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Extraterrestrial impacts: The big splash

Smit, Jan (1997) Extraterrestrial impacts: The big splash. Nature, 390 (6658). pp. 340-341. ISSN 0028-0836. doi:10.1038/36993.

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Seventy per cent of the Earth is covered with sea water, and most of that is ocean, so most of the large asteroids and comets striking the planet should hit deep water. But very little remains of these impacts — virtually all evidence of large impacts, in the form of craters and associated debris, is found on land. On page 357 of this issue, Gersonde et al. describe the evidence for and consequences of the impact of an asteroid, 1-4 km in diameter, in a 5,000-m-deep ocean basin, 1,500 km southwest of Chile. The asteroid hit the Earth in the late Pliocene, some 2.15 million years ago.

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Additional Information:© 1997 Macmillan Publishers Ltd.
Issue or Number:6658
Record Number:CaltechAUTHORS:20150617-092631894
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:58311
Deposited By: Tony Diaz
Deposited On:17 Jun 2015 16:33
Last Modified:10 Nov 2021 22:03

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