Genesis of the Xiaotongchang basalt-hosted copper deposit in the Jinping area, SW China: Constraints from geochronology, fluid inclusion and geochemistry
文献类型：期刊论文
| 作者 | Shen, Xiaoli5; Lin, Honghong5; Du, Qingxiang5; Zhang, Baolin1,2,3; Xu, Qinglin5; Su, Yanping4 |
| 刊名 | ORE GEOLOGY REVIEWS
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 139页码:20 |
| 关键词 | Basalt-hosted copper deposit Metallogenic age Emeishan basalts Volcanic hydrothermal fluid |
| ISSN号 | 0169-1368 |
| DOI | 10.1016/j.oregeorev.2021.104450 |
| 英文摘要 | The Xiaotongchang basalt-hosted copper deposit in the Jinping area, SW China, is located in the southwestern margin of Ailaoshan orogenic belt. Here, we use H-O isotope, quartz fluid inclusion, sulfide Re-Os and zircon UPb isotopic dating of copper ore and element contents of basalts to constrain the age and genesis of the deposit. The basalts in the study area formed in the shallow part of the Emeishan mantle plume by low degree of assimilation-contamination in intraplate environment. Investigations revealed two stages of mineralization in the deposit. The ore mineral assemblage in the early stage was pyrite-chalcopyrite-calcite. The early-stage ore forming fluid was characterized by medium-high temperature (206.6 degrees C-279.8 degrees C) and high salinity (12.28%-22.44%), and it was related to water-rock interaction between the Emeishan sulfur-carbonate-bearing volcanic hydrothermal fluid and gypsum layer in the Carboniferous, and experienced boiling. The ore mineral assemblage in the main metallogenic stage is quartz-chalcopyrite-bornite-calcite. Re-Os dating of chalcopyrite in the main stage in No. 1 ore body yielded an age of 246 +/- 17 Ma, and zircon ages of copper ore in No. 3 and No. 4 ore bodies revealed that they formed at 245.6 +/- 1.0 Ma and 244.9 +/- 2.0 Ma, respectively, suggesting that the age of main metallogenic stage is ca. 245 Ma. The ore-forming fluid in the main metallogenic stage was characterized by high temperature (294 degrees C-425.4 degrees C) and low salinity (6.3%-16.05%). Combined with analysis of H-O isotope of quartz samples, we suggested that the main-stage hydrothermal fluid was mainly derived from intermediate acid magmatic water and experienced degasification. The organic substances may act as the reducing agent during the mineralization process. The main-stage mineralization was related to the continental collision between the Simao-Indosinian massif and the Yangtze massif in the Middle Triassic. Re-Os analysis in No. 3 ore body indicated that the deposit was reformed by later hydrothermal fluid in Yanshanian period. |
| WOS关键词 | U-PB ; SOUTH CHINA ; RE-OS ; POLYMETALLIC DEPOSIT ; TRACE-ELEMENTS ; INDO-CHINA ; GEOLOGICAL IMPLICATIONS ; METALLOGENIC SYSTEM ; TRIASSIC COLLISION ; KEWEENAW PENINSULA |
| 资助项目 | National Natural Science Foundation of China[41502064] ; National Natural Science Foundation of China[41602110] ; Project of Shandong Province Higher Educational Science and Technology Program[J18KA213] ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents[2017RCJJ029] ; Qingdao Postdoctoral Applied Research Project[2015193] ; support plan of Shandong Province Higher Educational Science and Technology for Youth Innovation Team[2019KJH004] |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000706417000002 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Shandong Province Higher Educational Science and Technology Program ; Project of Shandong Province Higher Educational Science and Technology Program ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents ; Qingdao Postdoctoral Applied Research Project ; Qingdao Postdoctoral Applied Research Project ; support plan of Shandong Province Higher Educational Science and Technology for Youth Innovation Team ; support plan of Shandong Province Higher Educational Science and Technology for Youth Innovation Team ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Shandong Province Higher Educational Science and Technology Program ; Project of Shandong Province Higher Educational Science and Technology Program ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents ; Qingdao Postdoctoral Applied Research Project ; Qingdao Postdoctoral Applied Research Project ; support plan of Shandong Province Higher Educational Science and Technology for Youth Innovation Team ; support plan of Shandong Province Higher Educational Science and Technology for Youth Innovation Team ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Shandong Province Higher Educational Science and Technology Program ; Project of Shandong Province Higher Educational Science and Technology Program ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents ; Qingdao Postdoctoral Applied Research Project ; Qingdao Postdoctoral Applied Research Project ; support plan of Shandong Province Higher Educational Science and Technology for Youth Innovation Team ; support plan of Shandong Province Higher Educational Science and Technology for Youth Innovation Team ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Shandong Province Higher Educational Science and Technology Program ; Project of Shandong Province Higher Educational Science and Technology Program ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents ; Qingdao Postdoctoral Applied Research Project ; Qingdao Postdoctoral Applied Research Project ; support plan of Shandong Province Higher Educational Science and Technology for Youth Innovation Team ; support plan of Shandong Province Higher Educational Science and Technology for Youth Innovation Team |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/102993]  |
| 专题 | 地质与地球物理研究所_中国科学院矿产资源研究重点实验室 |
| 通讯作者 | Du, Qingxiang |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 4.Dezhou Univ, Sch Ecol Resources & Environm, Dezhou 253023, Peoples R China 5.Shandong Univ Sci & Technol, Coll Earth Sci & Engn, Shandong Prov Key Lab Deposit Mineralizat & Sedim, Qingdao 266590, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, Xiaoli,Lin, Honghong,Du, Qingxiang,et al. Genesis of the Xiaotongchang basalt-hosted copper deposit in the Jinping area, SW China: Constraints from geochronology, fluid inclusion and geochemistry[J]. ORE GEOLOGY REVIEWS,2021,139:20. |
| APA | Shen, Xiaoli,Lin, Honghong,Du, Qingxiang,Zhang, Baolin,Xu, Qinglin,&Su, Yanping.(2021).Genesis of the Xiaotongchang basalt-hosted copper deposit in the Jinping area, SW China: Constraints from geochronology, fluid inclusion and geochemistry.ORE GEOLOGY REVIEWS,139,20. |
| MLA | Shen, Xiaoli,et al."Genesis of the Xiaotongchang basalt-hosted copper deposit in the Jinping area, SW China: Constraints from geochronology, fluid inclusion and geochemistry".ORE GEOLOGY REVIEWS 139(2021):20. |
入库方式： OAI收割
来源：地质与地球物理研究所
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