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  2. 地质与地球物理研究所
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  4. 岩石圈演化国家重点实验室
Mineralization process of the Mazhala Au-Sb deposit, South Tibet: Constraints from fluid inclusions, H-O-S isotopes, and trace elements

文献类型：期刊论文

作者Li, Fei4; Zhang, Gangyang4,5; Deng, Zhou4; Zhang, Jianfang2; Qin, Zhipeng4,5; Chen, Xi1,4; Lan, Zhongwu3
刊名ORE GEOLOGY REVIEWS
出版日期2023-09-01
卷号160页码:17
ISSN号0169-1368
关键词Pyrite trace elements Sulfur isotopes Quartz fluid inclusions Hydrogen and oxygen isotopes Mazhala Au-Sb deposit
DOI10.1016/j.oregeorev.2023.105595
英文摘要The Mazhala deposit is a typical Au-Sb deposit in the northern Himalayan orogenic belt that has increasingly attracted worldwide attentions. However, debates remain regarding the source of ore-forming fluid and its evolutionary process. Herein, we investigate the genetic and compositional evolutionary characteristics of different types of pyrite grains in order to better constrain the ore-forming fluid source and ore-forming processes by means of Using in-situ trace and sulfur isotope data of pyrite and inclusion temperature and H-O isotope data of quartz. Based on the occurrence and morphological features of pyrite, four types of pyrite (Py0, Py1, Py2, and Py3) have been identified. The framboids of pyrite Py0 have high contents of Au, Ag, Cu, Pb, and Sb, with Co/Ni < l, and their delta S-34 values range from -34.0% to -19.3%, indicating a sedimentary-diagenetic origin. Py1 pyrite exhibits stark core-rim structure. The contents of Sn, Ti, Be and W in Py1c are higher, with Co/Ni > 1. The d34S of Py1c ranges from 0.30 to 3.9% (mean = 1.7%), indicating a magmatic hydrothermal transformation origin. Py1r, Py2, and Py3 differ greatly in pyrite morphology and trace element contents, with Co/Ni < 1, indicating as hydrothermal sedimentary transformation origin. The d34S values of Py1r, Py2, and Py3 vary from 1.4 to 6.50%, interpreted as the presence of metamorphic sulfur sources. The d34S values of Py1-Py2-Py3 firstly increases and then decreases, indicatinga fluid mixing process. The Mazhala ore-forming fluid is typical of low temperature (270-291 degrees C), low salinity (1.1-5.0 wt% NaCl equiv) and CO2-enrichment, with H-O isotopic compositions of quartz resembling magmatic and/or metamorphic water, which makes us to infer a mixture of magmatic and/or metamorphic water source for the Mazhala ore-forming fluid. The early pyrite grains were dissolved and reprecipitated under the action of fluid. In the process of multistage hydrothermal interaction, Au and other trace elements were released from the primary pyrite lattice into the fluid, forming the gold-bearing ore-forming fluid. Separation of fluid phase coupled with significant change in the pH value of fluid prompted the co-precipitation of Au and Sb to form the Mazhala Au-Sb deposit.
WOS关键词LA-ICP-MS ; OROGENIC GOLD DEPOSIT ; SULFUR ISOTOPES ; CARLIN-TYPE ; SEDIMENTARY PYRITE ; TECTONIC EVOLUTION ; ANTIMONY DEPOSIT ; HIMALAYAN OROGEN ; INVISIBLE GOLD ; ORE GENESIS
资助项目National Key Research and Development Program of China[2022YFC2905002] ; Sichuan Province Key Research and Development Program[2022YFS0465] ; Sichuan Province Key Research and Development Program[2022YFS0451] ; National Natural Science Foundation of China[41302066] ; National Natural Science Foundation of China[42273025] ; International Geoscience Programme[IGCP-741]
WOS研究方向Geology ; Mineralogy ; Mining & Mineral Processing
语种英语
出版者ELSEVIER
WOS记录号WOS:001064642700001
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; Sichuan Province Key Research and Development Program ; Sichuan Province Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Geoscience Programme ; International Geoscience Programme ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Sichuan Province Key Research and Development Program ; Sichuan Province Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Geoscience Programme ; International Geoscience Programme ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Sichuan Province Key Research and Development Program ; Sichuan Province Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Geoscience Programme ; International Geoscience Programme ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Sichuan Province Key Research and Development Program ; Sichuan Province Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Geoscience Programme ; International Geoscience Programme
源URL[http://ir.iggcas.ac.cn/handle/132A11/110817]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Zhang, Gangyang
作者单位1.Southwest Petr Univ, Coll Geosci & Technol, Chengdu 610500, Peoples R China
2.Zhejiang Inst Geosci, Hangzhou 311203, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
4.Chengdu Univ Technol, Coll Earth Sci, Minist Nat Resource, Key Lab Tecton Controls Mineralizat & Hydrocarbon, Chengdu 610059, Peoples R China
5.Tibet Huayu Min Co Ltd, Lhasa 850032, Peoples R China
推荐引用方式
GB/T 7714		 Li, Fei,Zhang, Gangyang,Deng, Zhou,et al. Mineralization process of the Mazhala Au-Sb deposit, South Tibet: Constraints from fluid inclusions, H-O-S isotopes, and trace elements[J]. ORE GEOLOGY REVIEWS,2023,160:17.
APA Li, Fei.,Zhang, Gangyang.,Deng, Zhou.,Zhang, Jianfang.,Qin, Zhipeng.,...&Lan, Zhongwu.(2023).Mineralization process of the Mazhala Au-Sb deposit, South Tibet: Constraints from fluid inclusions, H-O-S isotopes, and trace elements.ORE GEOLOGY REVIEWS,160,17.
MLA Li, Fei,et al."Mineralization process of the Mazhala Au-Sb deposit, South Tibet: Constraints from fluid inclusions, H-O-S isotopes, and trace elements".ORE GEOLOGY REVIEWS 160(2023):17.

入库方式： OAI收割

来源：地质与地球物理研究所

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