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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jess/122/04/1161-1171

    • Keywords

       

      Micrometeorites; cosmic spherules; chondrule; chondrites; Central Indian Ocean Basin.

    • Abstract

       

      Five hundred and eighteen cosmic spherules were identified among the 672 spherules handpicked from deep sea sediments by using Scanning Electron Microscope-Energy Dispersive Spectrometry (SEM-EDS). One of the spherules is found to enclose a spherical chondrule-like object that can be distinguished from the rest of the spherule by its shape, texture and composition and whose petrographic features, size and chemical composition are similar to chondrules from a chondritic meteorite, probably of carbonaceous chondritic nature. The present finding suggests that a small fraction of the particulate extraterrestrial matter enters the earth as fragments of larger meteorites.

    • Author Affiliations

       

      K Reshma1 N G Rudraswami1 M Shyam Prasad1

      1. National Institute of Oceanography (Council for Scientific and Industrial Research), Dona Paula, Goa 403 004, India.
    • Dates

       
  • Journal of Earth System Science | News

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