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Results of exploration at Lost Creek schroeckingerite deposit, Sweetwater County, Wyoming

Trace Elements Memorandum 288

This report concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission
By:
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Abstract

The U. S. Geological Survey, on behalf of the Atomic Energy Commission, from July 1951 to February 1952, explored the Lost Creek schroeckingerite deposit, Sweetwater County, Wyoming, by means of auger- drilling, trenching, and bucket-drilling. This report presents an estimate of the inferred ore reserves obtained during this exploration. The inferred reserves are presented under three schedules. Schedule A is the reserves calculated for the main schroeckingerite-bearing area; Schedule B is the reserves for the smaller schroeckingerite-bearing area to the north of the main area. The grade and tonnage estimates for both Schedule A and Schedule B are divided into two groups--data for selective mining, and data for bulk-mining. Schedule C presents reserve estimates for a semi- selective mining method and was calculated for four selected blocks in the western half of the main schroeckingerite-bearing area. The inferred reserves of schroeckingerite available for bulk-mining in the area of Schedule A are about 3,000,000 tons that contain 0.005 percent uranium, or about 140 tons of metallic uranium. By bulk-mining, 900,000 tons containing 0.005 percent uranium, or U£ tons of metallic uranium, are available in the area of Schedule B. The inferred reserves available for selective mining in the area of Schedule A are 100,000 tons of schroeckingerite deposits that contain 0.030 percent uranium, or 30 tons of metallic uranium. By selective mining, 35,000 tons of schroeckingerite deposits that contain the 0.030 percent uranium, or 10 tons of metallic uranium, are available in the area of Schedule Bo Semi- selective mining in the four areas of Schedule C will yield about 650,000 tons of rock containing O.008 percent uranium, or 50 tons of metallic uranium.

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Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Results of exploration at Lost Creek schroeckingerite deposit, Sweetwater County, Wyoming
Series title:
Trace Elements Memorandum
Series number:
288
Edition:
-
Year Published:
1952
Language:
English
Publisher:
U.S. Geological Survey
Description:
Report: 26 p.; Plate 1: 47.14 inches x 35.94 inches; Plate 2: 34.02 inches x 68.37 inches; Plate 3: 34.60 inches x 52.89 inches; Plate 4: 35.70 inches x 59.89 inches; Plate 5: 36.02 inches x 43.69 inches; Plate 6: 32.65 inches x 69.33 inches; Plate 7: 34.40 inches x 41.53 inches
Country:
United States
State:
Wyoming
County:
Sweetwater County