Petrology and geochemistry of granite in the Pangushan tungsten deposit, south Jiangxi Province

FANG Gui-cong; CHEN Yu-chuan; CHEN Zheng-hui; ZENG Zai-lin; LIU Cui-hui; TONG Qi-quan; SUN Jie; ZHU Guo-hua

doi:10.12029/gc20160506

2016 Vol. 43, No. 5

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FANG Gui-cong, CHEN Yu-chuan, CHEN Zheng-hui, ZENG Zai-lin, LIU Cui-hui, TONG Qi-quan, SUN Jie, ZHU Guo-hua. Petrology and geochemistry of granite in the Pangushan tungsten deposit, south Jiangxi Province[J]. Geology in China, 2016, (5): 1558-1568. doi: 10.12029/gc20160506

Citation:

FANG Gui-cong, CHEN Yu-chuan, CHEN Zheng-hui, ZENG Zai-lin, LIU Cui-hui, TONG Qi-quan, SUN Jie, ZHU Guo-hua. Petrology and geochemistry of granite in the Pangushan tungsten deposit, south Jiangxi Province[J]. Geology in China, 2016, (5): 1558-1568. doi: 10.12029/gc20160506

Petrology and geochemistry of granite in the Pangushan tungsten deposit, south Jiangxi Province

1.
Guangxi Key Laboratory of Hidden Metallic Ore Deposits Exploration, College of Earth Science, Guilin University of Technology, Guilin 541004, Guangxi, China
2.
Chinese Academy of Geological Sciences, Beijing 100037, China
3.
Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China
4.
Gannan Geological Survey Party, Jiangxi Bureau of Exploration & Development of Geology & Mineral Resources, Ganzhou 341000, Jiangxi, China
5.
Jiangxi Pangushan Tungsten Co., Ltd., Yudu 342311, Jiangxi, China

Received Date: 07 July 2016

Revised Date: 16 August 2016

Publish Date: 24 October 2016

Abstract

Abstract

Pangushan granite is genetically related to the well-known Pangushan large-sized tungsten deposit. However, due to great depth, its petrologic and geochemical data had been lacking until it was discovered by the Nanling Scientific Drilling Project (SP-NLSD-2) recently. In this paper, the petrologic and geochemical study conducted by the authors is reported. The granite is found to be ultra-acidic, alkali-rich, Na-poor, K-rich, meta- to weak-peraluminous and K-high calc-alkaline. Its corresponding granitic magma is highly evolved and W and Bi values are significantly higher than their average values in Yanshanian granite in Nanling region, indicating that they were the major ore-forming material source. When the granitic magma was evolved to the greisenization stage, Mo, Bi, Cu, Pb and REE were enriched, while W and Sn were depleted because of their migration into the hydrothermal solution. The intrusion of the Pangushan granite happened during intraplate extension.
- geochemistry /
- granite /
- tungsten deposit /
- Nanling Scientific Drilling /
- Pangushan