New seismic survey over Chicxulub prepares for future drilling into the crater

Morgan, J. and Warner, M. and Urrutia-Fucugauchi, J. and Gulick, S. and Christeson, G. and Barton, P. J. and Rebolledo-Vieyra, M. and Melosh, J. (2005) New seismic survey over Chicxulub prepares for future drilling into the crater. Eos, 86 (36). pp. 325-328. DOI

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Sixty-five million years ago, a large meteorite hit the Earth and formed the ˜200-km-wide Chicxulub crater in Yucatán, Mexico. The well-known, massive extinction event at the Cretaceous-Tertiary (K-T) boundary appears to have been caused, at least in part, by this impact. In the first few seconds after impact the surface of the Earth was pushed down to form a cavity ˜35 km deep, and in the next few hundred seconds this cavity collapsed to form a multi-ring basin with an inner peak ring. To examine the rings and subsurface structure of this superbly preserved impact crater, a seismic experiment was shot across the crater in January and February 2005 by a team of scientists from Mexico, the United States, and the United Kingdom (Figure 1).

Item Type: Article
Uncontrolled Keywords: 2005 AREP 2005 P IA49
Subjects: 02 - Geodynamics, Geophysics and Tectonics
Divisions: 02 - Geodynamics, Geophysics and Tectonics
Journal or Publication Title: Eos
Volume: 86
Page Range: pp. 325-328
Identification Number:
Depositing User: Sarah Humbert
Date Deposited: 31 Jan 2011 16:35
Last Modified: 23 Jul 2013 09:59

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