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.
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Tewari, V.C. (2004). Extraterrestrial Impacts on Earth and Extinction of Life in the Himalaya. In: Seckbach, J., Chela-Flores, J., Owen, T., Raulin, F. (eds) Life in the Universe. Cellular Origin and Life in Extreme Habitats and Astrobiology, vol 7. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-1003-0_51
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DOI: https://doi.org/10.1007/978-94-007-1003-0_51
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