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| 新疆包古图斑岩铜矿床成矿流体及成矿物质来源——来自硫、氢和氧同位素证据 | |
| 引用本文： | 张志欣,杨富全,闫升好,张锐,柴凤梅,刘锋,耿新霞.新疆包古图斑岩铜矿床成矿流体及成矿物质来源——来自硫、氢和氧同位素证据[J].岩石学报,2010,26(3):707-716. |
| 作者姓名： | 张志欣 杨富全 闫升好 张锐 柴凤梅 刘锋 耿新霞 |
| 作者单位： | 1. 中国地质科学院矿产资源研究所,国土资源部成矿作用与资源评价重点开放实验室,北京100037 2. 中央地勘基金管理中心,北京,100812 3. 新疆有色地质勘查局地质研究所,乌鲁木齐,830000 4. 新疆大学地质与勘查工程学院,乌鲁木齐,830046 |
| 基金项目： | 国土资源大调查项目(1212010630603、1212010786006)和国家自然科学基金项目(40972069)联合资助 |
| 摘 要： | 包古图大型斑岩铜矿位于准噶尔盆地西缘。铜矿化主要呈浸染状、细脉浸染状分布于似斑状(石英)闪长岩、闪长玢岩、隐爆角砾岩和少量花岗闪长岩中。依据矿脉的穿插关系和矿物组合,成矿过程经历了黑云母-钾长石-钠长石阶段、石英-硫化物阶段和石英碳酸盐阶段。矿脉中石英的δDSMOW值介于-107‰～-86‰,δ18OSMOW值变化于11.3‰～16.2‰,δ18OH2O值为4.4‰～9.3‰,表明成矿流体来源为深源的岩浆水。硫化物的δ34S值介于-5.1‰～0.7‰,平均为-1.8‰,表明硫来源于深部岩浆或地幔。结合Ⅱ、Ⅲ和Ⅴ号含矿岩体锆石LA-ICP-MSU-Pb年龄及辉钼矿Re-Os年龄,推断包古图铜矿床成矿作用发生在晚石炭世,与中酸性斑岩体的侵入有密切成因关系。 |
| 关 键 词： | 稳定同位素 成矿流体 斑岩铜矿 包古图 新疆 |
| 收稿时间： | 2009/12/2 0:00:00 |
| 修稿时间： | 2/1/2010 12:00:00 AM |
Sources of ore-forming fluids and materials of the Baogutu porphyry copper deposit in Xinjiang: Constraints from sulfur-hydrogen-oxygen isotopes geochemistry |
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| Zhang ZX,Yang FQ,Yan SH,Zhang R,Chai FM,Liu F and Geng XX.Sources of ore-forming fluids and materials of the Baogutu porphyry copper deposit in Xinjiang: Constraints from sulfur-hydrogen-oxygen isotopes geochemistry[J].Acta Petrologica Sinica,2010,26(3):707-716. | |
| Authors: | Zhang ZX Yang FQ Yan SH Zhang R Chai FM Liu F and Geng XX |
| Institution: | MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China;MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China;Center Geology and Mineral Exploration Foundation Manage Center, Beijing 100812, China;Institute of Geology, Xinjiang Geoexploration Bureau for Non-ferrous Meta, Urumqi 830000, China;College of Geology and Prospecting Engineering Program, Xinjiang University, Urumqi 830046, China;MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China;MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China |
| Abstract: | |
| Keywords: | Stable isotopes Ore-forming fulid Porphyry copper deposit Baogutu Xinjiang |
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