Results 161 to 170 of about 379 (209)

Uranium Isotopes in Groundwater: Their Use in Prospecting for Sandstone-Type Uranium Deposits

Journal of Geochemical Exploration, 1977
ABSTRACT Cowart, J.B. and Osmond, J.K., 1977. Uranium isotopes in groundwater: their use in prospecting for sandstone-type uranium deposits. J. Geochem. Explor., 8: 365–379. The relative abundances of dissolved 238U and its daughter 234U appear to be greatly affected as the uranium is transported downdip in sandstone aquifers. In an actively forming
J.B. Cowart, J.K. Osmond
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Methodology and exploration for sandstone-type uranium deposits

Mineralium Deposita, 1979
Mobility of uranium with ground water in near surface earth conditions and its association with sandstone formations of continental depositional environments require an increase in the understanding and application of depositional characteristics in exploration.
H.A. Qidwai, M.L. Jensen
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Fission-track dating of sandstone-type uranium deposits

Geology, 1982
A procedure has been developed to make use of quartz grains in sandstone-type uranium deposits as external detectors of spontaneous fission events in interstitial uranium. Fission-tracks must be counted on a large number of grain surfaces because uranium distribution is not uniform on a grain-to-grain scale.
Philip E. Rosenberg, Robert L. Hooper
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Remote sensing technique and prognosis of sandstone type uranium deposit

2001 International Conferences on Info-Tech and Info-Net. Proceedings (Cat. No.01EX479), 2002
This paper is firstly aimed at discussing how to utilize different types of remote sensing data and image enhancement, information extraction and multi-source data (TM, JERS-SAR, and geophysical, geochemical data) fusion processing to acquire information related to uranium mineralization.
null Huang Xianfang, null Huang Shutao, null Fang Maolong, null He Jianguo, null Xuan Yanxiu   +4 more
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Uranium recovery from sandstone-type uranium deposit by acid in-situ leaching - an example from the Kujieertai

Hydrometallurgy, 2020
Abstract The factors influencing uranium recovery in water-rock systems during acid in-situ leaching (ISL) were studied at the Kujieertai uranium deposit in Xinjiang. Using an ISL unit, a field leach trial (FLT) had been carried out to test the sequential effects of a leaching solution without oxidant (H2SO4 solution 4–8 g/L) and a leaching solution ...
Guangrong Li, Zhanxue Sun
exaly   +2 more sources

Geochemical characteristics of Dongsheng sandstone-type uranium deposit, Ordos Basin

Chinese Journal of Geochemistry, 2007
Generally, sandstone-type uranium deposits can be divided into three zones according to their redox conditions: oxidized zone, ore zone and reduced zone. The Dongsheng uranium deposit belongs to this type. In order to study its geochemical characteristics, 11 samples were taken from the three zones of the Dongsheng uranium deposit. Five samples of them
Yuzhuang Sun, Chiyang Liu, Shifeng Dai, Peng Qin   +3 more
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Uranium speciation and in situ leaching of a sandstone-type deposit from China

Journal of Radioanalytical and Nuclear Chemistry, 2016
In this paper, uranium ore samples collected from different hole depth and different numbered hole. The effects of uranium speciation to in situ leaching of uranium were analyzed by sequential chemical extraction and sulfuric acid leaching tests. These results imply that the distribution characteristics of uranium speciation are significantly different
Q. Ma, Z. G. Feng, P. Liu, X. K. Lin, Z. G. Li, M. S. Chen   +5 more
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Origin of gray-green sandstone in ore bed of sandstone type uranium deposit in north Ordos Basin

Science in China Series D: Earth Sciences, 2007
Dongsheng sandstone-type uranium deposit is located in the northern part of Ordos Basin, occurring in the transitional zones between gray-green and gray sandstones of Jurassic Zhiluo Formation. Sandstones in oxidized zone of the ore bed look gray-green, being of unique signature and different from one of ordinary inter-layered oxidation zone of ...
Ziying Li, Chiyang Liu, Li Ziying
exaly   +2 more sources

Paleochannel Sandstone-Type Uranium Deposits of Vitim Ore Region

2021
In this chapter present results obtained from last-years studies uranium ores from seven paleochannel-type deposits of Khiagda Ore Field at Vitim uranium ore region, Russia. All deposits belong to sandstone economic type, basal channel subtype; in Russian it commonly called as paleovalley, paleo-riverbed or paleo-streambed.
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Seismic interpretation of sandstone-type uranium deposits in the Songliao Basin, Northeast China

Interpretation, 2022
Abstract Nuclear energy is a clean energy source that can replace fossil energy on a large scale, and the nuclear energy industry has great advantages in terms of its technical maturity, economic potential, and sustainability. The stable supply of uranium ore, a type of energy mineral, is an important factor for the sustainable ...
Shuang Hu, Huiting Hu, Erxiu Shi, Chao Tang, Rui Zhang, Yugang Hao   +5 more
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