Laser microarea analysis of40Ar-39Ar isochron age for Fanshan superlarge alunite deposit, Zhejiang Province, China |
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| Authors: | Shengli Ren Xinhua Zhou Tongmo Dai Zhuying Chu |
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| Affiliation: | REN Shengli 1, ZHOU Xinhua 1* , DAI Tongmo 2 and CHU Zhuying 1 1. Institute of Geology, Chinese Academy of Sciences, Beijing 100029, China; 2. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China. * Corresponding author |
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| Abstract: | Laser micro area analysis 40 Ar 39 Ar isochron dating for pure alunite is first reported. Micro area 40 Ar 39 Ar isochron dating results revealed that the metallogenetic epoch of Fanshan superlarge alunite deposit is 74.50 Ma, and this age is 10-20 Ma later than that of regional volcanic activity. Moreover, the potential application of micro area analysis 40 Ar 39 Ar isochron dating method in metallogenetic epoch studies for nonmetal deposits is also discussed. |
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| Keywords: | superlarge alunite deposit laser micro area analysis 40 Ar 39 Ar isochron Fanshan Zhejiang Province. |
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