Geology of epigenetic uranium deposits in sandstone in the United States

Abstract

Major characteristics of individual deposits and groups of deposits of uranium in sandstone in the United States, by States________________________________________________________________________________ 3. Stratigraphic units that contain uranium deposits in sandstone in the United States and a summary of the geologic characteristics of these units ______________________________ ------__________________________ 4. Dominantly intrinsic elements in sandstone and in uranium ore in the Colorado Plateau region_____________ 5. Geometric mean content of dominantly extrinsic elements in uranium ore and barren sandstone from parts of the Chinle and Morrison Formations, Colorado Plateau region, and their enrichment factors_____________ 6. Uranium minerals identified in sandstone deposits and their formulas alphabetized according to chemical

Mineral occurrence map and tabulation of geologic, commodity, and production data, Ajo and Lukeville 1 degree by 2 degrees quadrangles, southwestern Arizona

“…Three uranium-bearing veins are present within the quadrangle and several others are known in Yum a and Pirn a Counties, Ariz. (Finch, 1967). The criteria csed in searching for uranium-bearing veins are similar to those used in searching for quartz or Iron-bearing veins except that a radioactive anomaly should also be present.…”

Mineral resource assessment of the Ajo and Lukeville 1° by 2° quadrangles, Arizona

“…Three uraninn-bear ing veins occur within the quadrangle and several others are known in Yuma and Pima Counties, Ariz., near the quadrangle (Finch, 1967). The criteria used in searching for uraninn-bear ing veins are similar to those used in searching for quartz or iron-bearing veins except that a radioactive anomaly should also be present.…”

Aerial radiometric and magnetic survey: Hobbs National Topographic Map, New Mexico/Texas. Final report

“…The Ogal l a l a Formation i s reported (Finch, 1967) t o contain c a r n o t i t e deposits i n Lea County, New Mexico. The '14Bi and p o s i t i v e r a t i o anomalies i n the u n i t To are thought t o r e f l e c t epigenetic concentrations o f uranium minerals, p a r t i c u l a r l y where the two anomalous types coincide.…”

“…The Southern ~n t e r s t a t e Nuclear Board (1969) reports no uranium m i n e r a l i z a t i o n i n any o f t h e counties i n Texas included i n the Hobbs map sheet area. Finch (1967) Table IV.7 contains the mean, standard deviation, and number of events f o r each geologic type encountered over t h e e n t i r e map sheet. Histograms f o r these data aopear i n Section IV.H:2.…”