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Shoshonitic intrusive suite in SE Guangxi: Petrology and geochemistry

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Chinese Science Bulletin

Abstract

A NE-direction Mesozoic shoshonitic intrusive suite in SE Guangxi has been identified in terms of geological, petrological and geochemical investigations. The shoshonitic intrusives are characterized by enrichment of LILE, HFSE and LREE and no obvious Nb-Ta depletion, similar to those potassic rocks formed in within-plate and rifting environments. Unlike most shoshonitic rocks forming in arc settings, the SE Guangxi shoshonitic intrusives were likely generated during regional lithosphere extension induced by upwelling of asthenosphere mantle.

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Authors and Affiliations

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

    Xianhua Li, Hanwen Zhou & Ying Liu

  2. Department of Earth Sciences, University of Hong Kong, Pokfulam Road, Hong Kong, China

    Xianhua Li & Min Sun

  3. Department of Geology, Taiwan University, 106-17, Taipei, China

    Hanwen Zhou, Chi-yu Lee & Chenhong Chen

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  1. Xianhua Li
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  2. Hanwen Zhou
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  3. Ying Liu
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  4. Chi-yu Lee
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  5. Min Sun
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  6. Chenhong Chen
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Li, X., Zhou, H., Liu, Y. et al. Shoshonitic intrusive suite in SE Guangxi: Petrology and geochemistry. Chin.Sci.Bull. 45, 653–659 (2000). https://doi.org/10.1007/BF02886045

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  • DOI: https://doi.org/10.1007/BF02886045

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