| 新疆萨喀尔得铜矿C-H-O-S同位素特征 |
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| 引用本文： | 吕兵团1,2, 王先林2, 石满乾2, 王利鹏2, 柳志进2. 新疆萨喀尔得铜矿C-H-O-S同位素特征[J]. 地质通报, 2014, 33(01): 104-109. |
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| 作者姓名： | 吕兵团1 2 王先林2 石满乾2 王利鹏2 柳志进2 |
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| 作者单位： | 1.长安大学/地球科学与国土资源学院,陕西 西安 710064;2.中国人民武装警察部队黄金第七支队,山东 烟台 264004 |
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| 摘 要： | 新疆萨喀尔得铜矿属中低温热液型，该矿石英和方解石样品中δ13CPDB值为-17.3‰~-0.7‰,δ18OSMOW为16.2‰~22.4‰,δ18OH2O水值为6.9‰~12.5‰,δD变化于-73.8‰~-52.4‰之间。研究表明，成矿流体主要来源于深部发生循环加热的建造水，并混合变质水和岩浆水；成矿早期流体中的C主要来源于地层水或大气降水，晚期有深部岩浆水的加入。δ34S值变化范围为0.2‰~6.1‰，表明流体中的S主要来自岩浆或上地幔。
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| 关 键 词： | C-H-O-S同位素 成矿流体 萨喀尔得铜矿 新疆 |
The C-H-O-S isotope characteristics of the Sakaerde copper deposit in Xinjiang |
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| Lü Bing-tuan1,2, WANG Xian-lin2, SHI Man-qian2, WANG Li-peng2, LIU Zhi-jin2. The C-H-O-S isotope characteristics of the Sakaerde copper deposit in Xinjiang[J]. Geological Bulletin of China, 2014, 33(01): 104-109. |
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| Authors: | Lü Bing-tuan1 2 WANG Xian-lin2 SHI Man-qian2 WANG Li-peng2 LIU Zhi-jin2 |
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| Affiliation: | 1. Faculty of Earth Sciences and Land Resource, Chang′an University, Xi'an 710064, Shaanxi, China;2. The 7th Gold Detachment of Chinese Armed Police Force, Yantai 264004, Shandong, China |
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| Abstract: | The Sakaerde copper deposit is a mesothermal-epithermal deposit. The δ13CPDB values of quartz and calcite samples in the deposit vary in a narrow range of -17.3‰~-0.7‰. The δ18OSMOW values range from 16.2‰ to 22.4‰, their corresponding δ18OH2O values are between 6.9‰ and 12.5‰, and the δD values of fluid inclusions vary from -73.8‰ to -52.4‰. These data imply that the ore-forming fluids of the ore deposit were mainly derived from the heated formation water mixed with a small amount of magmatic water and metamorphic water. The carbon in ore-forming fluids mainly came from formation water or atmosphere precipitation, with the addition of some deep magmatic water at the late stage. The δ34S values range from 0.2‰ to 6.1‰, implying that the sulfur in ore fluids mainly came from the magma or the upper mantle. |
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| Keywords: | C-H-O-S isotope ore-forming fluid Sakaerde copper deposit Xinjiang |
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