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Extraterrestrial Impacts on Earth and Extinction of Life in the Himalaya

  • V. C. Tewari
Part of the Cellular Origin and Life in Extreme Habitats and Astrobiology book series (COLE, volume 7)

Abstract

The comets, meteorites and asteroids have collided with the Earth throughout geological history. The mass extinction at Permian-Triassic boundary and Cretaceous-Tertiary boundary is strongly supported by the extraterrestrial asteroidal impact theory in the Indian Himalayan sequences well exposed at Spiti in Western Himalaya and Um Sohryngkew section in Meghalaya, northeastern Himalaya. The carbon isotopic and palaeobiological events suggest extraterrestrial impacts at P/T and K/T boundaries all over the world. The early evolution of life, its diversification, carbon isotope chemostratigraphy, amino stratigraphy and extinction events have been discussed from the Indian Himalaya.

Keywords

Mass Extinction Platinum Group Element Boundary Section Amino Isobutyric Acid Adriatic Plate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 2004

Authors and Affiliations

  • V. C. Tewari
    • 1
    • 2
  1. 1.Wadia Institute of Himalayan GeologyUttaranchal
  2. 2.Uttaranchal, India and The Abdus Salam International Centre for Theoretical PhysicsTriesteItaly

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