| 四川牦牛坪稀土矿床地幔流体成矿的碳、氢、氧、硫同位素证据 |
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| 引用本文：田世洪,丁悌平,毛景文.2003.四川牦牛坪稀土矿床地幔流体成矿的碳、氢、氧、硫同位素证据[J].地球学报,24(6):543-547. |
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| 基金项目:国家重点基础研究项目(G1999043211)，国土资源部重点科技项目(20010209) |
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| 中文摘要:选取2种主要矿石类型——碳酸岩伟晶岩型矿石和重晶石伟晶岩型矿石进行了成矿流体的C、H、O、S同位素测试，获得δ^13CV-PDB值为-3．0‰～-5．6‰，δDV-SMOW值为-57‰～-88‰，δ^18OH2O-VSMOW值为8．0‰～13．3‰，δ^34SV-CDT值为3．3‰～5．9‰，以及方解石的δ^13CV-PDB值为-6．9‰和δ^18OV-SMOW值为7．3‰～7．4‰。所有这些数据表明，四川牦牛坪稀土矿床在成矿过程中有大量地幔物质参与。 |
| 中文关键词:稀土矿床 四川牦牛坪 地幔流体 C、H、O、S同位素 |
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| Mantle Fluids Involved in the Ore-forming Process of the Maoniuping REE Deposit,Sichuan:Evidence of C,H,O and S Isotopes |
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| Abstract:The two most important types of ores, i.e., barite pegmatite ores and carbonatite pegmatite ores, were chosen to analyze the carbon, hydrogen, oxygen and sulfur isotopic components of the ore-forming fluids.δ 13C V-PDB ratios are -3.0‰～-5.6‰, δD V-SMOW ratios are -57‰～-88‰,δ 18O H 2O-VSMOW ratios are 8.0‰～13.3‰,δ 34S V-CDT ratios are 3.3‰～5.9‰, and δ 13C V-PDB and δ 18O V-SMOW ratios of calcite are -6.9‰ and 7.3‰～7.4‰, respectively. The data obtained suggest that large quantities of mantle fluids were involved in the ore-forming process of the Maoniuping REE deposit. |
| keywords:rare earth element deposit Maoniuping in Sichuan Province mantle fluids C-H-O-S isotope |
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