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Formation of Sandstone‐hosted Uranium Mineralization in the Ordos Basin, Northwestern China
Author(s) -
AKHTAR Shamim,
YANG Xiaoyong
Publication year - 2014
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.12381_1
Subject(s) - china , crust , mantle (geology) , geology , library science , geochemistry , geography , archaeology , computer science
In north of China, Ordos Basin is the second largest sedimentary basin and is known as “Basin of energy resources” having a great amount of coal, oil, natural gas and many other important mineral deposits especially sandstone hosted uranium deposits. Such type of mineralization occurs in Middle Jurassic Zhilou Formation so chemical compositional analysis performed to find the source of this lithic subarkose sandstone (Cai et al., 2007). Geochemical and mineralogical X-ray diffraction analysis performed to find the mineral alterations of ore bearing strata and host sandstone. Variations in uranium contents in grey green sandstone and grey sandstone of host rocks are studied on the basis of trace element concentrations in both types of sandstones. Geochemistry of uranium deposits, the role of organic matters and hydrocarbons for uranium migrations and mineralization in sandstone have been studied in two main deposits of the Ordos Basin, Dongsheng uranium deposit and Diantou uranium deposit.