Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
| Li, Rucao1,2; Tan, Qinping3; Wang, Xiao-Lei2; Sun, Xiaoming4; Yang, Tao2; Xia, Yong3; Guan, Yue2; Feng, Yuzhou5 | |
| A metasedimentary origin for gold deposits in the Dian-Qian-Gui "Golden Triangle" of Southwest China | |
| Source Publication | ORE GEOLOGY REVIEWS
 |
| ISSN | 0169-1368 |
| 2023-08-01 | |
| Volume | 159Pages:12 |
| DOI | 10.1016/j.oregeorev.2023.105560 |
| Language | 英语 |
| WOS Research Area | Geology ; Mineralogy ; Mining & Mineral Processing |
| Abstract | The Dian-Qian-Gui "Golden Triangle" area of Southwest China hosts a large number of Au deposits. However, the sources of the ore-forming fluids are still controversial, hampering the formulation of a sound genetic model and effective ore prospecting. Here we investigate the sources of ore-forming fluids by an integrated study of in-situ sulfur isotope analyses and available trace element (e.g., Co and Ni) data for the pyrite in the "Golden Triangle" area. We find that the ore stage pyrites are featured by low Co/Ni ratios (mostly < 2), which is distinct from pyrite formed in magmatic-hydrothermal systems but resemble typical sedimentary pyrite. In addition, the significant variation (from-7.5 to +20.0%o) in sulfur isotopes (& delta;34S) of the ore stage pyrite in these deposits also support a sedimentary origin of the ore-forming fluids. Considering the difference in sulfur isotopic compositions of ore-stage pyrite and the sedimentary host rocks, we suggest the metasedimentary basement rocks (>500 Ma) in the area may have supplied most of the sulfur and gold for the ore-forming fluids during the Triassic orogenesis in the Dian-Qian-Gui "Golden Triangle" area of Southwest China. |
| Keyword | Metasedimentary origin Golden triangle Sulfur isotope Co Ni ratio Pyrite |
| WOS ID | WOS:001038336800001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/74587 |
| Collection | 中国科学院广州地球化学研究所 |
| Corresponding Author | Wang, Xiao-Lei |
| Affiliation | 1.Shandong Univ Sci & Technol, Coll Earth Sci & Engn, Qingdao 266590, Peoples R China 2.Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing 210023, Peoples R China 3.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550002, Peoples R China 4.Sun Yat Sen Univ, Sch Marine Sci, Guangzhou 510006, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Rucao,Tan, Qinping,Wang, Xiao-Lei,et al. A metasedimentary origin for gold deposits in the Dian-Qian-Gui "Golden Triangle" of Southwest China[J]. ORE GEOLOGY REVIEWS,2023,159:12. |
| APA | Li, Rucao.,Tan, Qinping.,Wang, Xiao-Lei.,Sun, Xiaoming.,Yang, Tao.,...&Feng, Yuzhou.(2023).A metasedimentary origin for gold deposits in the Dian-Qian-Gui "Golden Triangle" of Southwest China.ORE GEOLOGY REVIEWS,159,12. |
| MLA | Li, Rucao,et al."A metasedimentary origin for gold deposits in the Dian-Qian-Gui "Golden Triangle" of Southwest China".ORE GEOLOGY REVIEWS 159(2023):12. |
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