东天山卡拉塔格西二区铁铜矿床地质地球化学特征及成因

陈磊; 王京彬; 邓小华; 吴湘滨; 邹海洋; 张会琼; 毛启贵; 孙燕

doi:10.3799/dqkx.2018.157

Volume 43 Issue 9

Sep. 2018

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Chen Lei, Wang Jingbin, Deng Xiaohua, Wu Xiangbin, Zou Haiyang, Zhang Huiqiong, Mao Qigui, Sun Yan, 2018. Geological and Geochemical Characteristics and Genesis of Xierqu Fe-Cu Deposit in the Kalatag District, Eastern Tianshan, NW China. Earth Science, 43(9): 3065-3085. doi: 10.3799/dqkx.2018.157

Citation:

Chen Lei, Wang Jingbin, Deng Xiaohua, Wu Xiangbin, Zou Haiyang, Zhang Huiqiong, Mao Qigui, Sun Yan, 2018. Geological and Geochemical Characteristics and Genesis of Xierqu Fe-Cu Deposit in the Kalatag District, Eastern Tianshan, NW China. Earth Science, 43(9): 3065-3085. doi: 10.3799/dqkx.2018.157

Citation:

Chen Lei, Wang Jingbin, Deng Xiaohua, Wu Xiangbin, Zou Haiyang, Zhang Huiqiong, Mao Qigui, Sun Yan, 2018. Geological and Geochemical Characteristics and Genesis of Xierqu Fe-Cu Deposit in the Kalatag District, Eastern Tianshan, NW China. Earth Science, 43(9): 3065-3085. doi: 10.3799/dqkx.2018.157

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Geological and Geochemical Characteristics and Genesis of Xierqu Fe-Cu Deposit in the Kalatag District, Eastern Tianshan, NW China

doi: 10.3799/dqkx.2018.157

Chen Lei^{1,2,3
,},
Wang Jingbin^{1,2,3
,
,},
Deng Xiaohua³,
Wu Xiangbin^1,2,
Zou Haiyang^1,2,
Zhang Huiqiong³,
Mao Qigui³,
Sun Yan³

1.
School of Geosciences and Info-Physics, Central South University, Changsha 410083, China
2.
Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring, Ministry of Education, Central South University, Changsha 410083, China
3.
Beijing Institute of Geology for Mineral Resources, Beijing 100012, China

Received Date: 2018-03-26
Publish Date: 2018-09-15

Abstract

Abstract

Xierqu is a newly discovered Fe-Cu deposit in the Kalatag district of the eastern Tianshan, NW China. However, the genesis of deposit remains relatively unclear. Electron probe, fluid inclusion and H, O isotopes are studied in this paper. It is found that the ore body is hosted by volcanic rocks and pyroclastic rocks of the Dananhu Formation, and controlled by NW-trending faults. The ore is dominated by massive and banding structures, and is mainly of granular and metasomatic ore textures. The metallic minerals are comprised of magnetite, and the gangue minerals consist of garnet, epidote, chlorite and calcite. Based on the ore textures, structures and observed mineral assemblages, the deposit was formed in a four-stage hydrothermal process, namely dry skarn, magnetite sulfide and carbonate stages. Microthermometric data shows that the ore fluid system evolved from middle-high temperature (304-352℃), probably magmatic hydrothermal to lower temperature (151-270℃) meteoric fluid, which is confirmed by H-O isotopes. We thus propose that the Xierqu Fe-Cu deposit may be considered as a skarn mineral system.
- Xierqu Fe-Cu deposit,
- electron probe,
- fluid inclusion,
- H-O isotopes,
- Kalatag,
- eastern Tianshan,
- geochemistry

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References(56)

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Geological and Geochemical Characteristics and Genesis of Xierqu Fe-Cu Deposit in the Kalatag District, Eastern Tianshan, NW China

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