A study of Sr isotopic characteristics and ore-search indicators of Gejiu Sn-bearing granites |
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| Authors: | Qinsheng Wu Junzhen Xu Zhi Yang |
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| Institution: | (1) Institution of Mineral Resources and Geology China National Non-ferrous Metal Industry Co., China |
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| Abstract: | Whole-rock Rb-Sr isochron dating of Sn-bearing granites and alkaline rocks from Gejiu, Yunnan Province has been conducted
for their emplacement ages and initial87Sr/86Sr ratios. The Sr isotopic compositions of apatites from some basic rocks in Jiasha, and granite bodies also have been studied
in detail. The genesis and evolution of Gejiu Sn-bearing granites as well as ore-search indicators are discussed on the basis
of the available data in conjunction with the geochemical data on trace elements (such as Rb and Sr), Sr isotopic characteristics
of the volcanic rocks, meta-diabase and host rocks and the isotopic features of ore leads. |
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