东天山小热泉子矿床流体包裹体及矿床成因

张文东; 吴湘滨; 邓小华; 毛启贵; 张会琼; 杨利亚; 陈曦; 许骏; 张岩; 王洋

doi:10.3799/dqkx.2018.150

Volume 43 Issue 9

Sep. 2018

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Article Navigation > Earth Science > 2018 > 43(9): 3036-3048

Zhang Wendong, Wu Xiangbin, Deng Xiaohua, Mao Qigui, Zhang Huiqiong, Yang Liya, Chen Xi, Xu Jun, Zhang Yan, Wang Yang, 2018. Fluid Inclusions Constraints on the Origin of the Xiaorequanzi Deposit in Eastern Tianshan. Earth Science, 43(9): 3036-3048. doi: 10.3799/dqkx.2018.150

Citation:

Zhang Wendong, Wu Xiangbin, Deng Xiaohua, Mao Qigui, Zhang Huiqiong, Yang Liya, Chen Xi, Xu Jun, Zhang Yan, Wang Yang, 2018. Fluid Inclusions Constraints on the Origin of the Xiaorequanzi Deposit in Eastern Tianshan. Earth Science, 43(9): 3036-3048. doi: 10.3799/dqkx.2018.150

Citation:

Zhang Wendong, Wu Xiangbin, Deng Xiaohua, Mao Qigui, Zhang Huiqiong, Yang Liya, Chen Xi, Xu Jun, Zhang Yan, Wang Yang, 2018. Fluid Inclusions Constraints on the Origin of the Xiaorequanzi Deposit in Eastern Tianshan. Earth Science, 43(9): 3036-3048. doi: 10.3799/dqkx.2018.150

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Fluid Inclusions Constraints on the Origin of the Xiaorequanzi Deposit in Eastern Tianshan

doi: 10.3799/dqkx.2018.150

1.
School of Geosciences and Info-Physics, Central South University, Changsha 410083, China
2.
Beijing Institute of Geology for Mineral Resources, Beijing 100012, China
3.
School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China
4.
Henan Nonferous Metals Geological Exploration Institute, Zhengzhou 450052, China
5.
Chengdu Geological Research Institute of Sichuan Metallurgical and Geological Exploration Bureau, Chengdu 610203, China
6.
Sinotech Minerals Exploration Co., Ltd., Beijing 100012, China

Received Date: 2018-01-13
Publish Date: 2018-09-15

Abstract

Abstract

The Xiaorequanzi copper deposit is one of the earliest copper deposits discovered in the eastern Tianshan orogen. However, the characters and evolution of ore-forming fluid and the metallogenic mechanism remain relatively unclear. The fluid inclusions from different mineralization stages were analyzed by microscopic temperature measurement and laser-Raman spectrum in this paper. The mineralization process of the Xiaorequanzi deposit can be divided into VMS, hydrothermal overprinting and supergene mineralization periods. Among them, the VMS period can be subdivided into the pyrite and chalcopyrite-sphalerite stages, whilst the hydrothermal overprinting period can be subdivided into the quartz-sulfide and carbonate stages. Two types of fluid inclusions were identified in VMS period. The aqueous inclusions yield homogenization temperatures of 234-392℃, with salinities of 3.5%-13.3% NaCleqv. The hydrothermal overprinting period contains aqueous inclusions yielding homogenization temperatures of 122-296℃, with salinities of 1.4%-12.1% NaCleqv. These microthermometric results show that the ore fluid system evolved from high temperature, middle-high salinity magmatic hydrothermal to low temperature, middle-low salinity seawater. Thus, the deposit could be classified as VMS metallogenic system which has suffered hydrothermal overprinting.
- Xiaorequanzi deposit,
- fluid inclusions,
- VMS mineralization,
- hydrothermal overprinting,
- eastern Tianshan orogen,
- ore deposit geology

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References(67)

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Fluid Inclusions Constraints on the Origin of the Xiaorequanzi Deposit in Eastern Tianshan

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