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    • Keywords


      Spherule; road dust; meteoritic impact; microtektites; fly ash.

    • Abstract


      This paper provides first report of silica-rich anthropogenic spherules of varying colour, shape, size, surface texture and chemical composition found in road-deposited sediments (RDS) of Allahabad city, Uttar Pradesh, India. Morphological details and lithophile elemental composition of the silica-rich spherules are compared to microtektites and impact spherules from India to demonstrate their striking morphological similarities and chemical variability. This study suggests the need to use spherule data carefully while assigning an impact origin to spherule-finds or spherule-bearing lithological horizons.

    • Author Affiliations


      Ambalika Niyogi1 Jayanta K Pati1 Suresh C Patel2 Dipak Panda3 Shiv K Patil4

      1. Department of Earth and Planetary Sciences, University of Allahabad, Allahabad 211 002, India.
      2. Department of Earth Sciences, Indian Institute of Technology, Powai, Mumbai 400 076, India.
      3. EPMA Laboratory (PLANEX), Physical Research Laboratory, Thaltej Campus, Ahmedabad 380 009, India.
      4. Dr. K.S. Krishnan Geomagnetic Research Laboratory, Leelapur Road, Hanumanganj, Allahabad 221 505, India.
    • Dates

  • Journal of Earth System Science | News

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      Posted on July 25, 2019

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