Tectonic metallogenic characteristics of Pengshan magmatic core complex upheaval-detachment structure in Jiurui ore concentration area along the middle and lower reaches of Yangtze River

CHAO Huixia; YANG Xingke; LYU Guxian; CUI Wenwei; ZHANG Baolin; LEI Wanshan

doi:10.12097/j.issn.1671-2552.2023.04.005

2023 Vol. 42, No. 4

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Article navigation > Geological Bulletin of China > 2023 > 42(4): 554-565

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CHAO Huixia, YANG Xingke, LYU Guxian, CUI Wenwei, ZHANG Baolin, LEI Wanshan. 2023. Tectonic metallogenic characteristics of Pengshan magmatic core complex upheaval-detachment structure in Jiurui ore concentration area along the middle and lower reaches of Yangtze River. Geological Bulletin of China, 42(4): 554-565. doi: 10.12097/j.issn.1671-2552.2023.04.005

Citation:

CHAO Huixia, YANG Xingke, LYU Guxian, CUI Wenwei, ZHANG Baolin, LEI Wanshan. 2023. Tectonic metallogenic characteristics of Pengshan magmatic core complex upheaval-detachment structure in Jiurui ore concentration area along the middle and lower reaches of Yangtze River. Geological Bulletin of China, 42(4): 554-565. doi: 10.12097/j.issn.1671-2552.2023.04.005

Tectonic metallogenic characteristics of Pengshan magmatic core complex upheaval-detachment structure in Jiurui ore concentration area along the middle and lower reaches of Yangtze River

1.
School of Earth Science and Resources, Chang'an University, Xi'an 710054, Shaanxi, China
2.
Key Laboratory of Western Mineral Resources and Geological Engineering Ministry of Education, Chang'an University, Xi'an 710054, Shaanxi, China
3.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
4.
Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China

More Information

Corresponding author: YANG Xingke, xky6105@chd.edu.cn

Received Date: 27 July 2022

Revised Date: 16 September 2022

Publish Date: 15 April 2023

Abstract

Abstract

Jiurui ore concentration area is an important part of the middle and lower reaches of Yangtze River metallogenic belt.The study area of Pengshan polymetallic ore field is located in the south of Jiurui ore concentration area, which is rich in mineral resources, but the structural pattern is controversial.In this paper, based on the comprehensive analysis of geological and geophysical characteristics, it is proposed that Pengshan ore field is controlled by the structure of magmatic core complex, and the core of Pengshan magmatic core complex upheaval-detachment structure is composed of elliptical granitoid intrusive rock mass, which was a hidden uplift in the middle Yanshanian period and was shaped in the late Yanshanian period.The peripheral shallow sedimentary rocks are in a domed zonal distribution around the magmatic core complex.The peripheral fault zone tends to deviate from the direction of magmatic core complex and shows a shovel distribution, indicating the detachment structure characteristics.The halo type ore belt types of Pengshan ore field, with the concealed granitic body in the core as the center, the change of high temperature ore to low temperature ore occurs in the surrounding, such as arsenite(arsenopyrite)-tin ore - lead-zinc ore - fluorite ore - barite ore and so on, which is also the result of mineral enrichment along the multi-level detachment faults, and the mineralization occurs in the inner and outer contact zone of the magmatic core complex, forming skarn type, porphyry type and hydrothermal vein type Sn-Pb-Zn polymetallic deposits in the structural relaxation stage.
- magmatic core complex /
- Yanshanian /
- Jiurui ore concentration area /
- Pengshan /
- mineral exploration engineering

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References

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