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H,O,S and Pb isotope studies of uranium ore deposits in granitoid rocks of South China

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Abstract

Most altered clay minerals in uranium ore deposits in granites in the selected provinces of South China haveδ 18O m values ranging from 6.22 to 7.24,δDm from −60 to −70,δ 18O\(O_{H_2 O} \)from +3.05 to −3.07, and\(\delta D_{H_2 O} \) from −20.2 to −37.5‰. Relative enrichment of32S in the uranium ore deposits and greater variations in Pb isotopic composition of galenas from them show that uranium ores in the granites were formed in such a way that uranium in shallow-source granites had been mobilized by heated meteoric waters and then migrated to local favourable locations along great faults to form uranium ore deposits.

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Authors and Affiliations

  1. Institute of Geochemistry, Academia Sinica, China

    Wang Liankui & Liu Tiegeng

Authors
  1. Wang Liankui
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  2. Liu Tiegeng
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Additional information

Zhang Shaoli, Yang Wenjin, Tang Chunjing and Xu Wenxin did part of this work.

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Wang, L., Liu, T. H,O,S and Pb isotope studies of uranium ore deposits in granitoid rocks of South China. Chin. J. of Geochem. 6, 352–366 (1987). https://doi.org/10.1007/BF02872264

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  • DOI: https://doi.org/10.1007/BF02872264

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