Results 141 to 150 of about 268 (179)

Transportation and precipitation of uranium and vanadium at low temperatures, with special reference to sandstone-type uranium deposits

Economic Geology, 1962
U and V in sandstone-type deposits of the western United States apparently have been transported to their present environment from external sources by low-temperature aqueous solutions. In this paper an attempt is made to interpret the characteristics of aqueous solutions capable of transporting significant quantities of U and V through continental ...
P. B. Hostetler, R. M. Garrels
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Uranium-234 fractionation in the sandstone-type uranium deposits of the Ambrosia Lake District, New Mexico

Economic Geology, 1966
Isotopic analyses for U 234 were made on 30 samples from 5 vertical suites of ore-grade uranium-bearing sandstone from the Ambrosia Lake district, McKinley County, New Mexico. U 238 , U 235 , and U 234 were measured by mass spectrometry, and U 234 /U 238 ratios were verified by alpha spectrometry.
J. R. Dooley, H. C. Granger, J. N. Rosholt   +2 more
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Sedimentary Environmental Control of Sandstone-Type Uranium Deposits: ABSTRACT

AAPG Bulletin, 1971
Uranium deposits of the Rocky Mountain area are present in fluvial sandstones that were derived from granitic highland source areas and deposited in adjacent intermontane basins. The sandstones are arkosic to arkose in composition and contain a small percentage of carbonized plant debris and pyrite, medium grained to conglomeratic in size, subrounded ...
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Study on Uranium Occurrences of Sandstone-Type Uranium Deposit in Bayanwula Area, Erlian Basin, Inner Mongolia

Applied Mechanics and Materials, 2013
It is a breakthrough exploratory area about sandstone-type uranium deposit of Bayanwula area in Erlian basin, Inner Mongolia, a detailed study of the form of occurrences . Ore-bearing horizon is the down cretaceous Saihan formation in Bayanwula area. Study on uranium occurrences which is significance for Uranium mining smelting.The host rocks are gray ...
Zhao Bin Yan, Feng Jun Nie, Jun Jun Hu, Shi Hu Kang   +3 more
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Natural Analogue Study of Tono Sandstone Type Uranium Deposit in Japan

1987
Sandstone type uranium deposit, located in Tono area, central part of Japan, has been recognized as a potentially useful analogue of geological isolation of radioactive wastes in Japan. The uranium deposit occurs as the stratiform which is less than 150 m in depth and below the water table. The studied area is not far from inhabitant. Preliminary study
C. Sato, Y. Ochiai, S. Takeda
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The Karpinka Lake uranium prospect, Saskatchewan; a possible metamorphosed middle Precambrian sandstone-type uranium deposit

Economic Geology, 1985
The Karpinka Lake prospect is a strata-bound uranium deposit hosted by Aphebian meta-sediments located just to the south of the important unconformity-type deposits at Key Lake in northern Saskatchewan. The uranium occurs as disseminated uraninite and brannerite in sillimanite-bearing quartz-feldspar-biotite gneisses which, on the basis of major ...
Anthony E. Williams-Jones, Myron J. Sawiuk   +1 more
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Hyperspectral Data Analyzing for Characterizing Hydrocarbon Microseepage at Sandstone-type Uranium Deposits

2006 IEEE International Symposium on Geoscience and Remote Sensing, 2006
Many uranium geological studies demonstrate the reduction environment induced by hydrocarbon microseepage is one of the key metallogenetic factors for the sandstone-type uranium mineralization, so utilizing hyperspectral and multispectral remote sensing technology to detect hydrocarbon- induced diagenetic alterations, such as clay mineral alteration ...
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Diversity of Microbial Community in Shihongtan Sandstone-Type Uranium Deposits, Xinjiang, China

Geomicrobiology Journal, 2012
Investigation of microbial communities in uranium deposits will be beneficial for understanding the indigenous microbial impacts on uranium-mineralization as well as developing appropriate remediation and long-term management strategies of uranium-contaminated repositories.
Zhi Chen, Yangjian Cheng, Danmei Pan, Zhaoxian Wu, Bin Li, Xiaohong Pan, Zhipeng Huang, Zhang Lin, Xiong Guan   +8 more
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Theoretical System of Sandstone-Type Uranium Deposits in Northern China

Journal of Earth Science, 2022
Ruoshi Jin, Huajian Liu, Xiaoguang Li
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Reduction of fluids in the Bashbulak sandstone type uranium deposit in the Tarim Basin, China

2005
This paper concentrates on the main evidence for reducing fluid in the Bashbulak uranium deposit, its fluid properties, stages and source. Based on these considerations, the origin of the deposit is discussed and an “extraction of reducing thermal fluid-metallogenesis” model is put forward. The formation of the deposit resulted from the internal action
Mingkuan Qin, Wenming Dong, Guangxi Ou
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