Uranium hydrogeochemical and stream sediment reconnaissance of the Thermopolis NTMS Quadrangle, Wyoming, including concentrations of forty-two additional elements

Technical Report · Fri Aug 01 04:00:00 EDT 1980

OSTI ID:7089956

Maassen, L W; Sandoval, W F; Minor, M M; Gallimore, D L; Talcott, C L; Hensley, W K; Hanks, D

Totals of 920 water and 1821 sediment samples were collected from 1977 locations at an average density of one sample location per 9 km/sup 2/ over an 18,000-km/sup 2/ area. Water samples were collected from streams, springs, and wells; sediment samples were collected from streams and springs. The uranium contents of water samples range from below the detection limit of 0.02 ppB to 307.98 ppB with a median of 0.56 ppB. Six clusters of anomalous water samples were delineated within the Wind River Basin and are associated predominantly with the Wind River formation. Two clusters of anomalous waters were collected on the southern margin of the Bighorn Basin and are associated with sandstone and shales of Permian through Cretaceous age. The uranium contents of sediment samples range from 0.43 to 94.65 ppM with a median of 2.90 ppM. Most sediment samples with uranium concentrations of greater than 12 ppM are underlain by Precambrian crystalline rocks of the Wind River Range; this area contains the highest uranium values found in sediments from the Thermopolis quadrangle. Other samples containing greater than 12 ppM uranium are found associated with the Wind River and Aycross formations along the northern margin of the Wind River Basin, and one sample was collected from Precambrian granitic terrain of the Owl Creek Mountains.

• Research Organization: Los Alamos Scientific Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 7089956
• Report Number(s): GJBX-188(80)
• Country of Publication: United States
• Language: English

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ZINC