Multiple sulfur isotopes in post-Archean deposits as a potential tracer for fluid mixing processes: An example from an iron oxide-copper-gold (IOCG) deposit in southern Peru
文献类型：期刊论文
| 作者 | Li, Rucao1,2; Chen, Huayong2,3; Wu, Nanping4 ; Wang, Xiaolei1; Xia, Xiaoping5
|
| 刊名 | CHEMICAL GEOLOGY
 |
| 出版日期 | 2021-08-05 |
| 卷号 | 575页码:13 |
| 关键词 | Multiple sulfur isotope Fluid mixing IOCG SIMS Pyrite Mina Justa |
| ISSN号 | 0009-2541 |
| DOI | 10.1016/j.chemgeo.2021.120230 |
| 英文摘要 | Sulfur has multiple stable isotopes (32S, 33S, 34S, and 36S), but little research has been conducted to investigate the information that low abundance sulfur isotope ratios (i.e., 33S/32S and 36S/32S) may carry on ore-forming processes in post-Archean deposits. In this study, the Cretaceous Mina Justa iron oxide-copper-gold deposit, was selected to examine the capability of multiple sulfur isotopes to trace ore-forming processes in post-Archean mineral deposits. In situ secondary ion mass spectrometry was applied to the pyrite of the magnetite-pyrite stage in the deposit to characterize the spatial variation of multiple sulfur isotopes at the microscale. This revealed a clear co-variation trend between delta 34S (= 1000 x [(34S/32S)sample/(34S/32S)V-CDT - 1]) and Delta 33S (= delta 33S - 1000 x [(1 + delta 34S/1000)0.515 - 1]). Simple modeling suggests that the triple sulfur isotope data recorded is best explained by mixing magmatic and externally derived (e.g., basinal brine) fluids. The contribution of external fluids is also supported by the trace element distribution patterns in pyrite, as revealed by laser ablationinductively coupled plasma-mass spectrometry. This study is the first attempt to use multiple sulfur isotopes to trace ore-forming processes in post-Archean deposits and demonstrates that multiple sulfur isotopes are a faithful recorder of ore-forming processes at the microscale, especially when multiple fluids mix. |
| WOS关键词 | MASS-INDEPENDENT FRACTIONATION ; SULFATE REDUCTION ; SULFIDE DEPOSITS ; PYRITE ; CU ; ORE ; ORIGIN ; MINERALIZATION ; CONSTRAINTS ; EVOLUTION |
| 资助项目 | National Natural Science Foundation of China[41725009] ; National Natural Science Foundation of China[41921003] ; National Natural Science Foundation of China[41903010] ; Science and Technology Planning Project of Guangdong Province, China[2017B030314175] ; Science and Technology Planning Project of Guangdong Province, China[2020B1212060055] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000655664300003 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Science and Technology Planning Project of Guangdong Province, China |
| 源URL | [http://ir.idsse.ac.cn/handle/183446/8713]  |
| 专题 | 深海科学研究部_深海地质与地球化学研究室 |
| 通讯作者 | Chen, Huayong |
| 作者单位 | 1.Nanjing Univ, Sch Earth Sci & Engn, Nanjing 210023, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou 510604, Peoples R China 3.Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China 4.Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510604, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Rucao,Chen, Huayong,Wu, Nanping,et al. Multiple sulfur isotopes in post-Archean deposits as a potential tracer for fluid mixing processes: An example from an iron oxide-copper-gold (IOCG) deposit in southern Peru[J]. CHEMICAL GEOLOGY,2021,575:13. |
| APA | Li, Rucao,Chen, Huayong,Wu, Nanping,Wang, Xiaolei,&Xia, Xiaoping.(2021).Multiple sulfur isotopes in post-Archean deposits as a potential tracer for fluid mixing processes: An example from an iron oxide-copper-gold (IOCG) deposit in southern Peru.CHEMICAL GEOLOGY,575,13. |
| MLA | Li, Rucao,et al."Multiple sulfur isotopes in post-Archean deposits as a potential tracer for fluid mixing processes: An example from an iron oxide-copper-gold (IOCG) deposit in southern Peru".CHEMICAL GEOLOGY 575(2021):13. |
入库方式： OAI收割
来源：深海科学与工程研究所
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