中印度盾基底克拉通Amgaon和Khairagarh地区基性岩脉的地球化学、岩石成因和构造背景:对前寒武纪地壳演化的制约

Journal of Atmospheric & Earth Science Pub Date : 2022-12-31 DOI:10.24966/aes-8780/100030

H. Chauhan

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引用次数: 0

摘要

岩浆岩(岩脉、岩脉群和岩脉群)与基底岩的主要存在表明研究区经历了较深的侵蚀作用，暴露出基底岩，这些岩浆岩(岩脉、岩脉群和岩脉)实际上代表了幔源熔融体的管道系统，对中印度盾区前寒武纪地壳演化过程有重要贡献

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Geochemistry, Petrogenesis and Tectonic Setting of the Mafic Dykes from the Amgaon and Khairagarh Regions, Bastar Craton, Central Indian Shield: Constraints on the Precambrian Crustal Evolution

The presence of dominantly dykes, dyke swarms and sills along with the basement rocks indicate that the study area has undergone deep erosion exposing the basement rocks and these magmatic bodies (dykes, dyke swarms and sills) actually represent the plumbing system for the mantle derived melts, which contributed significantly to the Precambrian crustal evolution processes in the Central Indian shield

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Journal of Atmospheric & Earth Science

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