| 南秦岭柞水-山阳矿集区王家坪金矿床地质特征及矿床成因探讨 |
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| 引用本文： | 丁坤,王瑞廷,王智慧,刘凯,申喜茂.南秦岭柞水-山阳矿集区王家坪金矿床地质特征及矿床成因探讨[J].西北地质,2022(1):167-178. |
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| 作者姓名： | 丁坤 王瑞廷 王智慧 刘凯 申喜茂 |
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| 作者单位： | 陕西铁路工程职业技术学院;陕西省矿产资源综合利用工程技术研究中心;西北有色地质矿业集团有限公司;长安大学地球科学与资源学院;商洛西北有色七一三总队有限公司;西安西北有色地质研究院有限公司 |
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| 基金项目： | 陕西省教育厅科研计划项目(21JK0581),长安大学科技处创新团队培育资助项目(300102279401);陕西铁路工程职业技术学院科研项目(KY2020-42);陕西铁路工程职业技术学院科技创新团队项目(KJTD202001)联合资助。 |
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| 摘 要： | 王家坪矿床位于南秦岭柞水-山阳矿集区东部,金矿体主要产于上泥盆统星红铺组沉积地层中;金属矿物以黄铁矿为主,与金成矿关系密切的矿物为黄铁矿和雌黄.笔者利用LA-ICPMS和LA-MC-ICPMS对成矿期不同阶段硫化物进行微量元素及硫同位素研究,结果表明,该矿床成矿中阶段黄铁矿Co/Ni值为0.003～1.1,均小于1,暗...
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| 关 键 词： | 成矿物质来源 硫同位素 微量元素 王家坪金矿床 柞水-山阳矿集区 |
Geological Characteristics and Genesis of the Wangjiaping Gold Deposit in Zhashui-Shanyang Ore Concentration area of South Qinling |
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| DING Kun,WANG Ruiting,WANG Zhihui,LIU Kai,SHEN Ximao.Geological Characteristics and Genesis of the Wangjiaping Gold Deposit in Zhashui-Shanyang Ore Concentration area of South Qinling[J].Northwestern Geology,2022(1):167-178. |
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| Authors: | DING Kun WANG Ruiting WANG Zhihui LIU Kai SHEN Ximao |
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| Affiliation: | (Shaanxi Railway Institute, Weinan 714099, Shaanxi, China;Shaanxi Provincial Engineering and Technology Research Center for Comprehensive Utilization of Mineral Resources,Xi'an 710054, Shaanxi,China;Northwest Geological Exploration for Nonferrous Metals,Xi'an 710054, Shaanxi,China;Shcool of Earth Science and Resources, Chang'an University,Xi'an 710054, Shaanxi, China;No.713 Geological Team, Northwest Bureau of Geological Exploration for Nonferrous Metals, Shangluo 726000, Shaanxi, China;Xi'an Northwest Research Institute of Nonferrous Metals Limited Company, Xi'an 710054, Shaanxi,China) |
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| Abstract: | The Wangjiaping gold deposit is located in the east of Zhashui-Shanyang ore concentration area in South Qinling.The gold ore body mainly lies in the sedimentary strata of the upper Devonian Xinghongpu Formation,with pyrite being the main metal mineral.Gold mineralization are closely related to pyrite and orpiment.In this paper,LA-ICPMS and LA-MC-ICPMS were used to study the trace elements and sulfur isotopes of sulfide in different stages of mineralization.The results show that the Co/Ni ratios of pyrite in the middle stage of mineralization range from 0.003 to 1.1,most of which are less than 1,excluding volcanic origin.In addition,The Co/Ni ratios of pyrite in the late stage of mineralization range from 0.02 to 5.87,suggesting that pyrite in this stage is related to magmatism and sedimentation process.The S isotope results show that theδ34S value of early sulfide ranges from-28.5‰to 20.33‰.The sulfide from intermediate stage ranges from-28.5‰to-19.95‰,whereas the late sulfide ranges from 11.91‰to 20.33‰,suggesting an inhomogeneous sulfur isotopic composition and an obvious multi-source characteristics.Hence,it is inferred that the sulfur may be derived from the mixture of sulfur and host rock sulfur.Therefore,the Wangjiaping deposit is a Carlin-type gold deposit.It has great significance for the future prospecting of Carlin-type gold deposit in Zhashui-Shanyang ore concentration area. |
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| Keywords: | source of ore-forming material S isotope trace elements Wangjiaping gold deposit Zhashui-Shanyang ore concentration area |
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