IIT JAM
Gurmeet singh Asked a Question
August 7, 2020 5:35 pmpts 30 pts
  • IIT JAM
  • Geology (GG)

Sir, please explain 1st point.

The lowest stage has a strong influence of basic rocks. Ihis unit Is believed to represe the relics of the primordial crust i.e. the part of the first formed crust of the earth resltin through the consolidation of the gaseous or molten planet. Ihese rocks are preserved undigested masses or "xenoliths in a vast country of granitic gneisses.
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  • Sajan sarthak sahoo Best Answer
    It is representing earth 🌎 when is originated created from gaseous hot molten magma and it was revolving as now so the denswr mass wentdown as core of Fe,Ni . But the crust of...
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    Gurmeet singh
    sir granitic gneiss represent kr rhi hai today's crust and usme xenoliths representing early Archean rocks fragments. ?
  • Rahul pandey thankyou
    The primordial crust on the Earth formed from the crystallization of the surface magma ocean during the Hadean. They are mainly of basic composition. Due to successive recycling of...
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    Gurmeet singh
    sir early crust/archean crust is of basic composition?
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