| 湖南黄沙坪铅锌多金属矿床铅、硫同位素地球化学特征 |
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| 引用本文：息朝庄,戴塔根,刘悟辉.2009.湖南黄沙坪铅锌多金属矿床铅、硫同位素地球化学特征[J].地球学报,30(1):89-94. |
| DOI：10.3975/cagsb.2009.01.12 |
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| 基金项目:国家自然科学基金项目(编号：2004BA615-02) |
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| 中文摘要:黄沙坪铅锌多金属矿床是湘南的代表性矿床之一, 矿床受SN向宝岭倒转背斜和观音打座倒转背斜的控制，赋存围岩以花岗斑岩与石英斑岩为主，矿石以铅锌硫化物矿石为主，对该矿床S同位素研究表明，δ34S值为-2.2‰～17.2‰。矿石Pb同位素组成206Pb/204Pb为17.893～18.772; 207Pb/204Pb为15.580～16.045；208Pb/204Pb为38.490～41.560。研究表明，该矿床的硫源可能是岩浆来源与海水(地层)硫混合作用形成；矿床中异常铅矿化的铅是岩源来源。 |
| 中文关键词:铅 硫同位素 黄沙坪铅锌多金属矿床 矿石 |
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| Lead and Sulfur Isotope Geochemistry of the Huangshaping Lead-Zinc Deposit, Hunan Province |
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| Abstract:The Huangshaping lead-zinc deposit is one of the typical deposits in Xiangnan (southern Hunan Province). This deposit occurs mainly in granite-porphyry and quartz porphyry. The ores are mainly composed of Pb, Zn sulfides in SN-trending Baoling reversed anticline and Guanyindazuo reversed anticline. Sulfur isotope analyses show that δ34S values of pyrites vary in the range of -2.2‰~17.2‰. Pb isotope analyses reveal that 206Pb/204Pb, 207Pb/204Pb and 208Pb/204Pb ratios of the ore lead are 17.893~18.772, 15.580~16.045 and 38.490~41.560 respectively. The research results suggest that sulfur might have been derived from the mixing effect of magma and seawater(strata). The research also shows that anomalous lead has derived from magma |
| keywords:Pb S isotopes Huangshaping lead-zinc deposit ore |
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