| 湖南香花岭锡多金属矿床同位素地球化学研究 |
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| 关键词:isotope tin-polymetallic deposit Xianghualing Hunan |
| 基金项目:国家科技支撑计划(编号:2006BAB01B00) |
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| 摘要: |
| Isotope Geochemistry of the Xianghualing Tin-Polymetallic Deposit in Hunan Province |
| According to the temperatures of inclusions in minerals and S and Pb isotopic determinations of the minerals formed at different ore-forming stages in the Xianghualing tin-polymetallic deposit,it is revealed that the homogeneous temperature of the cassiterite-sulfide phase is 350℃,the average homogenization temperature of the sulfide-stage is 250℃,the δ34S value of pyrite in sulfide is-1.0 ‰～+5.4‰,the δ34S value of sphalerite is +0.8‰～+5.8‰,the δ34S value of pyrrhotite is +1.5 ‰～5.2‰,and the δ34S value of galena is -1.0‰～+3.6‰, characterized by insignificant variation and stable composition. The 206Pb/204Pb ratio of galena is 17.785～19.341, the 207Pb/204Pb ratio is 15.416～16.452, and the 208Pb/204Pb ratio is 38.357～42.579. The S isotopes indicate that they were derived from the magma, and the Pb isotopes suggest that they came from mixed sources. |
| ZHOU Tao,LIU Wu-hui,LI Heng,XU Wen-xin,DAI Ta-gen.2008.Isotope Geochemistry of the Xianghualing Tin-Polymetallic Deposit in Hunan Province[J].Acta Geoscientica Sinica,29(6):703-708. |
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