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Volume 12
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10.3390/min12091144
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Article

Formation of the Miaoan Au-Polymetallic Deposit in the Northern Taihang Mountain, North China Craton: Ore Geology, Geochronological and Geochemical Perspectives

by
Jie Li
1,2,3,
Nan Li
1,
Meiyun Wang
4,
Yingxin Song
5,
Zongyuan Tang
6,
Pu Zhang
6,
Guang Wang
7 and
Lipeng Zhang
3,*
1
Hebei Key Laboratory of Strategic Critical Mineral Resources, Hebei GEO University, Shijiazhuang 050031, China
2
Applied Nuclear Technology in Geosciences Key Laboratory of Sichuan Province, Chengdu University of Technology, Chengdu 610059, China
3
Center of Deep Sea Research, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
4
School of Water Resources and Environment, Hebei GEO University, Shijiazhuang 050031, China
5
Institute of Geological Sciences of Shandong Province, Jinan 250013, China
6
Institute of Geological Survey, Hebei GEO University, Shijiazhuang 050031, China
7
CNBM Geological Engineering Exploration Academy Co., Ltd., Beijing 100102, China
*
Author to whom correspondence should be addressed.
Minerals 2022, 12(9), 1144; https://doi.org/10.3390/min12091144
Submission received: 14 August 2022 / Revised: 4 September 2022 / Accepted: 6 September 2022 / Published: 10 September 2022
(This article belongs to the Special Issue Granitic Intrusion and Related Mineralization in Asia)
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Abstract

Several gold ore-concentrated areas have been recognized in the destruction zone of the North China Craton (NCC). However, the deposits in the western part of the destruction zone have received less attention. Miaoan, a typical Au-polymetallic deposit in the northern Taihang Mountain, provides a good sample for deepening our understanding of the genesis of gold deposits in the western destruction zone. In this study, detailed ore geology, pyrite Rb-Sr age, trace element and S-C-O isotopes of Au-bearing ores were conducted to constrain the source of ore-forming materials and their tectonic setting. The pyrites obtain an Rb-Sr isochron age of 129.5 ± 2.5 Ma, consistent with those of magmatic rocks in this deposit, suggesting their genetic relationship. The δ34S values ranging from −5.5‰ to 1.6‰ and the high Co/Ni and Y/Ho ratios of pyrites indicate the mantle-crust mixing characteristics of ore-forming fluids. The δ13C (−6.3‰ to −2.0‰) and δ18O (9.3‰ to 17.6‰) values of Au-bearing ores and calcites suggest mixing characteristics as well. Geochronologically, the Miaoan Au-polymetallic deposit was formed during the destruction of the NCC. We propose that the Miaoan Au-polymetallic deposit is a decratonic gold deposit and that its ore-forming materials have a mixed source of mantle and crust.
Keywords: Miaoan Au-polymetallic deposit; S-C-O isotopes; pyrite Rb-Sr dating; northern Taihang Mountain; North China Craton Miaoan Au-polymetallic deposit; S-C-O isotopes; pyrite Rb-Sr dating; northern Taihang Mountain; North China Craton

Share and Cite

MDPI and ACS Style

Li, J.; Li, N.; Wang, M.; Song, Y.; Tang, Z.; Zhang, P.; Wang, G.; Zhang, L. Formation of the Miaoan Au-Polymetallic Deposit in the Northern Taihang Mountain, North China Craton: Ore Geology, Geochronological and Geochemical Perspectives. Minerals 2022, 12, 1144. https://doi.org/10.3390/min12091144

AMA Style

Li J, Li N, Wang M, Song Y, Tang Z, Zhang P, Wang G, Zhang L. Formation of the Miaoan Au-Polymetallic Deposit in the Northern Taihang Mountain, North China Craton: Ore Geology, Geochronological and Geochemical Perspectives. Minerals. 2022; 12(9):1144. https://doi.org/10.3390/min12091144

Chicago/Turabian Style

Li, Jie, Nan Li, Meiyun Wang, Yingxin Song, Zongyuan Tang, Pu Zhang, Guang Wang, and Lipeng Zhang. 2022. "Formation of the Miaoan Au-Polymetallic Deposit in the Northern Taihang Mountain, North China Craton: Ore Geology, Geochronological and Geochemical Perspectives" Minerals 12, no. 9: 1144. https://doi.org/10.3390/min12091144

APA Style

Li, J., Li, N., Wang, M., Song, Y., Tang, Z., Zhang, P., Wang, G., & Zhang, L. (2022). Formation of the Miaoan Au-Polymetallic Deposit in the Northern Taihang Mountain, North China Craton: Ore Geology, Geochronological and Geochemical Perspectives. Minerals, 12(9), 1144. https://doi.org/10.3390/min12091144

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