Uraniferous Quartzite, Red Bluff Prospect, Gila County, Arizona

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Description

Abstract: Radioactive zones are present in the upper silty part of the pre-Cambrian Dripping Spring quartzite at the Red Bluff prospect, Gila County, Ariz. The prospect is in the SE 1/4 sec. 31, T. 5 N., R. 14 E., at the southern end of the Sierra Ancha area and 12 miles northeast of Roosevelt Dam. Stratigraphic control of the radioactive zones is indicated by the restriction of the zones to two layers, each about 20 feet thick.The zones are spatially associated in part with a diabase dike that occupies a fault, and in part with a thick diabase sill. The ... continued below

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33 p. : ill., maps ; 28 cm.

Creation Information

Kaiser, E. P. January 1951.

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  • Geological Survey (U.S.)
    Publisher Info: U.S. Dept. of the Interior, Geological Survey
    Place of Publication: Washington D.C.

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Description

Abstract: Radioactive zones are present in the upper silty part of the pre-Cambrian Dripping Spring quartzite at the Red Bluff prospect, Gila County, Ariz. The prospect is in the SE 1/4 sec. 31, T. 5 N., R. 14 E., at the southern end of the Sierra Ancha area and 12 miles northeast of Roosevelt Dam. Stratigraphic control of the radioactive zones is indicated by the restriction of the zones to two layers, each about 20 feet thick.The zones are spatially associated in part with a diabase dike that occupies a fault, and in part with a thick diabase sill. The main uranium mineral disseminated through the rock in these zones has not been identified definitely, although minor quantities of secondary uranium minerals were observed. The results of scintillometer traverses and radiometric analyses indicate that the deposits probably contain an average of 0.026 percent uranium. Some black streaks and some fractures contain a higher percentage of uranium, but so far as is known the volume of such material is probably too small to affect the overall grade of the deposits.

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33 p. : ill., maps ; 28 cm.

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Missing pages 13-18.

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  • January 1951

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  • July 30, 2017, 8:43 a.m.

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Kaiser, E. P. Uraniferous Quartzite, Red Bluff Prospect, Gila County, Arizona, report, January 1951; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc784430/: accessed May 26, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.