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Impact induced damage beneath craters

Xia, Kaiwen and Ahrens, Thomas J. (2001) Impact induced damage beneath craters. Geophysical Research Letters, 28 (18). pp. 3525-3527. ISSN 0094-8276. doi:10.1029/2001GL013001.

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Ackermann et al. (1975) described the subsurface structure of Meteor Crater and identified a fractured rock zone extending to about 1 km deep. The depth of the fractured/damage zone can be used to extract information about the impact cratering process. We impacted rock samples (San Marcos gabbro) in the laboratory and imaged the damage structure using both dicing and tomography methods. We propose a simple model to describe the damage zone depth based on the laboratory measurements. The model agrees well with other methods for the estimation of the projectile size of Meteor Crater and it may be used for estimates of damage around craters of other planets and moons.

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Additional Information:© 2001 by the American Geophysical Union. Paper number 2001GL013001. Received February 13 2001; revised May 17, 2001; accepted June 27, 2001. This material is based upon work supported by the National Aeronautics and Space Administration under Grant No. NAG5-10198. Contribution number 8757, Division of Geological and Planetary Sciences, California Institute of Technology. The authors would like to thank Professor Ravichandran from Aeronautics, Caltech for insightful discussions. The authors would also like to thank the two reviewers for valuable comments.
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Caltech Division of Geological and Planetary Sciences8757
Issue or Number:18
Record Number:CaltechAUTHORS:20141022-082941787
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:50663
Deposited By: Tony Diaz
Deposited On:22 Oct 2014 16:37
Last Modified:10 Nov 2021 18:58

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