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Multistage ore-forming processes and metal source recorded in texture and composition of pyrite from the Late Triassic Asiha gold deposit, Eastern Kunlun Orogenic Belt, western China

文献类型：期刊论文

作者Liang, Gai-Zhong3,4; Yang, Kui-Feng2,3,4; Sun, Wei-Qiang1; Fan, Hong-Rui2,3,4; Li, Xing-Hui2,3; Lan, Ting-Guang5; Hu, Huan-Long5; Chen, You-Wei5
刊名JOURNAL OF ASIAN EARTH SCIENCES
出版日期2021-10-15
卷号220页码:16
关键词Pyrite Trace element Sulfur isotope Monazite U-Pb geochronology Asiha gold deposit Eastern Kunlun metallogenic belt
ISSN号1367-9120
DOI10.1016/j.jseaes.2021.104920
英文摘要The Asiha vein-type gold deposit, located in the Eastern Kunlun Orogenic Belt, provides an excellent opportunity for deciphering sources of metals and origins of orogenic intrusion-related gold systems. Within this deposit, four types of pyrite have been distinguished in three stages of hydrothermal activities. Pyrite (Py1) occurs in quartz-pyrite veins (stage I); pyrite (Py2), consisting of core (Py2a) and rim (Py2b), occurs in quartz-polymetallic sulfide veins (stage II); pyrite (Py3) occurs in quartz-pyrite-chalcopyrite veins (stage III). Py1 contains high concentrations of As (median of 2090 ppm) and Au (0.1 ppm). Py2a is enriched in Co (43.1 ppm) and Ni (50.9 ppm), but depleted in As and Au. By contrast, Py2b is enriched in As (7894 ppm) and Au (0.5 ppm), but depleted in Co and Ni. Although, Py3 shows enrichment in Co (1319 ppm) and Ni (1783 ppm), it is usually accompanied with chalcopyrite and visible gold. Three generations of gold-associated pyrite indicate three stages of hydrothermal mineralization, and the variation of metals in pyrite suggest that the ore-forming materials were predominantly derived from felsic magma mixed with different proportion of mafic-volcanic host rocks. U-Pb dating on hydrothermal monazite from stage III constrains the mineralization age at 227 +/- 7 Ma, which is coeval with the concealed granite porphyry (228 Ma). The delta S-34 values of the pyrites vary from +4.8 parts per thousand to +8.9 parts per thousand, which are slightly higher than magmatic pyrite in porphyry (+4.2 parts per thousand to +5.6 parts per thousand). We tentatively propose that the ore-forming materials are closely related to the granite porphyry and the evolved magmatic hydrothermal fluids.
WOS关键词PLASMA-MASS SPECTROMETRY ; SULFUR ISOTOPE FRACTIONATION ; BEARING ARSENIAN PYRITE ; TRACE-ELEMENT ZONATION ; IN-SITU SULFUR ; U-PB ; ICP-MS ; NORTHERN TIBET ; COPPER-DEPOSIT ; CENTRAL ZONE
资助项目Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0801]
WOS研究方向Geology
语种英语
WOS记录号WOS:000702290200002
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)
源URL[http://ir.iggcas.ac.cn/handle/132A11/102740]  
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Yang, Kui-Feng
作者单位1.Qinghai Shanjin Min Co Ltd, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
5.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550081, Peoples R China
推荐引用方式
GB/T 7714		 Liang, Gai-Zhong,Yang, Kui-Feng,Sun, Wei-Qiang,et al. Multistage ore-forming processes and metal source recorded in texture and composition of pyrite from the Late Triassic Asiha gold deposit, Eastern Kunlun Orogenic Belt, western China[J]. JOURNAL OF ASIAN EARTH SCIENCES,2021,220:16.
APA Liang, Gai-Zhong.,Yang, Kui-Feng.,Sun, Wei-Qiang.,Fan, Hong-Rui.,Li, Xing-Hui.,...&Chen, You-Wei.(2021).Multistage ore-forming processes and metal source recorded in texture and composition of pyrite from the Late Triassic Asiha gold deposit, Eastern Kunlun Orogenic Belt, western China.JOURNAL OF ASIAN EARTH SCIENCES,220,16.
MLA Liang, Gai-Zhong,et al."Multistage ore-forming processes and metal source recorded in texture and composition of pyrite from the Late Triassic Asiha gold deposit, Eastern Kunlun Orogenic Belt, western China".JOURNAL OF ASIAN EARTH SCIENCES 220(2021):16.

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来源：地质与地球物理研究所

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