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The uranium-bearing granites in South China can be classified into two types. namely, syntectic type andtransformation type. A fairly systematic hydrogen, oxygen. carbon, sulfur isotopic study of uranium depositsrelated to these two types of granites has been carried out by the authors, and the results show that they haveobvious differences in such aspects as ore-forming and rock-forming ages. properties of ore-forming solutionsand source of ore-forming substances. The authors hold that the uranium deposits related to the syntectic typegranitoids are intimately connected with magmatism in time and space, whereas the uranium deposits relatedto the transformation type granites, though spatially linked up with uranium-bearing granites, should actuallyowe their formation to extension in the fault block movement in South China.
A, officially systematic hydrogen, oxygen. Carbon, sulfur isotopic study of uranium depositsrelated to these two types of granites has been carried out by the authors , and the results show that they have beenvious differences in such aspects as ore-forming and rock-forming ages. properties of ore-forming solutions and source of ore-forming substances. The authors hold that the uranium deposits related to the syntectic type grants are intimately connected with magmatism in time and space, the the uranium deposits relatedto the transformation type granites, though spatially linked up with uranium-bearing granites, should actuallyowe their formation to extension in the fault block movement in South China.