Pyroclastic Activity at Home Plate in Gusev Crater, Mars-Reference-Cited by-同舟云学术

Pyroclastic Activity at Home Plate in Gusev Crater, Mars

Published:2007-05-04 Issue:5825 Volume:316 Page:738-742
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Squyres S. W.¹²³⁴⁵,Aharonson O.¹²³⁴⁵,Clark B.C.¹²³⁴⁵,Cohen B. A.¹²³⁴⁵,Crumpler L.¹²³⁴⁵,de Souza P. A.¹²³⁴⁵,Farrand W. H.¹²³⁴⁵,Gellert R.¹²³⁴⁵,Grant J.¹²³⁴⁵,Grotzinger J. P.¹²³⁴⁵,Haldemann A. F. C.¹²³⁴⁵,Johnson J. R.¹²³⁴⁵,Klingelhöfer G.¹²³⁴⁵,Lewis K. W.¹²³⁴⁵,Li R.¹²³⁴⁵,McCoy T.¹²³⁴⁵,McEwen A. S.¹²³⁴⁵,McSween H. Y.¹²³⁴⁵,Ming D. W.¹²³⁴⁵,Moore J. M.¹²³⁴⁵,Morris R. V.¹²³⁴⁵,Parker T. J.¹²³⁴⁵,Rice J. W.¹²³⁴⁵,Ruff S.¹²³⁴⁵,Schmidt M.¹²³⁴⁵,Schröder C.¹²³⁴⁵,Soderblom L. A.¹²³⁴⁵,Yen A.¹²³⁴⁵

Affiliation:

1. Department of Astronomy, Space Sciences Building, Cornell University, Ithaca, NY 14853, USA.

2. Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA.

3. Lockheed Martin Corporation, Littleton, CO 80127, USA.

4. Institute of Meteoritics, University of New Mexico, Albuquerque, NM 87131, USA.

5. New Mexico Museum of Natural History and Science, Albuquerque, NM 87104, USA.

Abstract

Home Plate is a layered plateau in Gusev crater on Mars. It is composed of clastic rocks of moderately altered alkali basalt composition, enriched in some highly volatile elements. A coarsegrained lower unit lies under a finer-grained upper unit. Textural observations indicate that the lower strata were emplaced in an explosive event, and geochemical considerations favor an explosive volcanic origin over an impact origin. The lower unit likely represents accumulation of pyroclastic materials, whereas the upper unit may represent eolian reworking of the same pyroclastic materials.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference20 articles.

1. The Spirit Rover's Athena Science Investigation at Gusev Crater, Mars

2. Basaltic Rocks Analyzed by the Spirit Rover in Gusev Crater

3. Overview of the Spirit Mars Exploration Rover Mission to Gusev Crater: Landing site to Backstay Rock in the Columbia Hills

4. A martian solar day has a mean period of 24 hours 39 min 35.244 s and is referred to as a sol to distinguish it from a ∼3% shorter solar day on Earth.

5. All of the rocks at Home Plate are named after players from the Negro League of baseball that existed prior to the racial integration of Major League Baseball. The names are informal and not approved by the International Astronomical Union.

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