Stratigraphic sections of the Phosphoria formation in Idaho (third Idaho report)
<p>The first of a series of reports giving detailed stratigraphic sections of the Phosphoria formation in the Western phosphate field as measured and…
Public-domain full text preserved in the Mountain Man Mining Library. Original source: pubs.usgs.gov.
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USGS _iBRAR - RESTON 1 11#11 11 11111 1M1 3 1818 00083596 5 UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY STRATIGRAPHIC SECTIONS OF THE PHOSPHORIA FORMATION IN IDAHO Third Idaho Report by F. W. UT Malley, D. F. Davidson, A. A. Hoppin, and R. P. Sheldon MINERAL DEPOSITS BRANCH Spokane, Vk ashington February 1952 OPEN FILE
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This report is preliminary and has not been edited or reviewed for conformity with U. S. Geological survey standards and nomenclature. , CAL ' 1 5 5 8 65" Mei
TABLE OF CONTENTS Page Introduction Abstract of sections Fort Hall Indian Reservation, Simplot Fertilizer Company Mine, Lot no., 1269. Woodall Creek. Lot no. 1262, Blackfoot Narrows, Lot no., 1261. North Dry Valley. Lot no, 1259.
Kendall Canyon. Lot no, 1258. Slug Cree',c., Lot no, 1278 V, est Georgetown Canyon., Lot no„ 1264. East Georgetown Canyon.. Lot no. 1267, Paris Canyon, Lot no 1266. Bloomington Canyon.., Lot no. 1272.
STRATIGRLAPHIC SECTIONS OF THi PHOSPHORL\ FORM!TION IN IDAHO Third Idaho teport by F. W. 0' Malley, D. F. Davidson, R. A. Hoppin, andR. P. Sheldon INTRODUCTION The first of a series of reports giving detailed stratigraphic sections of the Phosphoria formation in the Western phosphate field as measured and described by the Geological Survey will soon be published as Circulars. Because of the needs of industry for many of these data during the 1951 field season, and in view of the unavoidable delays attendant on publication, the tabular data to be included in five of these Circulars have already been placed on open file in simple reproduction form (prepared by Ozalid from photographic negatives) and without explanatory text so that earlyuse could be made of the data. The first four sets of tables, one each for the states of Montana, Idaho, \Vyoming, and Utah, were released on open file on August 15, 1951, A second Idaho report was released on October 4, 1951. This report includes data of the same character but of samples from different localities and is the third report on samples from Idaho. The tables include name and location of section measured, brief description of geologic setting, acknowledgments for field and analytical work, abstract data on the sections (bed number, rock name, sample number, and thickness), and analytical data on the samples. The analytical data include reports on P2Oç and acid insoluble for all samples and additional analyses, such as A1203, Fe2O3, and loss on ignff.ion for selected samples. These reports are placed on open file at the offices of the Geological Survey in W ashinton, D. C,, Spokane, V ashington, Salt Lake City, Utah, and Montpelier, Idaho, and at the offices o the Idaho Bureau of Mines and Geology, Moscow, Idaho, the Montana Bureau of Mines and Geoltgy, Butte, Montana, the Wyoming Geological Survey, Laramie, Wyoming, and the University of Utah, Salt Lake City, Utah.
EAST GEORGETOWN CANYON, IDAHO. LOT NO. 1267. Phosphatic shale member of Phosphoria formation sampled in bulldozer trench of Central Farmers' Fertilizer Cooperative, on east side of canyon about 1,000 feet above Georgetown Creek, NEINWI sec. 30, T. 10 S., FL 45 E., Bear Lake County, Idaho, on east limb of Georgetown syncline. Beds strike 10° E. and dip 70° W. Section measured by R. A. Harris and F. W. C, Malley and sampled by R. A. Harris and R. A. Smart in October 1948. Samples analyzed for P204 and acid insoluble by U. S. Bureau of Mines Laboratory, Albany. Oregon, and for other constituents by laboratories of the U. S. Geological Survey, Geochemistry and Petrology Branch, Washington, D. C. Chemical anal ses . - rcent Cumulative Thickness x Bed Sample Thickness Rock description oss on thickness percent P,Or. no. no. (feet) P205 A1203 Fe2O3 igmtaon insolc uble (feet) (cumulati*er Rex member of Phosphoria formation-basal beds only R3 Chert 3240-WOM R2 Chert 3260-WOM RMudstone, calcareous 3259-WOM Phosphatic shale member of Phosphoria formation-base not exposed P-108 Mudstone 3258-WOM P-107 Mudstone 3257-WOM P-106 Phosphate rock 3256-WOM P-105 Mudstone 3255-WOM P-104 Mudstone, phosphatic 3254 -WOM P-103 Mudstone 3253-WOM P-102 Mudstone, calcareous 3252-WOM P-101 Mudstone 3251-WOM ./.../00 Mudstone; fos. col. no. 48-JES-3701 3250 -WOM ' 99 Mudstone 3249-WOM 98 Mudstone; fos. col. no. 48-JES-369 3248-W0M 97 Mudstone, calcareous; fos. col. no. 48-JES-368 3247-WOM P- 96 Phosphate rock, argillaceous 3246-WOM Mudstone 3245-WOM r- 94 Mudstone, phosphatic 3244-W0M ;),- 93 Mudstone 3243-WOM Mudstone, phosphatic 3242-W0M r- 91 Mudstone, phosphatic 3241 -WOM Phosphate rock 3239-WOM `--- 89 Mudstone, phosphatic 3238-WOM P- 88 Phosphate rock 3237-WOM Mudstone 3236-WOM r- 86 Phosphate rock and phosphatic mudstone 3235-WOM P.. . 85 Mudstone and phosphate rock 3234 -WOM z-- 84 3233-W0M Phosphate rock Lot no. 1267. III - Idaho 26
P. 83 Phosphate rock, argillaceous 3232-WOM P- 82 Phosphate rock and phosphatic mudstone 3231-WOM Phosphate rock P. 81 3300-WOM P. 80 Phosphate rock 3299-WOM 404,06 P- 79 Phosphate rock, argillaceous 3298-WOM P. 78 Phosphate rock and phosphatic mudstone 3297-WOM P. 77 Phosphate rock 3296-WOM P. 76 Phosphate rock 3295-WOM P. 75 Phosphate rock, calcareous 3294-WOM P. 74 Phosphate rock 3293 -WOM P- 73 Mudstone and phosphate rock 3292-WOM P. 72 Phosphate rock 3291 -WOM J. 71 Phosphate rock, argillaceous 3290-WOM P. 70 Mudstone 3289-WOM P. 69 Mudstone 3288-WOM P. 68 Phosphate rock, argillaceous 3287-WOM P- 67 Phosphate rock, argillaceous 3286-WOM P- 66 Mudstone, phosphatic 3285-WOM P. 65 Phosphate rock, argillaceous 3284-WOM P- 64 Mudstone 3283-WOM P. 63 Mudstone 3192RH P- 62 Phosphate rock, argillaceous 3191RH P- 61 Mudstone, phosphatic 3282-WOM Mudstone, phosphatic P. 60 3281 -WOM 1,002.31 P- 59 Mudstone 3280- WOM 1,009.72 P- 58 Mudstone, phosphatic 3279-WOM 1,019.45 P- 57 Phosphate rock, argillaceous 3278- WOM 1,034.01 P- 56 Mudstone, phosphatic 3277-WOM 1,039.45 P- 55 Mudstone, phosphatic 3276-WOM 1,053.13 P .- 54 Mudstone 3275-WOM 1,056.83 P- 53 Mudstone, phosphatic 3274 -WOM 1,066.19 P- 52 Phosphate rock, argillaceous 3273-WOM 1,079.15 P- 51 Mudstone, phosphatic 3272-WOM 1,089.31 P- 49 Mudstone 3270 -WOM 1,105.11 P- SO Mudstone 3271-WOM 1,094.51 P- 48 Mudstone 3269-WOM 1,117.11 P. 47 Mudstone 3268-WOM 1,117.67 Mudstone P- 46 3267-WOM 1,120.79 P- 45 Mudstone 3266-WOM 1,122.95 P- 44 3265-WOM 1,131.35 Mudstone P- 43 Mudstone, phosphatic 3264-WOM 1,147.05 P- 42 Mudstone 3263-WOM 1,151.73 P- 41 Mudstune, phosphatic 3262-WOM 1,159.08 1,180.28 P. 40 Phosphate rock 3261-WOM 1 Fossil collection made by J. E. Smedley. Paleontology and Stratigraphy Branch, U. S. Geological Survey. Lot no. 1267. Ill - Idaho 27
Bed no. Rock description Sample no. Thickness (feet) P 0 2 S Chemical anal ses rcent oss on Al 0 Fe2O3 ignition insoluble Cumulative thickness (feet) Thickness x percent P,O, (cumuLatiite) P- 3 P- 3 P- 3 P- 3 P- 3
Mudstone, phosphatic Phosphate rock, argillaceous Mudstone Phosphate rock Mudstone 3230 -WOM 3229-W0M 3228-WOM 3227-WOM 3226-WOM 1,188.48 1,218.93 1,221.73 1,279.33 1,299.13 P- 3 P- 3 P- 3 P- 3 P- 3 Phosphate rock, argillaceous Mudstone Mudstone, phosphatic Mudstone Mudstone, phosphatic 3225-W0M 3224 -WOM 3223-WOM 3222-WOM 3221 -WOM 1,329.88 1,334.32 1,350.97 1,352.87 1,370.27 P P- 2 P- 2 P- 2 P-
Mudstone, phosphatic, calcareous Mudstone, calcareous, phosphatic Mudstone, calcareous Mudstone, calcareous Mudstone 32203219321832173216RH RH RH RH RH 1,399.02 1,427.82 1,433.37 1,434.49 1,436.10 P- 2 P- 2 P- 2 P- 2 P- 2
Mudstone Chert Mudstone Mudstone Mudstone, phosphatic 32153214321332123211RH RH RH RH RH 1,438.85 1,439.41 1,441.09 1,445.46 1,457.76 P P P PP-
Mudstone Mudstone Mudstone, phosphatic Mudstone Mudstone 32103209320832073206RH RH RH RH RH 1,460.01 1,467.06 1,475.76 1,476.48 1,480.28 P P P PP- Mudstone Covered Limestone Phosphate rock, argillaceous Phosphate rock, calcareous, argillaceous 320332023201RH RH RH RH
1,482.62 2.90* P P P PP- Limestone, phosphatic, argillaceous Limestone, phosphatic Phosphate rock Phosphate rock Phosphate rock 32003199319831973196RH RH RH RH RH PPhos hate rock and hos hatic mudstone 3195RH III - Idaho 28
P3 Limestone, argillaceous 1 3194- RH P2 Limestone, argillaceous 3193- RH 271. P. Covered 2.0(?) Phosphoria-Wells contact not exposed; covered interval probably not more than 3 feet thick. Wells formation—not exposed Cumulative data incomplete due to missing information. Computations start from zero after interruption. Note incompleteness of cumulative data. III - Idaho 29 Lot no. 1267.
PARIS CANYON, IDAHO. LOT NO. 1266. Phosphatic shale member of Phosphoria formation sampled in bulldozer trench on north side of Paris Canyon. sec. 8, T. 14 S., R. 43 E., Bear Lake County, Idaho, on overturned west limb of Paris syncline. Beds strike N. 2 E. and dip 35* W. Section measured by F. W. 0' Malley, R. A. Harris, and D. F. Davidson and sampled by R. G. Waring and Harris in September 1948. Samples analyzed for P205 and acid insoluble by U. S. Bureau of Mines Laboratory, Albany, Oregon, and for other constituents by laboratories of the U. S. Geological Survey, Geochemistry and Petrolo Branch, Was on, D. C. Chemical anal ses rcent Cumulative Thickness x Bed Sample Thickness Rock description oss on ci thickness percent P20c no. no. (feet) Al2O3 Fe2O3 P205 ignition insoluble (feet) (cumulative Rex member of Phosphoria formation-basal beds only R3 Chert 3180-WOM R2 Chert 3179-WOM RI Cheri 3178-WOM Phosphatic shale member of Phosphoria formation P-119 Mudstone and phosphatic mudstone 3177-WOM P-118 Mudstone 3176-W0M P-117 Mudstone 3175-WOM P-116 Mudstone; fos, col. no. 48-JES-367 3174-W0M
P-115 Mudstone 3173-W0M P-114 Mudstone 3172-WOM P-113 Phosphate rock 3171-WOM P-112 Mudstone 3170-WOM P-111 Phosphate rock, argillaceous 3169 -WOM P-I10 Mudstone 3168-WOM P-109 Phosphate rock 3167-WOM P-108 Phosphate rock, argillaceous 3166-WOM P-107 Phosphate rock 3165-WOM P-106 Phosphate rock, argillaceous; fos. col. no. 48-JES-366 3164 -WOM P-105 Phosphate rock 3163-WOM P-104 Phosphate rock 3162-WOM P-103 Limestone 3161-WOM P-102 Phosphate rock 3160-WOM P-101 Phosphate rock, calcareous, argillaceous 3159-WOM P-100 Phosphate rock, argillaceous, calcareous 3158-WOM P- 99 Phosphate rock and argillaceous calcareous phosphate rock 3157-WOM 26,7 P- 98 Phosphate rock, argillaceous, calcareous 3156-WOM P- 97 Limestone 3155-WOM P- 96 Limestone, argillaceous 31 54 -WOM P- 95 Mudstone 3153-WOM Lot no. 1266. III - Idaho 30
P. 94 Limestone 3152-WOM P. 93 Mudstone, calcareous 3151-WOM P- 92 Phosphate rock. argillaceous 3150-WOM P- 91 Phosphate rock, argillaceous 3149-WOM P- 90 Phosphate rock 3148-WObt P- 89 Phosphate rock, calcareous, argillaceous 3147-WOM P- 88 Limestone, phosphatic, argillaceous 3146-WOM P. 87 Limestone, phosphatic, argillaceous 3145-WOM P- 86 Phosphate rock, argillaceous, calcareous 3144-WOM P- 85 Mudstone, phosphatic 3143-WOM P- 84 Mudstone 3142-WOM P. 83 Mudstone 3141-WOM P- 82 Phosphate rock, argillaceous 3140-WOM P- 81 Mudstone; fos. col. no. 48-JES-365 3139-WOM P- 80 Mudstone 3138-WOM P- 79 Phosphate rock, argillaceous; fos. col. no. 48-JES-364 3137-WOM P- 78 Mudstone 3136-WOM P- 77 Mudstone; fos. col. no. 48-JES-363 3135-WOM P- 76 Mudstone, phosphatic 3134-WOM P- 75 Mudstone 3133-WOM P- 74 Mudstone 3132-WOM P- 73 Mudstone, phosphatic 3131-WOM P- 72 Mudstone 3130-WOM 4W4111 On P- 71 Phosphate rock, argillaceous 3129-WOM P- 70 Mudstone 3128 - WOM P- 69 Chert 3127-WOM 73,5 P- 68 Mudstone 3126-WOM P- 67 Chert 3125-WOM P- 66 Mudstone, phosphatic 3124-WOM P- 65 Chert 3123-WOM P- 64 Phosphate rock, argillaceous 3122-WOM P- 63 Mudstone 3121-WOM P- 62 Mudstone 3120 -WOM P- 61 Mudstone 3119-WOM P- 60 Mudstone, phosphatic 3118-WOM P- 59 Mudstone; fos. col. no. 48-JES-362 3117-WOM P- 58 Mudstone, phosphatic; fos. col. no. 48-JES-361 3116-WOM P- 57 Phosphate rock; fos. col. no. 48-JES-360 3115-VMDM P- 56 Mudstone, phosphatic 3114-WOM P- 55 Mudstone, phosphatic; fos. col. no. 48-JES-359 3113-WOM 1 Fossil collection made by J. E. Smedley, Paleontology and Stratigraphy Branch, U. S. Geological Survey. Lot no. 1266. - Idaho 31
Chemical anal ses ercent Cumulative Thickness x Bed Sample Thickness Rock description Loss on Aci thickness percent P,Or no. no. (feet) P205 A1203 Fe2O3 ignition insoluble (feet) (cumulatiVe) P- 54 P- 53 P- 52 P- 51 P- 50 Mudstone Phosphate rock, argillaceous Mudstone Mudstone Limestone, argillaceous, phosphatic; fos. col. no. 48-JES-358 3112-W0M 3111-WOM 3110-WOM 3109-WOM 3108-WOM P- 49 P- 48 P- 47 P. 46 P- 45 Mudstone, phosphatic; fos. col. no. 48-JES-357 Limestone, argillaceous; fos. col. no. 48-JES-356 Mudstone, calcareous Mudstone, calcareous Mudstone, calcareous 3107-WOM 3106-WOM 3105-WOM 3104-WOM 3103-WOM P- 44 P- 43 P- 42 P- 41 P- 40 Mudstone, calcareous Mudstone, calcareous, phosphatic; fos. col. no. 48-JES-355 Mudstone, calcareous Limestone, argillaceous, phosphatic; fos. col. no. 48-JES-354 Mudstone 3102-WOM 3101-WOM 3100-WOM 3099 -WOM 3098-WOM 7,2 125,5 1,016.77 1,040.53 1,066.27 1,076.47 P- 39 P- 38 P- 37 P- 36 P- 35 Limestone, argillaceous Mudstone, calcareous, phosphatic Mudstone and chert Mudstone and chert; fos. col. no. 48-JES-353 Mudstone 3097-WOM 3096-WOM 3095-WOM 3094 -WOM 3093-WOM 1,077.43 1,084.23 1,089,45 1,092.57 1,104.07 P- 34 P- 33 P- 32 P- 31 P- 30 Mudstone Mudstone, calcareous, phosphatic; fos. col. no. 48-JES-352 Limestone, argillaceous Limestone Limestone, argillaceous, phosphatic; fos. col. no. 48-JES-351 3092-WOM 3091 -WOM 3090-WOM 3089-WOM 3088-WOM 1,118.47 1,135.30 1,142.60 1,143.80 1,153.43 P- 29 P- 28 P- 27 P- 26 P- 25 Phosphate rock, calcareous, argillaceous; fos. col. no. 48-JES-350 Phosphate rock, calcareous, argillaceous; fos. col. no. 48-JES-349 Phosphate rock, argillaceous, calcareous Phosphate rock, calcareous; fos. col. no. 48-JES-348 Phosphate rock, argillaceous, calcareous 3087-WOM 3086-W0M 2860- DFD 1850- DFD 1849- DFD 1,166.87 1,198.07 1,208.57 1,249.79 1,258.49 P- 24 Phosphate rock, argillaceous, calcareous 1848- DFD 1,273.43 Lot no. 1266. LU - Idaho 32
P- 23 P- 22 P- 21 P- 20 P- 19 Phosphate rock, argillaceous Phosphate rock, calcareous Phosphate rock, calcareous Phosphate rock, calcareous Mudstone and calcareous phosphate rock 1847- DFD 1846- DFD 1845- DFD 1844- DFD 1843- DFD 1,287.71 1,316.09 1,329.23 1,355.52 1,376.24 P- 18 P- 17 P- 16 P. 15 P- 14 Phosphate rock, argillaceous Phosphate rock, argillaceous Mudstone, phosphatic Mudstone, phosphatic Mudstone 1842- DFD 3085-WOM 3084 -WOM 3083-WOM 3082-WOM 1,384.99 1,393.74 1,404.14 1,433.54 1,435.85 P- 13 P. 12 P- 11 P- 10 P9 Phosphate rock Phosphate rock, argillaceous Mudstone, phosphatic Mudstone, phosphatic Phosphate rock, argillaceous; fos. col. no. 48-JES-347 3081 -WOM 3070-WOM 3069-WOM 3068-WOM 3067-WOM 1,456.15 1,487.35 1,501.45 1,514.95 1,554.28 PP- PP P. Phosphate rock, argillaceous; fos. col. no. 48-JES-346 Phosphate rock, argillaceous Phosphate rock Phosphate rock Mudstone, phosphatic 30803079307830773076RH RH RH RH RH
1,570.12 1,584.22 1,656.16 1,744.04 1,752.32 P. P. P. Mudstone Mudstone, calcareous Phosphate rock 307530743073RH RH RH 1,758.32 1,759.09 1,767.70 Wells formation-top beds only Cw- 1 Cw- 2 Dolomite, argillaceous, calcareous Dolomite, calcareous, argillaceous 30723071RH RH Z. 7 Lot no. 1266. 111 - Idaho 33
BLOOMINGTON CANYON, IDAHO. LOT NO. 1272. Phosphatic shale member of Phosphoria formation cored in diamond drill hole no. 1 on north slope of Bloomington Canyon, sec. 21, T. 14 S., R. 43 E., Bear Lake County, Idaho, on west limb of Paris syncline. Beds strike NW; dip varies from 0 to 20' E. Hole drilled in June and July 1948 by U. S. Bureau of Mines, A. E. Long in charge. Core measured by R. H. Thurston, R. M. Campbell, R. A. Hoppin, R. L. Parker, D. F. Davidson, R. A. Gulbrandsen, D. A. Bostwick, and J. E. Smedley and sampled by Davidson. Samples analyzed for P,Oç and acid insoluble by U. S. Bureau of of Mines Laboratory, Albany, Oregon, and for other constituents by Trace Elements Section Laboratory, 11...3. Geological Survey, Washington, D. C. Chemical anal ses -rcent Cumulative Thickness x Bed Sample Thickness Rock description oss on thickness percent P 0 no. no. (feet) A1203 Fe2O P205 3 ignition insoluble (feet) (cumulative) Phosphatic shale member of Phosphoria formation-top not cored P-187 Mudstone 801 -RMC Z. 3 P-186 Mudstone 802-RMC P-185 Mudstone 803-RMC P-184 Mudstone and phosphate rock 804 -RMC P-183 Phosphate rock 805-RMC P-182 Mudstone, phosphatic 806-RMC 9. Z P-181 Phosphate rock 807-RMC The P205 and acid insoluble analyses represent a composite of samples 806-RMC and 807-RMC. P-180 Mudstone, phosphatic 808-RMC P-179 Phosphate rock, argillaceous 809-RMC P-178 Mudstone, phosphatic 810-RMC P-177 Phosphate rock 811-RMC 0.83 0.33 P-176 Phosphate rock, argillaceous 812-RMC P-175 Core missing P-174 Phosphate rock 813-RMC 9.56* P-173 Phosphate rock 814-RMC The P205 and acid insoluble analyses represent a composite of samples 8I3-RMC and 814-RMC. P-172 Phosphate rock, argillaceous
P-171 Core missing P-170 Phosphate rock 816-RMC P-169 Core missing P-168 Phosphate rock 817-RMC 24.66* P-167 Phosphate rock, argillaceous 818-RMC P-166 Phosphate rock and phosphatic mudstone 819-RMC P-165 Core missing P-164 Phosphate rock 820-RMC Cumulative data incomplete due to missing information. Computations start from zero after interruption. Lot no. 1272. III - Idaho 34
P-163 Core missing P-162 Phosphate rock 821 -RMC 25.30* P-161 Phosphate rock and phosphatic mudstone 822-RMC P-160 Phosphate rock, argillaceous 823-RMC P-159 Mudstone, phosphatic 824-RMC P-158 Phosphate rock 825-RMC P-157 Mudstone 826-RmC P-156 Mudstone 827-RMC P-155 Mudstone 828-RMC P-I54 Mudstone 829-RMC P-153 Mudstone 830 -RMC P-152 Mudstone 831- RLP P-151 Mudstone 832- RLP P-150 Mudstone 833- RLP P-149 Mudstone 834- RLP P-148 Phosphate rock, calcareous 835- RLP P-147 Phosphate rock, calcareous 836JES P-146 Phosphate rock 837-DAB P-145 Phosphate rock 838-DAB 0,5 P-144 Phosphate rock 839-DAB P-143 Limestone, phosphatic 840-DAB P-142 Limestone, phosphatic 841-DAB P-141 Phosphate rock, calcareous, argillaceous 842-DAB P-140 Limestone, phosphatic 843-DAB P-139 Core missing P-138 Phosphate rock, argillaceous 844-DAB 29.88* P-137 Phosphate rock, argillaceous 845-RMC P-136 Phosphate rock and mudstone 846-RMC P-135 Phosphate rock, argillaceous 847-RMC P-134 Mudstone, phosphatic 848-RAH P-133 Mudstone, phosphatic 849-RAH P-132 Phosphate rock, argillaceous 850-RAM P-131 Mudstone, phosphatic 851-RAM P-130 Mudstone 852-RAM P-129 Mudstone 853- RAH P-128 Mudstone, phosphatic 854-RAH P-127 Mudstone, phosphatic 855-RAM
p-126 Mudstone, phosphatic 856-RAH - P-125 Mudstone, phosphatic 857-RAM Cumulative data incomplete due to missing information. Computations start from zero after interruption. Cumulative data in UI - Idaho 35
Bed no. P-124 P-123 P-122 P-121 P-120 P-119 P-118 P-117 P-116 P-115 P-114 P-I13 P-112 P- I 1 1 P-110 P-109 P-108 P-107 P-106 P-105 P-104 P-103 P-102 P-101 P-100 P- 99 P- 98 P- 97 P- 96 P- 95 P- 94 P- 93 P- 92 P- 91 P- 90 P. 89 Chemical anal ses rcent Cumulative Thickness x Sample Thickness Rock description oss on thickness percent P,0_4 no. (feet) A1203 Fe2O3 P205 ignition insoluble (feet) (cumulatiter Core missing Mudstone 858-RAH 7.67* Mudstone 859- RAH Mudstone 860-RAH Core missing Mudstone 861-RLP Core missing Mudstone 862- RLP Phosphate rock, argillaceous 863- RLP Core missing OD Mudstone 864-RLP 8.10* Mudstone 865- RLP Mudstone, phosphatic 866- RLP Muds tone 867-RLP Core missing Mudstone, phosphatic 868- JES 2.75* Mudstone and cherty phosphate rock 869- JES Mudstone 870- JES Chert 871- JES Chert 872- JES Chert 873-RLP 0.2) Core missing Chert 874- RLP 0.6) Core missing Chert 875-RLP 0. I ) The P205 and acid insoluble analyses represent a composite of samples 873-RLP 874-RLP, and 875-RLP. Core missing Chert 876- RLP 78. Z Core missing . OD Chert 877-RLP Core missing Chert 878- RLP Core missing - Mudstone and argillaceous phosphate rock 879-RAG Core missing Phosphate rock 880-RAG 27.04* Phosphate rock and mudstone 881-RAG Lot no. 1272. III - Idaho 36.
P- 88 Muds tone 882- RAG P- 87 Mudstone 883- RAG P- 86 Core missing P- 85 Mudstone 884- RAG Z. 4 l . 8742* P- 84 Phosphate rock 885- RAG ir P. 83 Mudstone 886- RAG P- 82 Phosphate rock, argillaceous 887- RAG The P205 and acid insoluble analyses represent a composite of samples 886-RAG and 887-RAG. P- 81 Core missing P- 80 Mudstone 888-RAH P- 79 Mudstone 889- RAH Z. 3 P- 78 Core missing 0. Z P- 77 Mudstone and phosphate rock 890- RAH P- 76 Mudstone 891- RAH P- 75 Core missing P- 74 Mudstone 892-RAH P- 73 Core missing P- 72 Mudstone, phosphatic 893-RAH P- 71 Core missing P- 70 Mudstone 894-RAH 5.88* P- 69 Mudstone 895-RAH P- 68 Phosphate rock 896- RLP P- 67 Mudstone, phosphatic 897- RAH P- 66 Phosphate rock 898- RAH P- 65 Mudstone, phosphatic 899- RAH P- 64 Phosphate rock, argillaceous 900- RAH P- 63 Core missing P- 62 Phosphate rock, argillaceous 901- RAH 14.00* P- 61 Mudstone and phosphate rock 902- RAH P- 60 Mudstone 903- RAH P- 59 Mudstone 904-RAH P- 58 Mudstone and phosphate rock 905- RHT IMO P- 57 Mudstone, phosphatic 906- RHT P. 56 Mudstone 907- RHT P. 55 Mudstone, phosphatic 908- RHT P. 54 Mudstone 909- RHT The P205 and acid insoluble analyses represent a composite of samples 908-RHT and 909-RHT. Cumulative data incomplete due to missing information. Computations start from zero after interruption. Lot no. 1272. 111 - Idaho 37
Chemical anal ses rcent Cumulative Thickness x Bed Sample Thickness Rock description oss on thickness percent P20,5 no. no. (feet) Pz05 Alz03 Fez°3 ignition insoluble (feet) (cumulative) P- 53 P- 52 P- 51 P- 50 P- 49 Mudstone, phosphatic Mudstone, phosphatic Core missing Mudstone, phosphatic Mudstone 910- RHT 911-RHT 912-RHT 913-RHT .B ME " 4.70* P- 48 P- 47 P- 46 P- 45 Mudstone, phosphatic Mudstone, phosphatic Mudstone, phosphatic Mudstone 914-RHT 915-RHT 916-RHT 917-RHT P- 44 Mudstone 918-RHT P- 43 P- 42 Mudstone Mudstone 919-RHT 920-RHT 71,2 P- 41 Mudstone 921-RHT P- 40 Mudstone 922-RHT P- 39 Mudstone 923-RHT P- 38 Mudstone 924- RHT P- 37 Mudstone 925- RHT P- 36 P- 35 P- 34 Mudstone, phosphatic, calcareous Mudstone, phosphatic Mudstone, phosphatic 926- DFD 927-DFD 928-DFD P- 33 P- 32 Core missing Mudstone, phosphatic, and calcareous mudstone 929-DFD ma " " 34.98* P- 31 P- 30 Mudstone, phosphatic, calcareous Mudstone 930- DFD 931-DFD P- 29 Mudstone 932-DFD P- 28 P- 27 P- 26 P- 25 P- 24 Mudstone, calcareous, phosphatic Core missing Mudstone, phosphatic Mudstone, phosphatic Mudstone 933- DFD 934- DFD 935-DFD 936-RHT 2,2 5.67* P- 23 P- 22 P- 21 P- 20 P- 19 Mudstone, phosphatic, calcareous Mudstone, phosphatic Mudstone, phosphatic Phosphate rock, argillaceous Mudstone, phosphatic 937-RHT 938-RHT 939- RHT 940- RHT 941-RHT . .m. IND ." P- 18 Phosphate rock, argillaceous P- 17 Phosphate rock and mudstone P- 16 Mudstone, phosphatic P- 15 Mudstone, phosphatic P- 14 Mudstone, phosphatic Lot no. 1272. 942- RHT 943-RHT 944- RHT 945-RHT 946-RHT III p Idaho 38 168.70
P- 13 Phosphate rock, argillaceous 947-RHT P- 12 Phosphate rock and mudstone 948- RHT P- 11 Mudstone 949- RHT P- 10 Phosphate rock, argillaceous 950-RHT P9 Mudstone, phosphatic 951-RHT P8 Mudstone and phosphate rock 952- RHT P7 Core missing P6 Mudstone, phosphatic 953-RHT P5 Phosphate rock, argillaceous 954- RHT P4 Core missing P3 Mudstone 955- RHT 40.60* P2 Limestone breccia. argillaceous 956- RHT P1 Phosphate rock and chert 957- RHT 188.16** Wells formation-top beds only MO. Cw- 1 Limestone, argillaceous 958- RHT Cw- 2 Limestone and sandstone 959- RHT Cw- 3 Limestone breccia. cherty 960- RHT Cumulative data incomplete due to missing information. Computations start from zero after interruption. Note incompleteness of cumulative data. LII - Idaho 39. Lot no. 1272.
FORT HALL INDIAN RESERVATION, SIMPLOT FERTILIZER COMPANY MINE, IDAHO. LOT NO. 1269. Lower part of phosphatic shale member of Phosphoria formation, weathered and unweathered sections, sampled in pits at Simplot mine, Fort Hall Indian Reservation, sec. 22, T. 4 S., R. 37 E., Bingham County, Idaho. Section measured by F. W. 0' Malley and R. A. Harris and sampled by R. A. Smart in October 1948. Samples analyzed for p705, fluorine, and acid insoluble by U. S. Bureau of Mines Laboratory, Albany, Oregon. and for other constituents by Trace Elements Section Laboratery, U. S. Geological Survey, Washington, D. C. Chemical analyses (percent Cumulative Thickness x Bed Sample Thichness Rock description Loss on I Acid thickness percent P,Or, no. no. (feet) A1203 Fe2O3 F ignition I insoluble (feet) (cumulati*e) Phosphatic shale member of Phosphoria formation Hard, unaltered section Pit C P-50 Mudstone 2721-WOM P-49 Phosphate rock 2720-WOM P-48 Mudstone 2718-WOM P-47 Mudstone and phosphatic mudstone 2717-WOM 35,47 P-46 Mudstone 2716-WOM .1 P-45 Mudstone, phosphatic 2715-WOM P-44 Mudstone, phosphatic 2714-WOM P-43 Phosphate rock, argillaceous 2719-WOM P-42 Phosphate rock, argillaceous 2713-WOM P-41 Phosphate rock, argillaceous 2712-WOM P-40 Mudstone, phosphatic 2711-WOM P-39 Phosphate rock. argillaceous 2710-WOM P-38 Mudstone, phosphatic 2709-WOM 1168 . 21 0. Mb P-37 Limestone, argillaceous 2708-WOM P-36 Mudstone, phosphatic 2706-WOM Limestone concretion 2707-WOM (1.2) P-35 Phosphate rock, argillaceous, calcareous 2705-WOM About 10.0 feet of section not logged and sampled between bottom of pit C section and top of pit B section; rocks in pit B are stratigraphically below those measured in pit C, but exact correlation is not possible. Pit B P-34 Phosphate rock, argillaceous 2275-W014 P-33 Limestone 2274-WOM P-32 Limestone, phosphatic, argillaceous 2273-WOM P-31 Mudstone, calcareous, phosphatic 2272-WOM Lot no. 1269. III - Idaho 1
Bed no. Rock description Sample no. Thickness (feet) P 0 Chemical analyses _(percent) Loss on 1203 Fe203 ignition Acid insoluble Cumulative thickness (feet) Thickness x percent P201 (cumulative) P-30 P-29 P-28 Phosphate rock, argillaceous Phosphate rock, argillaceous Phosphate rock, argillaceous, calcareous 2271-WOM 2270-WOM 2269-WOM 16. Z P-27 Mudstone 2160 -WOM P-26 Phosphate rock, argillaceous 2159 - WOM P-25 Limestone 2158 -WOM P-24 P-23 P-22 P-21 Phosphate rock Phosphate rock Phosphate rock Mudstone 2157-WOM 2156 -WOM 2155-WOM 2154 - WOM P-20 P-19 Limestone concretion Phosphate rock, argillaceous Limestone 2153 -WOM 2152-WOM 2151- WOM (1.1) P-18 P-17 Mudstone, phosphatic Mudstone, phosphatic 2150 - WOM 2149-WOM P-16 P- 1 s P-14 P-13 P-12 Phosphate rock Phosphate rock, argillaceous Phosphate rock, argillaceous Phosphate rock Phosphate rock 2148-WOM 2147-WOM 2146-WOM 2145-WOM 2144-WOM P-11 P-10 PP- Limestone concretion Phosphate rock Phosphate rock, argillaceous, calcareous, and argillaceous phosphate rock Limestone Phosphate rock 2143 -WOM 2142- WOM 2141- WOM 2140-WOM 2139-WOM (0.6)
PP- 6 PP- 4 P- 3 Phosphate rock, argillaceous Limestone Limestone, phosphatic Phosphate rock Phosphate rock 2138-WOM 2137-WOM 2136-WOM 2279-WOM 2278-WOM 1,027.42 1,031.50 1,046.76 1,125.42 1,231.68 P- 2 P- 1 Mudstone, phosphatic Limestone, argillaceous 2277-WOM 2276-WOM 1,243.58 1,246.82 Base of phosphatic shale member is not exposed; bed P-1 probably lies 3 to 8 feet above base. Lot no.1269 III - Idaho 2
r Soft. weathered section Pit E P-51 Phosphate rock 2704-WOM P-50 Phosphate rock, argillaceous 2703-WOM P-49 Phosphate rock, argillaceous 2702-WOM P-48 Phosphate rock, argillaceous 2701 -WOM Z7.1 P-47 Mudstone, phosphatic 2700-WOM P-46 Phosphate rock, argillaceous 2699-WOM P-45 Phosphate rock, argillaceous 2698-WOM P-44 Phosphate rock, argillaceous 2697-WOM P-43 Mudstone. phosphatic 2696-WOM P-42 Phosphate rock, argillaceous 2695-WOM P-41 Mudstone, phosphatic 2694 -WOM P-40 Phosphate rock, argillaceous 2693-WOM P-39 Mudstone, phosphatic 2692-WOM P-38 Phosphate rock, argillaceous 2691 -WOM -37 Limestone 2690-WOM P-36 Phosphate rock 2689-WOM P-35 Phosphate rock, argillaceous 2688-WOM P-34 Limestone 2687-WOM P-33 Phosphate rock 2686-WOM P-32 Phosphate rock 2685-WOM P-31 Phosphate rock 2684-WOM P-30 Phosphate rock 2683-WOM P-29 Phosphate rock, argillaceous 2667-WOM Pit C north Beds P-32 through P-29 were resampled in Pit C north; they are equivalent to beds of the same number in Pit E. 2682-WOM 0.7) 0.87 0.59 P-32 Phosphate rock P-31 Phosphate rock 2681 -WOM 0.5) P-30 Phosphate rock 2680-WOM 0.5) P-29 Phosphate rock 2679-WOM 0.7) P-28 Phosphate rock 2678-WOM P-27 Phosphate rock 2677-WOM P-26 Phosphate rock, argillaceous 2676-WOM P-25 Mudstone, phosphatic 2675-WOM P-24 Phosphate rock, argillaceous 2674-WOM P-23 Phosphate rock, argillaceous 2673-WOM P-22 Phosphate rock, argillaceous 2672-WOM P-21 Phosphate rock, argillaceous 2671 -WOM P-20 Mudstone, phosphatic 2670-WOM Lot no. 1269 III - Idaho 3
Bed no. P-19 P-18 P-17 P-16 P-15 P-14 P-13 P-1 P-11 P-10 P- 9 P- 8 P- 7 P- 6 P- 5 P- 4 P- 3 P- 2 P- 1 Chemical anal ses - rcent Cumulative Thickness x Sample Thickness Rock description Loss on Ac thickness percent P,O, no. (feet) P2O5 A.1203 Fe2O3 F ignition insoluble (feet) (cumulatffe) Mudstone, phosphatic Phosphate rock, argillaceous Phosphate rock Phosphate rock, argillaceous Chert concretion 2669-WOM 2668-WOM 2666-WOM 2665-WOM 2664-WOM (0.6) Phosphate rock, argillaceous Phosphate rock Phosphate rock Phosphate rock, argillaceous Phosphate rock Phosphate rock, argillaceous Phosphate rock, argillaceous Phosphate rock, argillaceous Phosphate rock Phosphate rock 2663-WOM 2662-WOM 2.661-WOM 2660-WOM 2659-WOM 2658-WOM 2657-WOM 2656-WOM 2655-WOM 2654-WOM
1,065.04 Phosphate rock, argillaceous Mudstone Phosphate rock Mudstone and chert Mudstone, phosphatic 2653-WOM 2652-WOM 2651-WOM 2650-WOM 2280-WOM 1,079.68 1,086.93 1,099.09 1,103.51 1,116.02 Lot no. 1269. 111 - Idaho 4
WOODALL CREEK, IDAHO. LOT NO. 1262. Phosphatic shale member of Phosphoria formation sampled in bulldozer trench, NW+ sec. 26. T. 7 S., R. 42 E., Caribou County, Idaho, on east limb of faulted anticline. Beds strike N. W. and dip 35 E. Section measured by V. E. McKelvey, R. A. Gulbrandsen, F. W. 0' Malley, R. L. Parker, R. P. Sheldon, and R. G. Waring and sampled by Waring and T. K. Rigby in August 1948. Samples analyzed for P,04 and acid insoluble by U. S. Bureau of Mines Laboratory, Albany, Oregon, and for other constituents by Trace Elements Section Laboratory, U. S. G5orogical Survey, Washington, D. C. Chemical analyses (percent) Cumulative Thickness x Bed Sample Thickness Rock description Loss on Acid thickness percent P,O, no. no. (feet) 5 A1203 Fe2O3 ignition insoluble (feet) (cumulative) Rex member of Phosphoria formation-basal beds only RMudstone 1177-WOM R- 1 Chert 1176-WOM Phosphatic shale member of Phosphoria formation P-92 Mudstone 1175-WOM P-91 Mudstone; fos. col. no. 48-JES-2051 1174-WOM P-90 Mudstone 1170- WOM P-89 Mudstone; fos. col. no. 48-JES-204 1169-WOM P-88 Mudstone, phosphatic; fos. col. no. 48 -JES- 203 1168-WOM P-87 Phosphate rock, argillaceous; fos. col. no. 48-JES-202 1167-WOM P-86 Mudstone 1166-WOM P-85 Phosphate rock 1165-WOM P-84 Phosphate rock, argillaceous 1164-WOM From 1164-WOM to top of section units are weathered, slumped, and poorly exposed making thicknesses measured of questionable value. P-83 Phosphate rock, argillaceous 2000-WOM P-82 Phosphate rock and phosphatic mudstone 1999-WOM P-81 Phosphate rock 1998-WOM Z. 8 P-80 Phosphate rock, argillaceous 1997-WOM P-79 Phosphate rock, argillaceous 1996-WOM P-78 Phosphate rock, argillaceous 1995-WOM Z7.9 P-77 Phosphate rock, argillaceous 1994 -WOM P-76 Mudstone 1993-WOM P-75 Phosphate rock, argillaceous 1992-WOM P-74 Phosphate rock, argillaceous 1991-WOM P-73 Mudstone, phosphatic; fos. col. no. 48-JES-201 1990-WOM P-72 Mudstone 1989-WOM 1 Fossil collection made by J. E. Smedley, Paleontology and Stratigraphy Branch, U. S. Geological Survey. Lot no. 1262 III - Idaho 5
no Rock description Sam le no. Thickness (feet) P205 Chemical anal sea . - rcent ss on c Al1203 Fe203 ignition insoluble Cumulative thickness (feet) Thickness a percent P,Oc (cumuLatiiPer P-71 P-71 Phosphate rock, argillaceous; fos. col. no. 48-JES-200 Mudstone 1988-WOM 1987-WOM .0 OD P-6'
Mudstone, phosphatic; fos. col. no. 48-JES-199 Mudstone, phosphatic; fos. col. no. 48-JES-198 1986-WOM 1985-WOM
P-6 P-6P.. P.' Mudstone, phosphatic; fos. col. no. 48-JES- 197 Phosphate rock, argillaceous Mudstone, phosphatic Mudstone Mudstone 1984-WOM 1983-WOM 1982-WOM 1981-WOM 1970-WOM P-6' P-61 P-6 1 P-s' P-5; Phosphate rock and mudstone Mudstone, phosphatic Phosphate rock, argillaceous Mudstone, phosphatic Mudstone 1969-WOM 1968-WOM 1967-WOM 1966-WOM 1965-WOM
P-s P-55 PP-53 Mudstone Mudstone Mudstone; fos. col. no. 48-JES-196 Mudstone Mudstone; fos. col. no. 48-JES-195 2620-WOM 2619-WOM 2618-WOM 2617-WOM 2616-WOM P-52 P-51 P-5' P-4' P-48 Phosphate rock, argillaceous Mudstone; fos. col. no. 48-JES-194 Mudstone Phosphate rock, argillaceous Mudstone, phosphatic 2615-WOM 2614 -WOM 2613-WOM 2612-WOM 2611 -WOM P-47 P-45 P-4 P-43 Phosphate rock Mudstone Mudstone Phosphate rock, argillaceous Mudstone; fos. col. no. 48-JES-193 2610-WOM 2609-WOM 2608-WOM 2607-WOM 2606-WOM P-42 P-4 I P-4' P-38 Mudstone Mudstone Mudstone Mudstone Mudstone, phosphatic and chert 2605-WOM 2604-WOM 2603-WOM 2602-WOM 2601-WOM P-3 Mudstone and phosphatic mudstone Mudstone, phosphatic; foe. col. no. 48-JES-192 1190- RPS 1189- RPS Lot no. 1262. III - Idaho 6
P-35 P-34 Mudstone Mudstone 1188- RPS 1187-WOM P-33 Mudstone 1186-WOM - 1186-WOM is interrupted in trench, possibly due to a fault, and next few beds below are weathered and hard to distinguish. P-32 P-31 Mudstone, phosphatic Mudstone, phosphatic 1199-WOM 1198-WOM P-30 P-29 P-ze P-27 P-26 P-zs P-24 P-23 P-22 P-21 Mudstone Phosphate rock, argilLaceous Phosphate rock, argillaceous Phosphate rock and mudstone Mudstone, phosphatic Chert Phosphate rock, argillaceous; fos. col. no. 48-JES-191 Phosphate rock Phosphate rock Phosphate rock 1197-WOM 1975- RGW 1974- RGW 1973- RGW 1972- RGW 1971- RGW 1196- RPS 1195- RPS 1194- RPS 1193- RPS 1, 010. 86 1, 033. 06 1, 041. 60 1, 066. 80 1, 080. 88 1, 090. 90 1, 142. 58 P-20 P-19 P-18 P-17 P-16 Phosphate rock, argillaceous, and phosphatic mudstone Mudstone and phosphatic mudstone Phosphate rock Phosphate rock Phosphate rock 1192- RPS 1191- RPS 1185- VEM 1184- VEM 1183- VEM
7,5 1, 154.98 1, 159. 21 1, 194. 81 1, 214. 62 1, 271. 40 P-15 P-14 P-13 P-12 Phosphate rock Mudstone and argillaceous phosphate rock Mudstone and phosphate rock Chert lens Phosphate rock and phosphatic mudstone 1182- VEM 1181- VEM 1173- RAG 1172- RAG (0. 0-0. 25) 1,309.32 1, 323. 53 1, 349. 13 1, 375. 91 P-Ii P-10 P. 9 P- 8 P. 7 Phosphate rock and phosphatic mudstone Mudstone, phosphatic Phosphate rock Mudstone, phosphatic Phosphate rock and cherty phosphate rock 1171- RAG 1163- RPS 1162- RPS 1161- RPS 1155- RLP 1, 413. 03 1, 437. 41 1, 472. 28 1. 481. 64 1, 546. 24 P- 6 Phosphate rock 1154- RLP 1, 619. 72 P. 5 Phosphate rock 1153- RLP 1, 660. 88 P. 4 Chert and phosphatic mudstone 1152- RLP 1, 667. 43 P- 3 Phosphate rock 1151- RLP 1, 714. 98 PMudstone 1160-WOM 1,716.42 P- 1 Mudstone, phosphatic 1159-WOM 1, 741. 07 Cumulative data incomplete due to missing information. Computations start from zero after interruption. Note incompleteness of cumulative data. Lot no. 1262. Ui - Idaho 7 1111101110M,
Chemical analyses percent) Cumulative Thickness I Bed Sample Thickness Loss on Acid thickness percent P70_,. Rock description no. no. (feet) P205 A1203 Fe2O3 ignition insoluble (feet) (cumulatiter Wells formation—top beds only Cw-1 hert 1158-WOM Cw-2
udstone 1157-WOM Unit 1157-WOM contains gouge and breccia, possibly formed by faulting. CW-3 imestone, fos. col. no. 48-JES-190 1156-W0M Lot no. 1262. III - Idaho 8
R BLACKFOOT NARROWS, IDAHO. LOT NO. 1261. Phosphatic shale member of Phosphoria formation sampled in trench at Blackfoot Narrows approximately 500 yards north of road, sec. 24, T. 7 S., R. 43 E., Caribou County, Idaho, on west limb of Dry Valley anticline. Beds strike N. 70 W. and dip 70* S. Section measured by F. W. 0' Malley, R. A. Smart, and R. P. Sheldon and sampled by R. G. Waring in August 1948. Samples analyzed for P,05 and acid insoluble by U. S. Bureau of Mines Laboratory, Albany, Oregon, and for other constituents by Trace Elements Section Laboratory, U. S.Vdological Survey, Washington, D. C. Bed Chemical anal ses . rcent Cumulative Thickness x Sample Thickness Rock description oss on ci thickness percent P20, no. no. (feet) A1203 Fe2O3 P205 ignition insoluble (feet) (cumulative) Rex member of Phosphoria formation-basal beds only R Che t, argillaceous 1940-WOM a R Mud - tone, cherty 1939- WOM Mud tone 1938-WOM RR- Che t, argillaceous 1937-WOM Mud tone 1936-WOM R Che t 1935-WOM R2 Mud . tone 1934-WOM R1 Che t 1933-WOM Phosphatic shale member of Phosphoria formation P-114 Mud tone, calcareous, phosphatic 1932-WOM P-113 Mud tone 1931-WOM P-112 Mud tone 1950-WOM P-111 Mud tone; fos. col. no. 48-JES-147 I 1949-WOM P-110 Pho phate rock, argillaceous 1948-WOM P-109 Mud tone; fos. col. no. 48-JES-146 1947-WOM P-108 Mud tone; fos. col. no. 48-JES-145 1946-WOM P-107 Pho phate rock 1945-WOM P-106 Pho phate rock, argillaceous 1944-WOM P-105 Mud tone, phosphatic 1943-WOM P-104 Pho phate rock 1942-WOM P-103 Mud tone 1941-WOM P-102 Pho phate rock 1930-WOM P-101 Pho phate rock 1929-WOM P-100 Pho phate rock 1960-WOM PPho phate rock, argillaceous; fos. col. no. 48-JES-144 1959-WOM P- 98 Pho phate rock 1958-WOM P- 97 Pho phate rock 1957-WOM P- 96 Pho phate rock 1956-WOM 1 Fossil collection made by J. E. Smedley, Paleontology and Stratigraphy Branch, U. S. Geological Survey. Lot no. 1261. UI - Idaho 9
Chemical anal ses rcent Cumulative Thickness x Bed Rock description no. Sample Thickness Loss on no. (feet) P205 A1203 Fe2O3 ignition insoluble thickness (feet) percent P204 (cumulative)- , P- 95 Phosphate rock, argillaceous, calcareous 1955-WOM P- 94 Mudstone; fos. col. no. 48-JES-143 1954-W0M P- 93 Mudstone, phosphatic 1953-WOM P- 92 Mudstone 1952-WOM P- 91 Mudstone, phosphatic, and argillaceous phosphate rock 1951-WOM P. 90 Mudstone, phosphatic 1964-WOM P. 89 Mudstone; fos. col. nos. 48-JES-142 and 48-JES-141 1963-WOM P. 88 Mudstone, phosphatic 1962-WOM P- 87 Mudstone, phosphatic 1961-W0M P- 86 Mudstone, phosphatic; fos. col. no. 48-JES-140 1928- RAS P. 85 Mudstone; fos. col. no. 48-JES-139 1927- RAS P- 84 Mudstone 1926- RAS FL 83 Limestone. phosphatic 1)- 82 Mudstone 1925- RAS 1924- RAS P- 81 Mudstone
1923- RAS P- 80 Phosphate rock, argillaceous FL 79 Mudstone
1922- RPS 1921- RPS P" 78 Mudstone and argillaceous phosphate rock 1920- RPS l..). 77 Mudstone and phosphatic mudstone P- 76 Phosphate rock and phosphatic mudstone 1919- RAS 1918- RAS P. 75 Mudstone. phosphatic 1917- RAS P- 74 Mudstone, phosphatic; fos. col. no. 48-JES-138 1916- RAS f." 73 Mudstone, phosphatic Mudstone 1877- RAS
1880- RAS ' 71 Mudstone
1879- RAS P- 70 Mudstone 1878- RAS !," 69 Mudstone 1876-WOM ' 68 Phosphate rock, argillaceous P- 67 Mudstone
1875-Wom 1874-Wom
P- 66 Mudstone 1873-WOM P- 65 Mudstone and phosphatic mudstone P- 64 Mudstone
1872-Wom
1871-WOM P- 63 Mudstone P- 62 Mudstone P- 61 Phosphate rock, argillaceous
1915-Wom
1914-WOM 1913-WOM Lot no. 1261 III - Idaho 10 1.0 11.. 0 101
P- 60 P- 59 P- 58 P. 57 P- 56 Mudstone Phosphate rock, argillaceous Mudstone Phosphate rock, argillaceous Mudstone 1912-WOM 1911-WOM 1910-WOM 1909-WOM 1908-WOM P- 55 P- 54 P- 53 P- 52 P- 51 Phosphate rock Mudstone Phosphate rock Mudstone Phosphate rock, argillaceous 1907-WOM 1906-WOM 1905-WOM 1904-WOM 1903-WOM 1,003.21 P- 50 P- 49 P- 48 P- 47 P- 46 Mudstone Mudstone Mudstone. phosphatic Mudstone Mudstone 1902-WOM 1901-WOM 1900-WOM 1899-WOM 1898-WOM 1,009.37 1,009.85 1,022.69 1,023.05 1,026.57 P. 45 P- 44 P- 43 P- 42 P- 41 Mudstone, phosphatic Mudstone, phosphatic Mudstone Mudstone, phosphatic Mudstone, phosphatic 1897-WOM 1896-WOM 1895-WOM 1894-WOM 1893-WOM 1,069.80 1,095.55 1,096.59 1,108.71 1,133.61 P- 40 P- 39 P- 38 P- 37 P- 36 Mudstone and chert Mudstone, phosphatic Mudstone; fos. col. nos. 438-JES-137 and 48-JES-131 Mudstone; fos. col. no. 48-JE3-130 Mudstone 1892-WOM 1891-WOM 1890-WOM 1889-WOM 1888-WOM .11,101 1,139.55 1,163.35 1,176.95 1,178.82 1,193.02 P- 35 P- 34 P- 33 P- 32 Mudstone; fos. col. no. 48-JES-132 Mudstone Mudstone; fos. col. no. 48-JES-129 Mudstone 1887-WOM 1886-WOM 1885-WOM 1884-WOM 1,195.18 1,203.16 1,223.51 1,223.91 p- 31 p- 30 P- 29 P- 28 P. 27 Mudstone; fos. col. no. 48-JES-133 Limestone, argillaceous, phosphatic; fos. col. no. 48-JES-134 Mudstone, phosphatic Mudstone, phosphatic Mudstone 1883-WOM 1882-WOM 1881-WOM 1870-WOM 1869-WOM 1,224.87 1,260.39 1,266.54 1,314.84 1,318.44 P- 26 P- 25 P- 24 /1)- 23 P- 22 Mudstone. phosphatic Mudstone, phosphatic; fos. col. no. 48-JES-135 Phosphate rock, argillaceous Phosphate rock Mudstone, phosphatic 1868-WOM 1867-WOM 1866-WOM 1865-WOM 1864-WOM 1,332.04 1,367.23 1,412.83 1,449.31 1,481.29 p- 21 P. 20 Phosphate rock Mudstone, phosphatic, and argillaceous phosphate rock 1863 -WOM 1862-WOM 1,505.41 1,524.41 111 - Idaho 11 Lot no. 1261.
Chemical anay l ses (percent) Cumulative Thickness x Bed Sample Thickness Acid thickness percent P20, Rock description Loss on no. no. (feet) Al 0 Fe 0 (cumulative)" ignition insoluble (feet) P- 19 P- 18 P- 17 P- 16 P- 15 Mudstone, phosphatic, and argillaceous phosphate rock Mudstone, phosphatic Phosphate rock Phosphate rock Phosphate rock, argillaceous 1861-WOM 1860-WOM 1859-WOM 1858-WOM 1857-WOM P- 14 P- 13 P- 12 P.- 11 P- 10 Phosphate rock Phosphate rock Phosphate rock, argillaceous Phosphate rock Phosphate rock, calcareous 1856-WOM 1855-WOM 1854-WOM 1853-WOM 1852-WOM O. 85 PP.- P1)- P9 Phosphate rock Phosphate rock, argillaceous, fos. col. no. 48-JES-136 Phosphate rock Phosphate rock Phosphate rock 1851-WOM 1840-WOM 1839-WOM 1838-WOM 1837-WOM PP- PP- Phosphate rock Mudstone Mudstone Phosphate rock 1836-WOM 1835-WOM 1834-WOM 1833-WOM Wells formation-top beds only CwLimestone 1832-WOM Cw- 2 Limestone 1831-WOM O. 61 1, 549. 69 1, 563. 37 1, 589. 02 1, 675. 42 1, 682. 62 1, 765. 42 1, 867. 42 1, 872. 61 1,905. 17 I, 914. 82 1, 971. 42 1, 981. 62 2, 055. 98 2, 080. 01 2, 148. 01 2, 255. 11 2, 256. 37 2, 257. 97 2, 268. 08 Lot no. 121,6i, III - Idaho 12
NORTH DRY VALLEY, IDAHO. LOT NO. 1259. Part of phosphatic shale member of Phosphoria formation sampled in bulldozer trench on west slope of North Dry Valley about 100 feet above valley bottom, sec. 31, 'T. 7 S., R. 44 E., Caribou County, Idaho, on east limb of Schmid syncline. Section measured by R. A. Hoppin, D. F. Davidson, R. P. Sheldon, and F. W. 0' Malley and sampled by R. A. Smart and R. G. Waring in August 1948. Samples analyzed for P2Cos and acid insoluble by US. Bureau of Mines Laboratory, Albany, Oregon, and for other constituents by Trace Elements Section Laboratory, U. Ueological Survey, Washington, D. C. , Chemical anal ses - rcent Cumulative Thickness x Bed Sam Thickness Sample Loss on thickness percent P,O, no. (feet) P205 A1203 Fe2O3 ignition insoluble (feet) (cumulatiVe) no. Rock description Rex member of Phosphoria formation-basal beds only R4 Chert 1697-WOM
R3 Chert, argillaceous 1696-WOM 9923.. 37 Z. 34 R2 Chert, argillaceous 1695-WOM R1 Chert 1694- WOM Phosphatic shale member of Phosphoria formation-base not exposed P-101 Mudstone; fos. col. no. 48-JES-164 1693-WOM P-100 Mudstone, fos. col. no. 48-JES-163 1692-WOM P- 99
Phosphate rock, argillaceous 1691-VrOM P- 98 Mudstone; fos. col. no. 48-JES-162 1690-WOM P- 97 Phosphate rock 1689-WOM P- 96 Phosphate rock, argillaceous 1688-WOM P- 95 Phosphate rock 1687-WOM P- 94 Mudstone 1686-WOM P- 93 Phosphate rock 1685-WOM P- 92 Mudstone, phosphatic 1684-WOM P- 91 Phosphate rock 1683-WOM P- 90 Phosphate rock 1682-WOM P. 89 Mudstone, phosphatic; fos. col. no. 48-JES-161 1681-WOM P- 88 Phosphate rock 1661 -WOM P- 87 Mudstone, phosphatic 1660 -WOM P- 86 Phosphate rock 1659-WOM P- 85 Phosphate rock 1658-WOM P- 84 Phosphate rock; fos. col. no. 48-JES-160 1657-W0M P- 83 Phosphate rock, argillaceous; fos. col. no. 48-JES-I59 1656-WOM P. 82 Phosphate rock, argillaceous; fos. col. no. 48-JES-158 1655- RPS P- 81 Mudstone, phosphatic 1654- RPS 1 Fossil collection made by J. E. Smedley, Paleontology and Stratigraphy Branch, U. S. Geological Survey. Lot no. 1259 . III - Idaho 13
Bed no. P- 80 P- 79 P- 78 P- 77 P- 76 P.- 75 P- 74 P- 73 P- 72 P- 71 P- 70 P- 69 P- 68 P- 67 P- 66 P- 65 P- 64 P.- 63 P- 62 P- 61 P- 60 P- 59 P- 58 P- 57 P- 56 P- 55 P- 54 P- 53 P- 52 P- 51 P- 50 P.- 49 P- 48 P. 47 P- 46 P- 45 P- 44 P- 43 P- 42 Rock description Mudstone, phosphatic Phosphate rock, argillaceous Mudstone and phosphate rock Mudstone Mudstone Phosphate rock, argillaceous Mudstone, phosphatic; fos. col. no. 48-JES-157 Mudstone, phosphatic Phosphate rock, argillaceous Mudstone; fos. col. no. 48-JES-156 Mudstone, phosphatic Mudstone; fos. col. no. 48-JES-155 Mudstone Mudstone, phosphatic Phosphate rock, argillaceous Mudstone, phosphatic; fos. col. no. 48-JES-165 Mudstone Mudstone Phosphate rock, argillaceous Mudstone; fos. col. no. 48-JES-154 Mudstone, phosphatic Phosphate rock, argillaceous Mudstone, phosphatic Mudstone, phosphatic Mudstone Mudstone Mudstone Mudstone Mudstone Mudstone, phosphatic Mudstone Limestone, argillaceous Mudstone, fos. col. no. 48-JES-153 Mudstone Phosphate rock Mudstone, phosphatic Mudstone Mudstone Mudstone, phosphatic Cumulative Thickness Chemical ana.lyses (percent) Sample Thickness Loss on Acid thickness percent P705 no. (feet) A1203 Fe203 ignition insoluble (feet) (cumulative) 1653- RPS 1652- RPS 1651- RPS 1650- RPS 1700-WOM 1699-WOM 1698-WOM 1720-WOM 1719-WOM 1718-WOM 1717-WOM 1716-WOM 1715-WOM 1714-WOM 1713-WOM 1712-WOM 1711 -WOM 1727- DFD 1726- DFD 1725- DFD 1724- DFD 1723- DFD 58,8 1722- DFD 1721- DFD 1710- DFD 1709- DFD 1708- DFD 1707- DFD 1706- DFD 1705- DFD 1704- DFD 1703- DFD 89;1 1702.- DFD 1701- DFD 1,023.71 1680- DFD 1,041.09 1679- DFD 1,048.23 1678- DFD 1,053.51 1677- DFD 1,062.60 1676- DFD LII - Idaho 14 Lot no. 1259.
P°11 P. 41 P- 40 P- 39 P- 38 P- 37 P- 36 P- 35 P- 34 P. 33 P- 32 P- 31 P- 30 P- 29 P- 28 P- 27 P. 26 P- 25 P- 24 P- 23 P- 22 P- 21 P- 20 P- 19 P- 18 P- 17 P- 16 P- 15 P- 14 P- 13 P- 12 P- 11 P- 10 P- 9 P- 8 P- 7 P- 6 P. P. 4 P- 3 P- 2 P.. Mudstone, phosphatic Mudstone, phosphatic Mudstone Mudstone Mudstone, phosphatic; fos. col. no. 48-JES-152 Mudstone Mudstone Mudstone Chert Mudstone Mudstone; fos. col. no. 48-JES-151 Mudstone Mudstone Mudstone Mudstone Mudstone, phosphatic Mudstone; fos. col. no. 48-JES-150 Phosphate rock, argillaceous Phosphate rock, argillaceous; fos. col. no. 48-JES-149 Mudstone, phosphatic Mudstone, phosphatic; fos. col. no. 48-JES-148 Mudstone, phosphatic Phosphate rock, argillaceous Mudstone, phosphatic Mudstone Mudstone, phosphatic Mudstone, phosphatic Phosphate rock Mudstone, phosphatic Mudstone, phosphatic Phosphate rock, argillaceous Phosphate rock, argillaceous Phosphate rock Phosphate rock Phosphate rock and mudstone Phosphate rock Phosphate rock, argillaceous Phosphate rock Phosphate rock, argillaceous, calcareous Phosphate rock Phosphate rock 1675- DFD 1674- DFD 1673- DFD 1672- DFD 1671- DFD 1649- DFD 1648- DFD 1647- DFD 1646- DFD 1645-DFD 1644- DFD 1643- DFD 1642- DFD 1641- DFD 1640- DFD 1670-WOM 1669-WOM 1668-WOM 1667-WOM 1666-WOM 1665-WOM 1664-WOM 1663-WOM 1662-WOM 1634-WOM 1635-WOM 1636-WOM 1637-WOM 1638-WOM 1639-WOM 1738- RAH 1737- RAH 1736- RAH 1735- RAH 1734- RAH 1733-WOM 1732-WOM 1731-WOM 1730-WOM 1729-WOM 1728-WOM 13,4
1,098.27 1,106.77 1,108.21 1,151.11 1,161.12 1,163.34 1,165.87 1,166.91 1,170.90 1,179.15 1,182.23 1,188.71 1,190.78 1,192.13 1,217.24 1,230.88 1,257.48 1,269.90 1,287.90 1,324.01 1,360.41 1,444.89 1,455.34 1,464.62 1,473.32 1,481.72 1,496.32 1,509.72 1,527.96 1,552.80 1,590.40 1,609.72 1,644.70 1,667.70 1,791.30 1,805.93 1,823.45 1,888.27 1,994.67 Lot no. 1259. III p Idaho 15
KENDALL CANYON, IDAHO. LOT NO. 1258. Phosphoria formation and upper part of Wells formation sampled in bulldozer trench on northwest side of Kendall Canyon approximately 100 feet above creek, sec. 28, T. 7 S., R. 44 E., Caribou County, Idaho, on west limb of Georgetown syncline. Beds strike N. 30' W. and dip 70' W. Section measured by R. A. HopPin, D. F. Davidson, R. P. Sheldon, and F. W. a Malley and sampled by R. A. Smart and R. G. Waring in August 1948. Samples analyzed for P20c and acid insoluble by U. S. Bureau of Mines Laboratory, Albany, Oregon, and for other constituents by Trace Elements Section Laboratory, U. 5 Geological Survey, Washington, D. C. Cumulative Thickness x Chemical anal ses rcent Bed Sample Thickness oss on thickness percent P20, no. Rock description no. (feet) P205 Al2 03 Fe 20 3 ignition insoluble (feet) (cumulative) Rex member of Phosphoria formation-top not exposed R-11 Mudstone 1633-W0M R-10 Mudstone 1632-WOM R- 9 Mudstone 1631-WOM R- 8 Mudstone, phosphatic 1630-W0M R- 7 Mudstone 1629-W0M R- 6 Limestone, argillaceous 1628-WOM 0,2 Mudstone, calcareous; fos. col. no. 48-JES-1231 1627-WOM R- 4 Mudstone 1626-W0M R- 3 Mudstone 1625- DFD R- 2 Mudstone; fos. col. no. 48-JES-121 1624- DFD ' R- 1 Chert 1623- DFD Phosphatic shale member of Phosphoria formation P-99 Phosphate rock, argillaceous; fos. col. no. 48-JES-122 1622- DFD
P-98 Mudstone; fos. col. no. 48-JES-120 1621- DFD P-97 Mudstone; fos. col. no. 48-JES-119 1620- DFD P-96 Mudstone; fos. col. no. 48-JES-118 1619- DFD P-95 Mudstone 1618- DFD P-94 Phosphate rock 1617- DFD 0.61 0.32 P-93 Mudstone, phosphatic 1616- DFD P-92 Mudstone 1615- DFD P-91 Phosphate rock and mudstone 1614- DFD P-90 Phosphate rock 1613- DFD P Phosphate rock 1612- DFD P-88 Mudstone, phosphatic 1609-WOM P -87 Phosphate rock 1608-WOM P-86 Phosphate rock 1607-W0M P-85 Phosphate rock, argillaceous 1606-WOM P-84 Mudstone, phosphatic 1605-WOM Lot no. 1258. 11.1 - Idaho 16
P-83 Phosphate rock P-82 Phosphate rock P-81 Phosphate rock P-80 Phosphate rock P-79 Phosphate rock, argillaceous; fos. col. no. 48-JES-117 1604-WOM 1603-WOM 1602-WOM 1601 -WOM 1600-WOM 0.51 0.51 0.96 0.51 P-78 Mudstone, phosphatic; fos. col. no. 48-JES-116 P-77 Mudstone P-76 Mudstone P-75 Mudstone, phosphatic P-74 Phosphate rock, argillaceous 1579- RAH 1578- RAH 1577- RAH 1599-WOM 1598-WOM P-73 Mudstone and argillaceous phosphate rock; fos. col. no. 48-JES-115 P-72 Phosphate rock, argillaceous P-71 Mudstone; fos. col. no. 48-JES-114 P-70 Mudstone, phosphatic P-69 Mudstone; fos. col. no. 48-JES-113 P -68 Mudstone P-67 Mudstone, phosphatic P-66 Mudstone, phosphatic P-65 Mudstone P-64 Mudstone, phosphatic P-63 Limestone, argillaceous P-62 Mudstone and argillaceous phosphate rock; fos. col. no. 48-JES-112 JP-61 Mudstone; fos. col. no. 48-JES-111 P-60 Mudstone P-59 Mudstone, phosphatic 1597-WOM 1596-WOM 1595-WOM 1594- WOM 1593-WOM 1592-WOM 1591 -WOM 1590- WOM 1589 -WOM 1588-WOM 1587- WOM 1586-WOM 1585-WOM 1611- DFD 1569- DFD P-58 Phosphate rock, argillaceous; fos. col. no. 48-JES-110 P-57 Mudstone, phosphatic P-56 Mudstone P-55 Mudstone P-54 Mudstone P-53 Phosphate rock, argillaceous P-52 Mudstone P-51 Phosphate rock P-50 Mudstone P-49 Phosphate rock, argillaceous P-48 Mudstone; fos. col. no. 48-JES-109 P-47 Mudstone 1568- DFD 1567- DFD 1566- DFD 1565- DFD 1 584-WOM 1583- WOM 1564- DFD 1610- DFD 1563- DFD 1562- DFD 1561- DFD 1560- DFD 1, 005.85 3,013.35 1, 014. 34 1 Fossil collection made by J. E. Smedley, Paleontology and Stratigraphy Branch, U. S. Geological Survey. III - Idaho 17 Lot no. 1258.
Bed no. Rock description Sample no. Thickness (feet) P203 Chemical anal ses ( rcent) oss on A1203 F e.. 0 z. 3 ignition insoluble Cumulative thickness (feet) Thickness x percent P20,
P. 46 P- 45 P- 44 P- 43 P- 42 udstone, phosphatic phosphate rock, argillaceous, calcareous udstone udstone, calcareous, phosphatic; fos. col. no. 48-JES-108 udstone, calcareous, phosphatic 1582-WOM 1581-WOM 1580-WOM 1559-WOM 1558-W0M 1, 018. 70 1,044.95 1, 061. 97 1,097. 52 1, 119. 02 P- 41 P- 40 P- 39 P. 38 P. 37 udstone, calcareous; fos. col. no. 48-JES-102 imestone; fos. col. no. 48-JES-100 udstone; fos. col. no. 48-JES-101 udstone udstone, phosphatic; fos. col. no. 48-JES-99 1557-WOM 1556-WOM 1555-WOM 1554 -WOM 1 553-WOM O. 3
1, 122. 42 1, 123. 53 1, 130. 43 1, 138. 23 1, 152. 81 P- 36 P. 35 P. 34 P. 33 P. 32 udstone udstone, phosphatic; fos. col. no. 48-JES-98 udstone, phosphatic; fos. col. no. 48-JES-97 phosphate rock, argillaceous, calcareous udstone, phosphatic 1552-WOM 1551-WOM 1550-WOM 1549- DFD 1548- DFD
1, 153. 83 1, 181. 83 1, 213. 29 1, 223. 37 1, 230. 17 P- 31 P- 30 P- 29 P- 28 P- 27 udstone, phosphatic; fos. col. no. 48-JES-96 phosphate rock, argillaceous udstone and phosphate rock phosphate rock and mudstone udstone, phosphatic 1547- DFD 1546- DFD 1545- DFD 1544- DFD 1576- RAH 1, 234. 82 1, 299. 83 1, 323. 41 1, 341. 89 1, 356. 17 P. 26 P- 25 P. 24 P. 23 P- 22 'phosphate rock udstone, phosphatic ' phosphate rock udstone, phosphatic udstone, phosphatic 1575- RAH 1574- RAH 1573- RAH 1572- RAH 1571- RAH 1,410.97 1, 422. 22 1, 438. 07 1, 452. 37 1, 483. 88 P. 21 P- 20 P- 19 P - 18 P. 17 udstone and argillaceous phosphate rock 'phosphate rock and mudstone 'phosphate rock 'phosphate rock 'phosphate rock, argillaceous and mudstone; fos. col. no. 48-JES-95 1570- RAH 1509- RAH 1 .508- RAH 1507- RAH 1506- RAH O. 85 1, 495. 85 1, 509. 83 1, 559. 93 1, 613. 03 1, 631. 83 P. 16 p- 15 P- 14 udstone 'phosphate rock ' phosphate rock 1505- RAH 1504- RAH 1503- RAH 1, 634. 48 1,697. 18 1, 715. 08 Lot no. 1258. III - Idaho 18
1,795.08 P- 13 Phosphate rock; fos. col. no. 48-JES-94 1502- RAH P- 12 Mudstone and argillaceous phosphate 1,824.12 rock, fos. col. no. 48-JES-93 1501- RAH 1,844.55 P- 11 Phosphate rock, argillaceous 1500- RAH 1,923.14 Pto Phosphate rock; fos. col. no. 48-JES-92 1539 -WOM P- 9 Phosphate rock, argillaceous; fos. col. 1,936.64 no. 48-JES-91 1538-WOM 2,057.26 P- 8 Phosphate rock. fos. col. no. 48-JES-90 1537-WOM P- 7 Phosphate rock 1536-WOM 0.94 0.38 P1.3 2,168.39 6 Phosphate rock 1535-WOM 2,169.17 P- 5 Mudstone 1534 - WOM P- 4 Limestone, argillaceous 1533- WOM P157.3 2,170.05 3 Mudstone 1532- RPS P49.6 2,173.53 Mudstone 1531- RPS P10.0 2,185.88 1 Phosphate rock, calcareous and chert 1530- RPS Wells formation-upper part only Cw- 1 Limestone 999DFD Cw- 2 Limestone; fos. col. no. 48-JES-89 1543- DFD CI" 3 Limestone; fos. col. no. 48-JES-88 1542- DFD Cw- 4 Limestone; fos. col. no. 48-JES-87 1541- DFD Cw- 5 Limestone, argillaceous; fos. col. no. 48-JES-86 1540- DFD Cw- 6
Limestone and chert 1519- DFD Cw- 7 Limestone 1518- DFD C Iv- 8 Limestone 1517- DFD CI" 9 Mudstone and limestone 1516- DFD Z. 5
Cw-10 Mudstone and argillaceous limestone 1515- DFD Cw-11 Limestone and mudstone 1514- DFD
Cw-12 1513- DFD Limestone and chert Cw-13 Limestone, argillaceous 1512- DFD
Cw-14 Limestone 1511- DFD C w -15 Mudstone 1510- DFD Cw-16 Limestone and chert 1499- DFD Cw-ii Limestone, sandy 1498- DFD Cw-18 Sandstone, calcareous 1497- DFD Cw-I9 Sandstone, calcareous 1496- DFD Cw-20 Limestone, argillaceous 1495- DFD Cw-21 Limestone and chert 1494- DFD Cw-22 Mudstoine, calcareous 1493- DFD Lot no. 1258. III - Idaho 19
on
SLUG CREEK VALLEY, IDAHO. LOT NO, 1278. Part of phosphatic shale member of Phosphoria formation cored in diamond drill hole no. 7 on crest of hill rising above Slug Creek Valley, sec. 30, T. 8 S., R. 44 E., Caribou County, Idaho, on west limb of Schmid syncline. Beds strike north and dip 8 E. Hole drilled in September and October 1948 by U. S. Bureau of Mines, A. E. Long in charge, and core measured and sampled by D. F. Davidson. Samples analyzed for P205 and acid insoluble by U. S. Bureau of Mines Laboratory, Albany, Oregon. Chemical analyses Bed Sample Thickness (percent no. Rock description no. (feet) P205 insoluble Phosphatic shale member of Phosphorta formation-partial section only P-103 Mudstone 2722-DFD P102 Core missing Mudstone 2723-DFD (0.4) Sample 2723-DFD represents part of bed P-102. P-101 Mudstone 2724-DFD P-100 Mudstone ' 2725-DFD P- 99 Core missing Phosphate rock, argillaceous 2726-DFD (0.6) Sample 2726-DFD represents part of bed P-99. 2727-DFD P. 98 Phosphate rock P- 97 Core missing P- 96 Phosphate rock and mudstone 2728-DFD P- 95 Core missing Mudstone 2729-DFD (0.7) Sample 2729-DFD represents part of bed P-95. 2730-DFD P- 94 Phosphate rock, argillaceous P- 93 Phosphate rock, argillaceous 2731 -DFD P- 92 Core missing P. 91 Phosphate rock, argillaceous 2732-DFD P- 90 Core missing P- 89 Mudstone, phosphatic 2733-DFD P- 88 Mudstone 2734-DFD P- 87 Mudstone, phosphatic 2735-DFD P. 86 Mudstone, phosphatic 2736-DFD
P- 85 Core missing P. 84 Mudstone, phosphatic 2737-DFD P- 83 Mudstone, phosphatic 2738-DFD Cumulative thickness (feet) Thickness x percent P205 (cumulative)
Lot no. 1278. III - Idaho 20
P- 82 Mudstone P- 81 Mudstone, phosphatic P- 80 Mudstone P- 79 Core missing P- 78 Mudstone, phosphatic P- 77 Mudstone P- 76 Mudstone, phosphatic P- 75 Core missing P- 74 Mudstone P- 73 Mudstone P- 72 Mudstone, phosphatic P- 71 Mudstone P- 70 Core missing P- 69 Mudstone P- 68 Core missing P- 67 Mudstone P- 66 Core missing P- 65 Mudstone P- 64 Mudstone P- 63 Mudstone P- 62 Mudstone, phosphatic P- 61 Mudstone P- 60 Mudstone, phosphatic P- 59 Core missing P. 58 Mudstone, phosphatic P- 57 Mudstone, phosphatic P- 56 Mudstone, phosphatic P- 55 Mudstone P- 54 Mudstone P- 53 Mudstone P- 62 Mudstone P- 51 Mudstone P. 50 Mudstone P- 49 Mudstone P- 48 Mudstone P- 47 Mudstone P- 46 Mudstone, phosphatic, calcareous P- 45 Mudstone P- 44 Mudstone, phosphatic P- 43 Mudstone, calcareous P- 42 Mudstone, phosphatic P. 41 Phosphate rock, argillaceous, calcareous P- 40 Limestone, argillaceous P- 39 Mudstone, phosphatic 2739 -DFD 1740-DFD 2741 -DFD 2742-DFD 2743-DFD 2744 -DFD 2745-DFD 2746-DFD 2747-DFD 2748-DFD 2749-DFD 2750 -DFD 2751-DFD 2752-DFD 2753-DFD 2754-DFD 2755-DFD 2756-DFD 2757-DFD 2758-DFD 2759-DFD 2760-DFD 2761 -DFD 2762-DFD 2763-DFD 2764 -DFD 2765-DFD 2766-DFD 2767 -DFD Z768-DFD 2769-DFD 2770-DFD 2771-DFD 2772-DFD 2773-DFD 2774 -DFD 2775-DFD 2776 -DFD 2. Z SO. 7 30. Z 51,5 Lot no. 1278 111 - Idaho 21
tion Bed no. P- 38 P- 37 P- 36 P- 35 P- 34 P- 33 P- 32 P- 31 P. 30 P. 29 P- 28 P- 27 P- 26 P- 25 P- 24 P- 23 P- 22 P- 21 P- 20 P- 19 P- 18 P- 17 P- 16 P- 15 P. 14 P- 13 P. 12 P. 11 P- 10 P - P8 P - P6 P P4 P - P2 P1 Rock description Mudstone, phosphatic Mudstone, phosphatic Mudstone, calcareous, phosphatic Limestone Phosphate rock, argillaceous, calcareous Core missing Phosphate rock, calcareous Limestone and phosphate rock Limestone Phosphate rock Limestone Mudstone, phosphatic Mudstone, calcareous, phosphatic Limestone, argillaceous Phosphate rock Phosphate rock Phosphate rock, argillacaeous Limestone, argillaceous Phosphate rock Phosphate rock, argillaceous Phosphate rock Phosphate rock Phosphate rock Phosphate rock, calcareous Phosphate rock, calcareous Phosphate rock, argillaceous Limestone, phosphatic Limestone Phosphate rock Phosphate rock Phosphate rock Phosphate rock Phosphate rock Mudstone Limestone, argillaceous Mudstone Phosphate rock Phosphate rock Sample no. 2777-DFD 2778-DFD 2779-DFD 2780-DFD 2781-DFD 2782-DFD 2783-DFD 2784-DFD 2785-DFD 2786-DFD 2787-DFD 2788-DFD 2789-DFD 2790-DFD 2791-DFD 2792-DFD 2793-DFD 2794-DFD 2795-DFD 2796-DFD 2797-DFD 2798-DFD 2799-DFD 2800-DFD 3036-DFD 3020-DFD 3024-DFD 2524-DFD 2525-DFD 2929-DFD 2930-DFD 3028-DFD 3029-DFD 3030-DFD 3031-DFD 3032-DFD 3033-DFD Thickness (feet) ' Chemical analyses rcent) P2o5 insoluble Z3.0 Cumulative thickness (feet) Thickness z percent P205 (cumulative) Lot no. 1278 Ill - Idaho 22
WEST GEORGETOWN CANYON. IDAHO. LOT NO. 1264. Phosphatic shale member of Phosphoria formation sampled in trench on west wall of Georgetown Canyon, SE; sec. 1, T. 10 S., R. 44 E., Bear 12...?ke County, Idaho, on west limb of Georgetown syncline. Beds strike N. 30' E. and dip 50* E. Section measured by D. F. Davidson and F. W. u Malley and sampled by R. A. Smart and R. G. Waring in September 1948. Samples analyzed for P205 and acid insoluble by U. S. Bureau of Mines Laboratory, Albany, Oregon, and for other constituents by laboratories of the U. S. Geological Survey, Geochemistry and Petrology Branch, Washington, D. C. Chemical anal ses rcent Cumulative Thickness x Bed Sample Thickness Loss on thickness percent P,O no. Rock description A1203 , Fe2O3 no. (feet) P205 ignition insoluble (feet) (cumulatiirer Rex member of Phosphoria formation-basal beds only R- 7 Chert 2640-WOM R- 6 Chert 2639-WOM R- 5 Mudstone 2638-WOM R- 4 Mudstone 2637-WOM R- 3 Chert 2636-WOM R- 2 Chert 2635-WOM R- 1 Chert 2634-WOM Probable fault contact between Rex and Phosphatic shale members. Phosphatic shale member of Phosphoria formation P-86
Mudstotie 2633-WOM P-85
Phosphate rock, argillaceous 2632-WOM P-84 2631-WOM Mudstone Z. 5 .i.,)-83 Mudstone; fos. col. no. 48-JES-2 17 2630-WOM '82 Mudstone; fos. col. no. 48-JES-216 2629-WOM P-81 Mudstone 2628-WOM P-80 Phosphate rock and calcareous phosphatic mudstone 2627-WOM Pr.:79 Mudstone, phosphatic 2626-WOM Phosphate rock 2625-WOM P-77 Phosphate rock, argillaceous 2624-WOM P-76
Phosphate rock 2623-WOM P-75 Phosphate rock 2622-WOM P-74 Phosphate rock, argillaceous 2621-WOM - Pb:73 Mudstone 1811-WOM a- -72 Mudstone, phosphatic; fos. col. no. 48-JES-215 1830-WOM
Mudstone, phosphatic 1180-W0M PMudstone, phosphatic 1179-WOM p7° P69 Mudstone 2895-WOM
Mudstone 2894-WOM Fossil collection made by J. E. Smedley, Paleontology and Stratigraphy Branch, U. S. Geological Survey. Lot no. 1264. Ill - Idaho 23
Chemical anal ses rcent Cumulative Thickness x Bed Sample Thickness no. Rock description (feet) P205 A1203 Fe2O3 Loss on thickness percent P20, no. ignition insoluble (feet) (cumulative P-67 Mudstone 1178-W0M P-66 Mudstone 2649-OM P-65 Mudstone 2648-WOM P-64 Mudstone 2647-WOM P-63 2646-WOM Mudstone, phosphatic, calcareous P-62 P-61 Mudstone 2644-WOM P-60 Mudstone rock 2643-WOM Mudstone 2645-WOM and argillaceous phosphate P-59 Phosphate rock; fos. col. no. 48-JES-214 2642-WOM P-58 Mudstone, phosphatic; fos. col. no. 2641 -WOM 48-JES-213 P-57 2900-WOM Phosphate rock, fos. col. no. 48-JES-212 P-56 2893-WOM Mudstone, phosphatic P-55 2899-WOM Phosphate rock P-54 Mudstone, phosphatic 2898-W0M P-53 2897-WOM Mudstone, phosphatic, calcareous P-52 Mudstone 2896-WOM P-51 Phosphate rock, argillaceous 2892-WOM P-50 2891 -WOM Mudstone Beds P-49 and P-50 are separated by a fault. P-49 Phosphate rock, calcareous, argillaceous 2888-WOM P 2887-WOM Mudstone P-47 Mudstone, phosphatic, calcareous; 2886-WOM fos. col. no. 48-JES-211 P-46 Mudstone, phosphatic; fos. col. no. 2885-WOM 48-JES-210 (2.4) Limestone concretion, argillaceous 2884-WOM P-45 Chert 2883-WOM P-44 Mudstone 2882- WOM P-43 2881 -WOM Mudstone; fos. col. no. 48-JES-209 P-42 Mudstone; fos. col. no. 48-JES-208 2880-W0M P-41 Mudstone 2879-WOM P-40 Mudstone, phosphatic 2871 -WOM P-Ao 2878-WOM Mudstone, phosphatic 2877-WOM 1,-38 Phosphate rock, argillaceous 2876-WOM ',..37 Mudstone 2875-WOM 4-'36 Mudstone, phosphatic P- 3 r. Mudstone, phosphatic 2928- DFD r-34 Phosphate rock and phosphatic mudstone 2927- DFD 111 - Idaho 24 Lot no. 1264.
P-33 P-32 P-31 P-30 P-29 Mudstone, phosphatic Phosphate rock, argillaceous Phosphate rock, argillaceous Phosphate rock Mudstone, calcareous 2926- DFD 2925- DFD 2924- DFD 2923- DFD 2922- DFD P-28 P-27 P-26 P-25 P-24 Phosphate rock and phosphatic mudstone Mudstone, phosphatic Limestone Mudstone, phosphatic Mudstone, phosphatic 2870- DFD 2869- DFD 2868- DFD 2867- DFD 2866- DFD P-23 P-22 P-21 P-20 Limestone, argillaceous Phosphate rock Phosphate rock Phosphate rock, argillaceous Limestone concretion 2865- DFD 2864- DFD 2863- DFD 2862- DFD 2861- DFD (1.0-1. k.) P-19 P-18 P-17 P-16 Phosphate rock Phosphate rock, argillaceous Mudstone, calcareous, phosphatic Mudstone, phosphatic Limestone concretion; fos. col. no. 48-JES-207 2910- DFD 2909- DFD 2908- DFD 2907- DFD 2906- DFD (0.9) P-15 P -14 P-13 P-12 P-11 Mudstone, phosphatic Phosphate rock Phosphate rock, argillaceous Phosphate rock, argillaceous Phosphate rock, argillaceous 2905- DFD 2904- DFD 2903- DFD 2902- DFD 2901-DFD 1,011.76 1,054.00 1,085.72 1,111.42 P-I0 P. 9 P- 8 P- 7 P- 6 Mudstone, phosphatic Mudstone, phosphatic Phosphate rock, argillaceous Phosphate rock Mudstone, phosphatic 2920- DFD 2919- DFD 2918- DFD 2917- DFD 2916- DFD (15.35 1,118.92 1,132.62 1,190.92 1,299.72 1,323.24 P- 5 P. 4 P- 3 P- 2 P- 1 Phosphate rock, argillaceous Phosphate rock Phosphate rock, argillaceous, calcareous Limestone; fos. col. no. 48-JES-206 Phosphate rock 2915- DFD 2914- DFD 2913- DFD 2912- DFD 2911- DFD 1, 344. 74 1,390.38 1,399.76 1,403.01 1,410.64 Fault contact between Phosphoria and Wells formations. Wells formation Limestone 2921- DFD Lot no. 1264. Il - Idaho 25 fr-
-Jussen - Jackson 3-7530, ext. 80 UNITEL STATES D.,...I.FARIMEIE OF niE INTERIOR Geolog-i cal Survey Waqhington 25, D. C. For Release APRIL 25, 1952 AENOUNCEDENT OF GEOLOGIC MAPS AIT REPORTS RELEASED FOR PUBLIC INSPECTION The GeologicaJ SurvET has released in open files , the following maps and reports on the geology of various parts of Central America, Mexico, and the United States, Copies are available for consultation at the Geological Survey, Room 1033 (Library), General Services Bldg., Washington, D, C., and at other places as listed Copies are not available for distril),Ition unless so indicated 1 Honduras, El Quetzal mine (antimcny), by R. J. Roberts. 8 pp., 3 figs. (excerpt from the unpublished report 'Mineral dep0E-:its of Central American). On file at Geological Survey, Room 4211 !Foreign Geology Branch), General Services Bldg., Washington, D. CI.; and Geological Survey Information Office, Room 468, New Customhouse, Denver, 3olo. 2. Phosphate deposits of the Concepcion del Oro district, Zacatecas, Mexico, by C. L. Rogers, S. Ullo, and F. Tavera, 11 pp., no Preliminary results of a current project of the Point IV program, Technical Cooperation Administra, tion, Department of State, On file at same places as item 1, above; and American Embassy, Mexico, D. F,, Mex. Stratigraphic sections of the Fhosphoria formation in Iaaho (Mild Idaho reoort), by F, W OiMalley and others. 39 pp., no illus, On file at the following Geological Survey offices South 157 Howard Street, Spokane, Wash,; Information Office, Room 506, Federal Bldg., Salt Lake City, Utah: and Montpelier, Idaho, Also on file at Idaho Bureau of Mines and Ceolop5 Moscow, Idaho; Montana Bureau of Mines and Geolcgy, Butte, Mont,, Wyoming Geoloical Laramie, Wyo.; and University of Utah, Salt Lake City, Utah. 4, Geologic map of the Pottsville quadrangle, northern Idaho, by R. E, Wallace and others, 1 map with overlay, no text. On file at Geological Survey, South 157 Howard Street, Spokane, Wash,; Geo logical Survey Information Office, Room 506, Federal BYg., Salt Lake City, Utah; and Idaho Bureau of Mines and Geology, Moscow, Idaho. A magnetic anomaly near Bear Lake, Houghton County, Michigan, .)y J. C. Wrijat, : pp., 2 figs. On file at the following Geological Survey offices Community Bldg., Houghton, Mich Red Jacket Road and Mine Street, Calumet, Mich,, and Room 213, Science
Hall, Univ. of WiEconsin, Madison, Wis. Also on file at Department of GeologN Michigan College of Mines and Tehnolca, Houghton, Mich,; and Geological Sur vey DiviEicn, Mic;higan State Department of Conservation, Lanuing, Idch. The following, two reports were released in open files March 14, 1952, but the listing of the depositories was incomplete in that announcement. The reports aro relistod below, with the correct depositories: 6. Description Z. rock formations and minerals from holes drilled in Tete dos Morts area, Iowa, by A. F . Ivnew , 22 pp., no illus., On file at Geological Survey, Room 213, Science Hail, Univ,, of Wisconsin, Madison, Wis, Geologcal Survv, loom 108, Wisconsin Institute of Technoloi. P1a'Ltevi1le, Wis.; and office of the State Geologist, Iowa Geological Survey, Geology Ahnex, Iowa City, Iowa. 7, :escription oc rock formations ala minerals from holes drilled in Highland area, Wisconsin, by A. E. Flint, 24 pp,, no illus. On file at Ceological Survy, Room 213, Science Hall, Univ. of Wiscom;in Madison, Ws.,; Geological Survey, Room 1C8, Wisconsin Institute of Techmology, Plattevil3e, Wis.; and office of the State Geologist, Wisconsin Geological and Yatural Hitory Survey, Room 115, Scence Hall,
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