Hydrogeochemical and stream sediment detailed geochemical survey for Trans-Pecos, Texas. Terrell survey area. [NURE program, Terrell survey area]

Technical Report · Thu Nov 15 04:00:00 EST 1979

OSTI ID:5517436

Butz, T R; Payne, A G; Grimes, J G; Helgerson, R N; Bard, C S

Results of the Terrell survey area portion of the detailed geochemical survey for Trans-Pecos, Texas are reported. Field and laboratory data are presented for 36 groundwater and 158 stream sediment samples. Statistical and areal distributions of uranium and possible uranium-related variables are given. A generalized geologic map of the survey area is provided, and pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed. Groundwaters reflecting concentrations of uranium greater than or equal to 5.0 ppB occur in three wells north of Dove Mountain in the western portion of the survey area and two wells west of Dryden Crossing in the eastern portion, all producing from Lower Cretaceous units. Groundwater collected in the western portion of the survey area compared to those collected in the eastern portion are being influenced by conate and saline waters. Groundwaters in the eastern portion of the survey area show a relative abundance of uranium which is independent of variables indicative of increased salinity and total dissolved solids. Stream sediments containing greater than or equal to 2.57 ppM soluble uranium are located in the Indian Creek Catchment and streams entering Sanderson Canyon in the eastern portion of the survey area. These sediments are derived from the uppermost Comanchean and lowermost Gulfian rocks of the Cretaceous System. Above background concentrations of arsenic, selenium, vanadium, copper, nickel, and strontium are observed for samples containing above background concentrations of soluble uranium. This association provides the best indication of possible uranium mineralization in the Terrell survey area.

• Research Organization: Oak Ridge Gaseous Diffusion Plant, TN (USA)
• DOE Contract Number: EY-76-C-13-1664
• OSTI ID: 5517436
• Report Number(s): GJBX-29(80)(Pt.1); K/UR-29(Pt.1)
• Country of Publication: United States
• Language: English

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