Title |
Surficial Deposits at Gusev Crater Along Spirit Rover Traverses
|
---|---|
Published in |
Science, August 2004
|
DOI | 10.1126/science.1099849 |
Pubmed ID | |
Authors |
J. A. Grant, R. Arvidson, J. F. Bell, N. A. Cabrol, M. H. Carr, P. Christensen, L. Crumpler, D. J. Des Marais, B. L. Ehlmann, J. Farmer, M. Golombek, F. D. Grant, R. Greeley, K. Herkenhoff, R. Li, H. Y. McSween, D. W. Ming, J. Moersch, J. W. Rice, S. Ruff, L. Richter, S. Squyres, R. Sullivan, C. Weitz |
Abstract |
The Mars Exploration Rover Spirit has traversed a fairly flat, rock-strewn terrain whose surface is shaped primarily by impact events, although some of the landscape has been altered by eolian processes. Impacts ejected basaltic rocks that probably were part of locally formed lava flows from at least 10 meters depth. Some rocks have been textured and/or partially buried by windblown sediments less than 2 millimeters in diameter that concentrate within shallow, partially filled, circular impact depressions referred to as hollows. The terrain traversed during the 90-sol (martian solar day) nominal mission shows no evidence for an ancient lake in Gusev crater. |
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Geographical breakdown
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Italy | 1 | 1% |
Switzerland | 1 | 1% |
Japan | 1 | 1% |
Canada | 1 | 1% |
Unknown | 66 | 92% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 15 | 21% |
Professor > Associate Professor | 11 | 15% |
Student > Ph. D. Student | 9 | 13% |
Professor | 8 | 11% |
Student > Bachelor | 8 | 11% |
Other | 11 | 15% |
Unknown | 10 | 14% |
Readers by discipline | Count | As % |
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Physics and Astronomy | 12 | 17% |
Biochemistry, Genetics and Molecular Biology | 2 | 3% |
Business, Management and Accounting | 2 | 3% |
Computer Science | 2 | 3% |
Other | 8 | 11% |
Unknown | 11 | 15% |