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Laser microarea analysis of40Ar-39Ar isochron age for Fanshan superlarge alunite deposit, Zhejiang Province, China

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Chinese Science Bulletin

Abstract

Laser micro-area analysis40Ar-39Ar isochron dating for pure alunite is first reported. Microarea40Ar-39Ar 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 analysis40Ar-39Ar isochron dating method in metallogenetic epoch studies for nonmetal deposits is also discussed.

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Authors and Affiliations

  1. Institute of Geology, Chinese Academy of Sciences, 100029, Beijing, China

    Shengli Ren, Xinhua Zhou & Zhuying Chu

  2. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, China

    Tongmo Dai

Authors
  1. Shengli Ren
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  2. Xinhua Zhou
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  3. Tongmo Dai
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  4. Zhuying Chu
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Ren, S., Zhou, X., Dai, T. et al. Laser microarea analysis of40Ar-39Ar isochron age for Fanshan superlarge alunite deposit, Zhejiang Province, China. Chin.Sci.Bull. 43, 2005–2008 (1998). https://doi.org/10.1007/BF03186994

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  • DOI: https://doi.org/10.1007/BF03186994

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