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Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Pyroclastic activity at home plate in Gusev Crater, Mars
Author(s): Squyres, Steven W
Aharonson, Oded
Clark, Benton C
Cohen, Barbara A
Crumpler, Larry S
de Souza Jr, Paulo A
Farrand, William H
Gellert, Ralf
Grant, John A
Grotzinger, John P
Haldemann, Albert F C
Johnson, Jeffrey R
Klingelhoefer, Goestar
Lewis, Kevin W
Schröder, Christian
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Issue Date: 4-May-2007
Date Deposited: 28-Oct-2013
Citation: Squyres SW, Aharonson O, Clark BC, Cohen BA, Crumpler LS, de Souza Jr PA, Farrand WH, Gellert R, Grant JA, Grotzinger JP, Haldemann AFC, Johnson JR, Klingelhoefer G, Lewis KW & Schröder C (2007) Pyroclastic activity at home plate in Gusev Crater, Mars. Science, 316 (5825), pp. 738-742.
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.
DOI Link: 10.1126/science.1139045
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Notes: Additional co-authors: R Li, T McCoy, AS McEwen, HY McSween, DW Ming, JM Moore, RV Morris, TJ Parker, JW Rice Jr, S Ruff, M Schmidt, LA Soderblom, A Yen
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