Zircon U-Pb Age Dating for the Yangcun Granite Masses from South Jiangxi Province and Its Geological Significance

HOU Ke-jun; CHEN Zhen-yu; WANG Deng-hong; CHEN Zheng-hui; ZHAO Zheng

2012 Vol. 31, No. 3

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Article navigation > Rock and Mineral Analysis > 2012 > 31(3): 549-553

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HOU Ke-jun, CHEN Zhen-yu, WANG Deng-hong, CHEN Zheng-hui, ZHAO Zheng. Zircon U-Pb Age Dating for the Yangcun Granite Masses from South Jiangxi Province and Its Geological Significance[J]. Rock and Mineral Analysis, 2012, 31(3): 549-553.

Citation:

Zircon U-Pb Age Dating for the Yangcun Granite Masses from South Jiangxi Province and Its Geological Significance

1.
Key Laboratory of Metallogeny and Mineral Resource Assessment, Ministry of Land and Resources, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China
2.
Key Laboratory of Metallogeny and Mineral Resource Assessment, Ministry of Land and Resources, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China
3.
Key Laboratory of Metallogeny and Mineral Resource Assessment, Ministry of Land and Resources, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China
4.
Key Laboratory of Metallogeny and Mineral Resource Assessment, Ministry of Land and Resources, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China
5.
Key Laboratory of Metallogeny and Mineral Resource Assessment, Ministry of Land and Resources, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China

Received Date: 20 December 2011

Revised Date: 28 March 2012

Publish Date: 28 June 2012

Abstract

Abstract

The Yangcun granite mass is located northeast of Nanling and Xingguo country of the South Jiangxi area. It intrudes into metamorphosed rocks of Precambrian basement, and is adjacent to Cretaceous Sandstone and conglomerate at its west side with a fault. The forming time of this granite masses is difficult to judge correctly by its contact relations, and it was previously assigned to the Caledonian period. In this paper, we give a U-Pb age of (175.8±1.0) Ma of zircon by Laser Ablation-Multicollector Inductively Coupled Plasma-Mass Spectrometry (LA-MC-ICPMS) dating technology, thus ascertaining this granite mass as an intrusion during the period between the first and second stage of the early Yanshanian, and this period is the onset period of extensive mineralization of tungsten and multi-metals in the Nanling area. Therefore, the determination of the geochronology of the Yangcun granite masses will provide new information for prospecting in the future.
- Yangcun /
- granite /
- masses /
- LA-MC-ICPMS