassium Sodium2 Titanium >10 <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2
Table I.—Chemical analyses of samplee from the principal Tertiary iatrueive mass in the southern Bear Lodge Mountains* - Continued [Symbolsr N.D. - not determined; - lees than value indicated; - greater than value indicated] Locality No. Sample No. Elsment Thorium Uranium Lanthanum Cerium2 Praesodymium Neodymium Samarium Europium Gadolinium2 Terbium Dysprosium Holmium Erbium2 Thulium Ytterbium2 Lutetium Yttrium2 Total rare earths Barium2 Beryllium Bismuth Copper Lead2 Manganese Molybdenum" Niobium2 Strontium" Tin2 Vanadium2 Zinc2 Z irconium Calcium Iron2 Magnesium Phosphorus Potassium Sodium Titanium2 MHS- MHS- MHS- MHS- MHS- MHS- MHS- MHS- MHS- In parts per million <20 <50 <20 <30 1,330 3,000 3,000 1,000 <.2 <70 <20 <50 <20 <30 3,000 1,500 1,000 <15 <.2 <70 <20 <50 <20 <30 1,130 3,000 7,000 1,500 <.2 <20 <50 <20 <30 1,355 3,000 3,000 1,500 <10 In percent <.2 <20 <50 <20 <30 2,085 3,000 f 3,000 3,000 <.2 1,500 1,500 <70 <20 <50 <20 <30 4,457 3,000 15,000 3,000 <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. X.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <70 <50 <50 <20 <50 <20 <30 1,373 3,000 3,000 7,000 <10 <.2 1,500 1,500 1,000 <20 <50 <20 <30 4,935 3,000 <10 7,000 1,500 <10
Table 1.—Chemical analyses of samples from che principal Tertiary intrusive mass in the southern Bear Lodge Mountains* - Continued [Symbols: N.O. - not determined; - less than value indicated; - greater than value indicated] Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium ?raesodymium~ Neodymium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutecium Yttrium Total rare earths Barium Beryllium Bismuth Copper Lead2 Manganese Molybdenum Niobium2 Strontium" Tin2 Vanadium Zinc2 Zirconium MHS- 3,000 3,000 3,000 <20 <50 <20 <30 10,585 3,000 <10 5,000 1,500 <10 MHS- 1,500 2,000 1,500 <50 <20 <50 <20 <30 5,547 3,000 3,000 <15 MHS- <50 <20 <50 <20 <30 2,097 5,000 ' <10 3,000 1,500 1,500 MHS- In perts N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHSper million <70 <50 <20 <50 <20 <30 1,127 3,000
<10 3,000 1,500 <10 MHS- 1,500 1,000 <70 <50 <20 <50 <20 <30 3,325 3,000
<10 3,000 <10 MHS- 3,000 7,000 7,000 1,500 <20 <30 20,095 7,000 5,000 1,000 3,000 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- 3,000 3,000 2,000 <20 <20 <30 9,030 5,000 1,500 2,000 <10 In percent Calcium2 Iron2 Magneeium Phosphorus Potassium Sodium Titanium <.2 <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D.
Table 1.— Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued [Symbols: N.D. - not determined; - less than value indicated; - greater than value indicated] Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium2 Terbium Dysprosium Holmium Erbium Thulium Ytterbium2 Lutecium Yttrium2 Total rare earths Barium Beryllium Bismuth Copper Lead2 Manganese Molybdenum Niobium2 Strontium2 Tin2 Vanadium Zinc 2 Zirconium ISO MHS- N.O. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <70 <20 <50 <20 <30 1,877 3,000 <10 7,000 3,000 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- In parts 1,500 1,500 1,000 <70 <20 <50 <20 <30 4,577 3,000 <10 3,000 <10 MHSper million 1,000 <50 <20 <50 <20 <30 2,345 1,500 t <10 2,000 <10 MHS- 3,000 3,000 3,000 <70 <20 <50 <20 <30 10,107 1,500 <10 3,000 <10 MHS- 3,000 3,000 3,000 <20 <20 <30 10,330 7,000 3,000 3,000 <10 MHS- 2,000 3,000 1,500 <50 <20 <50 <20 <30 6,993 3,000 3,000 <15 MHS- N.D. N.D. N.D N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. In percent Calcium2 Iron2 Magnesium Phosphorus Potassium1 Sodium Titanium2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 <.2 <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D.
Table [Symbols: N.D Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium Terbium Dysprosium Eolmlum Erbium Thulium Ytterbium2 Lutetium Tttrium2 Total rare earths Barium Beryllium Bismuth Copper Lead2 Manganese Molybdenum Niobium2 Strontium Tin2 Vanadium2 Zinc2 Zirconium MHS- 1,500 2,000 1,500 <20 <20 <30 5,877 3,000 <10 1,500 <10 1.— Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued . - not determined; - less than value indicated; - greater than value indicated] MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D.
N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- N.D. S.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- In parts N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHSper million 1,500 <70 <20 <50 <20 <30 4,257 3,000
1,500 <10 MHS- 2,000 3,000 3,000 <50 <20 <30 10,335 7,000 <10 3,000 1,500 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. S.D. S.D. N.D. N.D. N.D. MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 1,500 <10
1,500 <10 In percent Calcium2 Iron2 Magnesium Phosphorus Potassium Sodium Titanium2 <-2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D.
Table 1.— Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued [Symbols: N.D. - not determined; - lese than value indicated; - greater than value indicated] Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium2 Thulium2 Ytterbium2 Lutetium" Yttrium2 Total rare earths Barium Beryllium Bismuth 2 Copper Lead2 Manganese" Molybdenum Niobium2 strontium Tin2 Vanadium2 Zinc2 Zirconium MHS- N.D. S.D. N.D. S.D. N.D. S.D. N.D. S.D. N.D. S.D. N.D. S.D. N.D. S.D. N.D. N.D. N.D. S.D. S.D. N.D. N.D. N.D. S.D. S.D. S.D. S.D. S.D. N.D. N.D. HHS- <50 <50 <20 <50 <20 <30 <10 <10 1,000 MHS- <70 <50 <50 <20 <50 <20 <30 2,000 , <io 1,500 1,500 <10 MHS- In parts <50 <50 <20 <50 <20 <30 3,000 <10 3,000 <10 MHSper million N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D f N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 3,000 <10 3,000 3,000 <10 MHS- <50 <50 <20 <50 <20 <30 3,000 <10 1,500 ' 20 3,000 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. ' N.D. N.D. N.D. S.D. S.D. N.D. N.D. N.D. N.D. MHS- 300, <50 <50 <20 <50 <20 <30 3,000 <10 3,000 3,000 <10 In percent Calcium2 Iron2 Magnesium Phosphorus Potassium1 Sodium Titanium2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 N.D. N.D. N.D. S.D. N.D. N.D. <.2
Table [Symbols: N.D Locality No. Sample No. Element Thorium Uranium Lanthanium Cerium Praesodymium Neodymium Samarium Europium Gadolinium' Terbium
Dysprosium" Holmium Erbium2 Thulium2 Ytterbium2 Lutetlum Yttrium2 Total rare earths Barium Beryllium Bismuth Copper Lead2 Manganese Molybdenum Niobium2 Strontium2 Tin2 Vanadium Zinc2 Zirconium MHS- <50 <50 <20 <50 <20 <30 1,500 <10 1,500 <10 1.— Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued . - not determined; - less than value indicated; - greater than value indicated] MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- 1,500 1,500 1,500 <20 <20 <30 5,385 3,000 7,000 1,500 <15 MHS147-79 In parts <50 <20 <50 <20 <30 2,447 5,000 <10 3,000 3,000 <10 MHSper million <50 <20 <50 <20 <30 1,197 3,000
<10 3,000 3,000 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. , N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. "N.D. N.D. N.D. N.D. N.D. N.D. MHS- 1,500 2,000 2,000 <20 <20 <30 7,027 7,000 1,000 3,000 1,500 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. In percent Calcium2 Iron2 Magnesium Phosphorus Potassium1 Sodium Titanium2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. >10 <.2 N.D. N.D. N.D. N.D. N.D. N.D.
Table [Symbols: N.D Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium Terbium Dysproeium' Holmium Erbium2 Thulium2 Ytterbium2 Lutecium Yttrium2 Total rare earths Barium Beryllium2 Bismuth Copper Lead2 Manganese Molybdenum2 Niobium2 Strontium Tin2 Vanadium Zinc2 Zirconium MHS- 1,500 <50 <20 <50 <20 <30 3,377 7,000 <10 2,000 1,500 <10 1.— Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued - not determined; - less than value indicated; - greater than value indicated] MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.O. N.O. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- 3,000 3,000 2,000 <20 <20 <30 9,135 3,000 1,000 15,000 1,500 <10 MHS- In parts ' 112 1,500 1,500 1,500 <50 <20 <20 <30 5,227 7,000 15,000 3,000 <10 MHSper million N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. , N.D. N.D. N.D. N.O. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <70 <50 <20 <50 <20 <30 3,000 <10 1,500
1,500 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- 3,000 3,000 3,000 <20 <20 <30 10,585 15,000 1,000 3,000 1,500 1,500 In percent Calcium2 Iron2 Magnesium Phosphorus Potassium Sodium Titanium2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. <-2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. .
9.< .;
Table 1.— Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued [Symbols:. N.O. - not determined; - less than value indicated; - greats r than value indicated] Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium Terbium Dysprosium Ho Imium Erbium2 Thulium Ytterbium2 Lutetium Yttrium2 Total rare earths Barium Beryllium2 Bismuth2 Copper Lead2 Manganese' Molybdenum Niobium2 Strontium Tin2 Vanadium2 Zinc2 Zirconium" MHS- <50 <50 <20 <50 <20 <30 1,500 <10 1,500 1,000 <10 MHS- <70 <50 <20 <50 <20 <30 1,500 <10 1,500 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- In perts <70 <50 <20 <50 <20 <30 1,500 <10 1,500 1,500 <10 MHSper million <50 <50 <20 <50 <20 <30 1,500 ,7 <10 1,500
1,500 <10 MHS- <70 <50 <20 <50 <20 <30 1,500 <10 1,500 1,500 <10 MHS- <70 <20 <50 <20 <30 1,500 <10 " 1,500 <10 MHS- <50 <50 <20 <50 <20 <30 1,500 <10 3,000 3,000 <10 MHS- <70 <50 <20 <50 <20 <30 <10 <10 In percent Calcium2 Iron2 Magnesium Phosphorus Potassium Sodium Titanium2 <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 <.2 <.2 <.2
Table 1. — Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued [Symbols: N.D. - not determined; - less than value indicated; - greater than value indicated] Locality No. Sample No. Element Thorium1 Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium2 Terbium2 Dysprosium Holmium Erbium2 Thulium tttsrbium Lutecium Yttrium2 Total rare earths Barium Beryllium Bismuth Copper Lead2 Manganese Molybdenum" Niobium2 Strontium" Tin2 Vanadium Zinc2 Zirconium MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 <10 MHS- In parts 1,500 <70 <20 <50 <20 <30 3,427 3,000 3,000 3,000 <10 MHSper million 5,000 7,000 1,000 5,000 <20 <20 <30 19,565 5,000 7,000 <10 MHS- <20 <50 <20 <30 2,157 3,000 7,000 1,500 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- 3,000 3,000 3,000 <20 <20 <30 10,530 7,000
1,000 3,000 1,000 <20 1,500 MHS- 3,000 3,000 3,000 <20 <20 <30 10,630 5,000 1,000 3,000 3,000 <20 In percent Calcium2 Iron2 Magnesium Phosphorus Potassium Sodium Titanium2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. >10 <-2 >10 <.2
Table [Symbols: N.D. Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium2 Terbium2 Dysprosium" Holmium Erbium Thulium Ytterbium2 Lutetium Yttrium2 Total rare eartha Barium Beryllium Bismuth'' Copper Lead2 Manganese Molybdenum Niobium2 Strontium2 Tin2 Vanadium2 Zinc 2 Zirconium" MRS- <50 <20 <50 <20 <30 1,343 3,000 <10 7,000 3,000 <10 I.— Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued . - not determined; - less than value indicated; - greeter then value indicated] MHS- <50 <20 <50 <20 <30 1,603 3,000 <10 3,000 2,000 <10 MHS- 3,000 3,000 3,000 <20 <30 11,760 7,000 3,000 15,000 3,000 1,500 MHS- In parts N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHSper million 3,000 5,000 3,000 <20 <20 <30 12,585 7,000
<10 30,000 3,000 <20 MHS- 1,500 2,000 2,000 <20 <20 <30 6,610 7,000 , <10 30,000 3,000 <20 MHS- 7,000 <50 <20 <50 <20 <30 2,147 5,000 <10 7,000 3,000 MHS- <20 <20 <30 2,215 3,000 <10 15,000 2,000 MHS- <20 <50 <20 <30 1,197 3,000 3,000 2,000 <10 In percent Calcium Iron2 Magnesium Phosphorus Potasaium Sodium2 Titanium2 <.2 <.2 >10 <.2 N.D. N.D. N.D. N.D. N.D. N.D. >10 <-2 <.2 <.2 <.2 <.2
Table [Symbols: N.D Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium2 Thulium2 Ytterbium2 Lutetium Yttrium2 Total rare earths Barium Beryllium Bismuth Copper Lead2 Manganese Molybdenum Niobium2 Strontium Tin2 Vanadium2 Zinc2 Zirconium MHS- 1,500 1,500 1,500 <20 <20 <30 5,930 7,000 <10 30,000 7,000 1.— Chemical analyses of samplee from the principal Tertiary intrusive mass in the southern Besr Lodge Mountains. - Continued . - not determined; - less than value indicated; - greater than value indicated] MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. ' N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- In parts 1,000 1,500 1,500 <20 <20 <30 4,977 5,000 <10 1,500 1,500 <10 MHSper million 1,500 1,500 1,500 <20 <20 <30 5,347 5,000 e <10 2,000 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. S.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <70 <50 <20 <50 <20 <30 1,500 <10 1,000
3,000 <10 In percent Calcium2 Iron 2 Magnesium Phosphorus Potassium Sodium Titanium2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D.
m
Table 1. — Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued [Symbols: N.D. - not determined; - less than value indicated; - greater than value indicated] Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium2 Terbium Dysprosium Holmlum Erbium2 Thulium" Ytterbium2 Lutetium Yttrium2 Total rare earths Barium Beryllium Bismuth Copper Lead2 Manganese Molybdenum" Niobium2 Strontium Tin2 Vanadium Zinc 2 Zirconium Calcium Iron2 Magnesium Phosphorus Potassium Sodium Titanium MHS- MHS- MHS- MHS- MHS- MHS- MHS- MHS- MHS- In parts per million <50 <50 <20 <50 <20 <30 2,000 <10 3,000 <10 <.2 N.D. H.D. H.D. H.D. N.D. N.D. H.D. H.D. H.D. H.D. N.D. N.D. H.D. N.D. H.D. N.D. H.D. H.D. N.D. N.D. H.D. N.D. H.D. N.D. N.D. N.D. H.D. N.D. N.D. H.D. N.D. N.D. H.D. N.D. N.D. <50 <20 <50 <20 <30 2,545 2,000 <10 1,000 1,500 <.2 H.D. N.D. N.D. H.D. H.D. H.D. N.D. N.D. H.D. H.D. N.D. H.D. H.D. N.D. N.D. H.D. H.D. N.D. H.D. H.D. N.D. H.D. H.D. N.D. H.D. N.D. H.D. N.D. N.D. In H.D. H.D. H.D. H.D. N.D. N.D. <70 <50 <20 <50 <20 <30 2,000
<10 1,500 3,000 <10 percent <.2 N.D. N.D. H.D. N.D. H.D. H.D. N.D. H.D. N.D. H.D. N.D. N.D. H.D. N.D. N.D. N.D. N.D. , N.D. N.D. H.D. H.D. H.D. N.D. H.D. S.D. N.D. H.D. H.D. H.D. H.D. N.D. H.D. N.D. H.D. H.D. 1,500 <50 <20 <50 <20 <30 3,427 2,000 <10 3,000 2,000 <10 <-2 <70 <50 <20 <50 <20 <30 1,873 3,000 <10 3,000 <10 <.2 N.D. H.D. N.D. H.D. H.D. H.D. N.D. N.D. N.D. H.D. N.D. H.D. H.D. N.D. N.D. N.D. H.D. H.D. H.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. H.D. H.D. N.D. N.D. H.D. N.D. H.D. H.D.
Table 1- --Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains* - Continued [Symbols: N.D. - not determined; - less than value indicated; - greater than value indicated] Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium2 Thulium2 Ytterbium2 Lutetium Yttrium2 Total rare earths Barium2 Beryllium Bismuth Copper Lead 2 Manganese Molybdenum Niobium2 Strontium Tin2 Vanadium2 Zinc 2 Zirconium MHS- 1,000 <20 <20 <30 3,057 3,000 <10 3,000 <10 MHS- 2,000 3,000 1,500 <20 <20 <30 7,427 3,000 2,000 3,000 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- In parts 2,000 3,000 3,000 <20 <20 <30 9,1-77 1,500 3,000 <10 MHSper million N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.JJ. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- 1,500 <50 <20 <50 <20 <30 3,395 3,000 <10 1,500 <10 MHS- <50 <50 <20 <50 <20 <30 <10 1,500
<10 MHS- <70 <50 <20 <50 <20 <30 1,500 <10 3,000 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. In percent Calcium2 Iron2 Magnesium Phosphorus Potassium Sodium2 Titanium <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. <-2 <-2 <.2 N.D. N.D. N.D. N.D. N.D. N.D.
Table [Symbols: N.D Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium2 Terbium2 Dysprosium Holmium Erbium2 Thulium Ytterbium2 Lutetium YttriumTotal rare earths Barium Beryllium Bismuth Copper Leed2 Manganese Molybdenum Niobium2 Strontium" Tin2 Vanadium2 Zinc 2 Zirconium MHS- <50 <20 <50 <20 <30 1,500 <10 3,000 1,500 <10 — Chemical analyses of samples from che principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued . - not determined; - less than value indicated; - greater than value indicated] MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 1,500 <10 1,500 3,000 <10 MHS- In parts N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHSper million 1,500 3,000 ISO <50 <20 <50 <20 <30 5,647 3,000
<10 7,000 3,000 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- 1,500 <20 <50 <20 <30 3,630 3,000 <10 ISO 3,000 3,000 <10 MHS- <50 <20 <50 <20 <30 2,493 3,000 <10 7,000 2,000 <10 MHS- <50 <20 <50 <20 <30 2,000 <10 3,000 1,500 <10 In percent Calcium2 Iron2 Magnesium Phosphorus Potassium Sodium Titanium2 <-2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 <.2
Table [Symbols: N.D Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium Terbium2 Dysprosium Holmium Erbium Thulium Ytterbium2 Lutetium Yttrium" Total rare earths Barium Beryllium4" Bismuth Copper Lead2 Manganese" Molybdenum Niobium2 Strontium Tin2 Vanadium2 Zinc2 Zirconium MHS- <50 <50 <20 <50 <20 <30 1,500 <10 1,500 3,000 <10 1. — Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued . - not determined; - less than value indicated; - greater than value indicated] MHS- <50 <50 <20 <50 <20 <30 1,500 <10 1,000 3,000 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D.
N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- In parts N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHSper million N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <20 <50 <20 <30 1,000 <10 2,000 " 1,500 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. In percent Calcium Iron2 Magnesium Phosphorus Potassium Sodium Ti tanium <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.O. N.D. N.D. N.D. N.D. N.D.
Table 1.— Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains* - Continued [Symbols: N.O. - not determined; - less than value indicated; - greater than value indicated] Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium Terbium Dysprosium
Holmium" Erbium2 Thulium Ytterbium2 Lutetium Yttrium2 Total rare earths Barium Beryllium Bismuth 2 Copper Lead2 Manganese Mo lybdenum*' Niobium2 Strontium2 Tin 2 Vanadium Zinc2 Zirconium MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- ISO <50 <70 <20 <50 <20 <30 1,500 <10 1,500 <10 MHS- <50 <50 <20 <50 <20 <30 1,500 <10 <10 MHS- In parts <50 <50 <20 <50 <20 <30 1,500 <10 1,500 <10 MHSper million N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. t N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- 1,000 <50 <70 <20 <50 <20 <30 2,857 <10 1,500 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. - N.D. N.D. N.D. N.D. N.D. N.D. MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 1,500 <10 1,500
5,000 <10 In percent Calcium2 Iron2 Magnesium Phosphorus Potassium Sodium Titanium2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <.2
Table L— Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued [Symbols:< N.D. - not determined; - less than value indicated; - greater than value indicated] Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymlum Samarium Europium Gadolinium Terbium Dysprosium Holmlum Erbium" Thulium" Ytterbium2 Lutetium Yttrium2 Total rare earths Barium2 Beryllium Bismuth Copper Lead" Manganese Molybdenum2 Niobium2 Strontium2 Tin 2 Vanadium Zinc 2 Zirconium MHS- <50 <50 <20 <50 <20 <30 1,500 <10 1,500
2,000 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <20 <50 <20 <30 1,500 <10 15 ' 1,500 <10 MHS- In parts N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHSper million <50 <70 <20 <50 <20 <30 1,500 1,500 1,500 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 1,500 <10 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. In percent Calcium2 Iron2 Magnesium Phosphorus Potassium1 Sodium Titanium2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D.
Table 1. — Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains- - Continued [Symbols: N.D. - not determined; - less than value indicated; - greater than value indicated] Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium Terbium Dysprosium" Holmium Erbium2 Thulium Ytterbium Lutetium Yttrium2 Total rare earths Barium Beryllium. Bismuth2 Copper Lead2 Manganese Molybdenum Niobium2 Strontium Tin2 Vanadium Zinc 2 Zirconium MHS- <50 <50 <20 <50 <20 <30 1,500 <10 1,000 <10 MHS- <20 <50 <20 <30 1,300 1,500 <10 15,000 2,000 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- In parts <50 <50 <20 <50 <20 <30 1,000 <10 1,500 <10 MHSper million <50 <50 <20 <50 <20 <30 2,000 <10 1,500 <10 MHS- <50 <50 <20 <50 <20 <30 1,500 <10 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. S.D. N.D. N.D. N.D. N.D. N.D. .N.D. N.D. N.D. N.D. N.D. N.D. MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 1,500 <10 1,500
1,500 <10 In percent Calcium Iron2 Magnesium Phosphorus Potassium Sodium Titanium2 <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 <.2 N.D. N.D. N.D. N.D. N.D. S.D. N.D. N.D. N.D. N.D. N.D. N.D. <.2
Table 1. — Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued [Symbols: N.D. - not determined; - less than value indicated; - greater than valus indicated] Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium Terbium2 Dysprosium Holmium2 Erbium'" Thulium Ytterbium2 Lutecium Yttrium2 Total rare earths Barium Beryllium Bismuth Copper Lead 2 Manganese Molybdenum Niobium2 Strontium Tin2 Vanadium2 Zinc2 Zirconium MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 <10 <10 1,500 MHS- <70 <50 <50 <20 <50 <20 <30 1,000 <10 <10 MHS- In parts <50 <50 <20 <50 <20 <30 1,500 <10 1,500 1,500 <10 MHSper million N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. ,.N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. S.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 <10 1,500 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 1,500 <10 1,500
3,000 <10 In percent Calcium2 Iron2 Magnesium Phoephorus Potassium Sodium Titanium2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2 <.2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2
Table 1 -—Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued [Symbols: N.D. - not determined; - less than value indicated; - greater than value indicated] Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium" Terbium Dysprosium Holmium Erbium2 Thulium Ytterbium2 Lutecium Yttrium2 Total rare earths Barium Beryllium2 Bismuth Copper Lead2 Manganese Molybdenum Niobium2 Strontium2 Tin2 Vanadium2 Zinc 2 Zirconium MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 1,500 <10 <10 MHS- In parts <50 <50 <20 <50 <20 <30 1,500 <10
<10 <10 MHSper million N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. S.D. N.D. N.D. S.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 <10
1,500 <10 MHS- N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 1,000 <10 1,500 2,000 <10 In percent Calcium2 Iron2 Magnesium Phosphorus Potassium Sodium Titanium2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <.2 <-2 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2
Table [Symbols: N.D. Locality No. Sample No. Element Thorium1 Cranium Lanthanum'' Cerium PraesodymiuBi Neodymium Samarium" Europium Gadolinium2 Terbium Dysprosium o Holmium Erbium2 Thulium Ytterbium2 Lutecium Yttrium2 Total rare earths Barium2 t Beryllium*" Bismuth" Copper" Lead2 Manganese Molybdenum Niobium2 Strontium Tin2 Vanadium2 Zinc 2 Zirconium MHS- 1 . — Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued - not determined; - less than value indicated; - greater than value indicated] MHS- MHS- MHS- MHS- MHS- MHS- MHS- MHS- In parts per million N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. <50 <50 <20 <50 <20 <30 1,500 <10 3,000 <10 <50 <50 <20 <50 <20 <30 1,500 <10 7,000 <10 <50 <50 <20 <50 <20 <30 1,500 <10 3,000 <10 N. N. N. N. N. N. N. N. N. N. N. N. N. N. N. N. N. 'N. N. N. N. N. N. N. N. N. N. N. N. D. D. D. D. D. D. D. D. D. D. D. D. D. D. D. D. D. PD. D. D. D. D. D. D. D. D. D. D. <50 <50 <20 <50 <20 <30 2,000 <10 1,500 <10 N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. ' N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. 'N.D. N.D. N.D. N.D. N.D. N.D. <50 <50 <20 <50 <20 <30 3,000 <10 1,500 1,500 <10 <50 <50 <20 <50 <20 <30 1,500 <10 2,000 2,000 <10 In percent Calcium2 Iron2 Magnesium Phosphorus Potassium1 Sodium Titanium2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 <.2
N. N. N. N. N. N. D. D. D. D. D. D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2
Table 1.— Chemical analysee of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued [Symbols : N.O. - not determined; - less than value indicated; - greater than value indicated] Locality Mo. Sample Mo. Element Thorium Uranium Lanthanum Cerium Fraesodymium Neodymium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium2 Thulium2 Ytterbium2 Lutetium Yttrium2 Total rare earths Barium Beryllium Bismuth 2 Copper Lead2 Manganese Molybdenum Niobium2 Strontium Tin2 Vanadium2 Zinc 2 Zirconium MHS- M.O. N.D. N.D. N.O. N.O. N.D. M.O. N.O. M.O. N.O. M.D. M.D. N.O. N.D. N.O. M.O. N.D. H.D. N.D. N.D. M.D. M.D. N.D. N.D. N.D. N.D. N.O. M.D. H.D. MHS- ISO <70 <50 <50 <20 <50 <20 <30 1,000 <10 ISO 1,500 <10 MHS- N.O. N.O. N.O. N.D. N.O. N.D. N.D. N.O. N.O. N.O. N.O. N.O. N.D. N.D. N.D. N.D. N.O. N.O. ' N.D. N.O. N.D. N.D. N.D. M.O. M.D. N.D. M.D. M.O. N.D. MHS- In parts <50 <50 <20 <50 <20 <30 1,500 <10 1,000 1,500 <10 MHSper million <50 <50 <20 <50 <20 <30 1,500
<10 1,500 3,000 <10 MHS- N.O. M.O. M.O. H.D. N.D. N.D. N.O. N.D. M.O. M.D. N.O. N.D. N.O. M.D. M.O. N.O. N.O. , H.O. N.D. M.D. M.D. M.D. M.D. N.D. N.D. M.D. M.D. N.O. N.D. MHS- <50 <50 <20 <50 <20 <30 1,500 <10 1,500 " 1,000 <10 MHS- M.O. N.D. M.D. N.O. M.O. N.D. M.O. N.O. M.D. M.D. N.O. N.O. N.O. M.O. M.D. M.O. M.D. N.O. M.D. N.D. M.D. M.D. M.D. N.D. N.D. M.D. N.O. N.O. N.O. MHS- <50 <50 <20 <50 <20 <30 1,000 <10
2,000 <10 In percent Calcium2 Iron2 Magnesium Phosphorus Potassium Sodium2 Titanium2 N.O. N.D. N.O. N.D. N.O. N.D. <.2 N.O. N.D. N.D. N.O. N.O. N.D. <-2 <.2 N.O. N.D. N.D. N.D. N.O. M.O. <.2 N.O. N.D. N.O. N.D. N.D. N.O. m
i:
Table 1. — Chemical analyses of samples from the principal Tertiary intrusive mass in the southern Bear Lodge Mountains. - Continued [Symbols: N.D. - not determined; - less than value indicated; - greater than value indicated] Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium Praesodymium Neodymium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium" Thulium Ytterbium2 Lutetium Yttrium2 Total rare earths Barium2 Beryllium Bismuth2 Copper Lead2 Manganese Molybdenum" Niobium2 Strontium2 Tin2 Vanadium Zinc2 Zirconium MHS- <50 <50 <20 <50 <20 <30 1,500 <10 1,500 1,500 <10 MHS- <50 <50 <20 <50 <20 <30 1,500 <10 1,500
3,000 <10 MHS311-79 N.D. N.D. N.D. N.D. N.O. N.O. N.O. N.O. N.D. N.O. N.D. N.D. N.D. N.O. N.D. N.O. N.O. N.O. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- In percs <50 <50 <20 <50 <20 <30 1,000 <10 1,500 1,500 <10 MHSper million N.D. N.O. N.D. N.O. N.D. N.D. N.O. N.D. N.O. N.O. N.D. N.D. N.O. N.D. N.O. N.D. N.O. N.D. t N.D. N.D. N.O. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. MHS- <50 <50 <20 <50 <20 <30 1,500 <10 1,500 2,000 <10 MHS- N.D. N.D. N.O. N.D. N.D. N.D. N.D. N.O. N.D. N.O. N.D. N.D. N.D. N.D. N.D. N.O. N.D. N.O. N.D. N.O. N.D. N.D. N.D. N.O. N.D. N.D. N.O. N.D. MHS- <50 <50 <20 <50 <20 <30 1,500 <10 1,500 1,500 <10 MHS- N.D. N.D. N.D. N.D. N.O. N.D. N.D. N.D. S.D. N.D. N.D. N.O. N.D. N.O. N.D. N.D. N.O. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.O. N.D. In percent Calcium2 Iron2 Magnesium Phosphorus Potassium Sodium Titanium2 <.2 <.2 N.D. N.D. N.D. N.D. N.O. N.D. <.2 N.O. N.D. N.D. N.D. N.O. N.D. <.2 N.D. N.D. N.D. N.D. N.D. N.D. <.2 N.D. N.D. N.O. N.D. N.D. N.D. l/t
Table 1. —-Chemical analyses of samples from che principal Tertiary intrusive mass in che southern Bear Lodge Mountains. - Continued [Symbols: N.D. - not determined; - less than value indicated; - greater than value indicated] Locality No. Sample No. Element Thorium Uranium Lanthanum Cerium2 Praesodymium Neodymium Samarium Europium Gadolinium Terbium2 Dysprosium Holmium Erbium2 Thulium2 Ytterbium2 Lutetium2 Yttrium2 Total rare earths Barium Beryllium Bismuth Copper Lead2 Manganese Molybdenum2 Niobium2 Strontium Tin2 Vanadium2 Zinc 2 Zirconium MHS- MHS- MHS- MHS- MHS- MHS- MHS- MHS- MHS- In perts per million <50 <50 <20 <50 <20 <30 1,500
<10 1,500 1,500 <10 In percent Calcium2 Iron2 Magnesium Phosphorus Potassium Sodium Titanium2 <.2