Meteorites on Mars observed with Mars Exploration Rovers

Christian Schröder; D. S. Rodionov; T. J. McCoy; B. L. Jolliff; R. Gellert; L. R. Nittler; W. H. Farrand; J. R. Johnson; Steven Ruff; J. W. Ashley; D. W. Mittlefehldt; K. E. Herkenhoff; I. Fleischer; A. F.C. Haldemann; G. Klingelhöfer; D. W. Ming; R. V. Morris; Jr A. de Souza; S. W. Squyres; C. Weitz; A. S. Yen; J. Zipfel; T. Economou

doi:10.1029/2007JE002990

Meteorites on Mars observed with Mars Exploration Rovers

Christian Schröder, D. S. Rodionov, T. J. McCoy, B. L. Jolliff, R. Gellert, L. R. Nittler, W. H. Farrand, J. R. Johnson, Steven Ruff, J. W. Ashley, D. W. Mittlefehldt, K. E. Herkenhoff, I. Fleischer, A. F.C. Haldemann, G. Klingelhöfer, D. W. Ming, R. V. Morris, Jr A. de Souza, S. W. Squyres, C. WeitzA. S. Yen, J. Zipfel, T. Economou

Earth and Space Exploration, School of (SESE)

Research output: Contribution to journal › Article › peer-review

60 Scopus citations

Abstract

Reduced weathering rates due to the lack of liquid water and significantly greater typical surface ages should result in a higher density of meteorites on the surface of Mars compared to Earth. Several meteorites were identified among the rocks investigated during Opportunity's traverse across the sandy Meridiani plains. Heat Shield Rock is a IAB iron meteorite and has been officially recognized as "Meridiani Planum." Barberton is olivine-rich and contains metallic Fe in the form of kamacite, suggesting a meteoritic origin. It is chemically most consistent with a mesosiderite silicate clast. Santa Catarina is a brecciated rock with a chemical and mineralogical composition similar to Barberton. Barberton, Santa Catarina, and cobbles adjacent to Santa Catarina may be part of a strewn field. Spirit observed two probable iron meteorites from its Winter Haven location in the Columbia Hills in Gusev Crater. Chondrites have not been identified to date, which may be a result of their lower strengths and probability to survive impact at current atmospheric pressures. Impact craters directly associated with Heat Shield Rock, Barberton, or Santa Catarina have not been observed, but such craters could have been erased by eolian-driven erosion.

Original language	English (US)
Article number	E06S22
Journal	Journal of Geophysical Research: Planets
Volume	113
Issue number	6
DOIs	https://doi.org/10.1029/2007JE002990
State	Published - Jun 20 2008

ASJC Scopus subject areas

Geochemistry and Petrology
Geophysics
Earth and Planetary Sciences (miscellaneous)
Space and Planetary Science
Atmospheric Science
Astronomy and Astrophysics
Oceanography

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10.1029/2007JE002990

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Schröder, C., Rodionov, D. S., McCoy, T. J., Jolliff, B. L., Gellert, R., Nittler, L. R., Farrand, W. H., Johnson, J. R., Ruff, S., Ashley, J. W., Mittlefehldt, D. W., Herkenhoff, K. E., Fleischer, I., Haldemann, A. F. C., Klingelhöfer, G., Ming, D. W., Morris, R. V., de Souza, J. A., Squyres, S. W., ... Economou, T. (2008). Meteorites on Mars observed with Mars Exploration Rovers. Journal of Geophysical Research: Planets, 113(6), Article E06S22. https://doi.org/10.1029/2007JE002990

Schröder, C, Rodionov, DS, McCoy, TJ, Jolliff, BL, Gellert, R, Nittler, LR, Farrand, WH, Johnson, JR, Ruff, S, Ashley, JW, Mittlefehldt, DW, Herkenhoff, KE, Fleischer, I, Haldemann, AFC, Klingelhöfer, G, Ming, DW, Morris, RV, de Souza, JA, Squyres, SW, Weitz, C, Yen, AS, Zipfel, J & Economou, T 2008, 'Meteorites on Mars observed with Mars Exploration Rovers', Journal of Geophysical Research: Planets, vol. 113, no. 6, E06S22. https://doi.org/10.1029/2007JE002990

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AU - Rodionov, D. S.

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AU - Gellert, R.

AU - Nittler, L. R.

AU - Farrand, W. H.

AU - Johnson, J. R.

AU - Ruff, Steven

AU - Ashley, J. W.

AU - Mittlefehldt, D. W.

AU - Herkenhoff, K. E.

AU - Fleischer, I.

AU - Haldemann, A. F.C.

AU - Klingelhöfer, G.

AU - Ming, D. W.

AU - Morris, R. V.

AU - de Souza, Jr A.

AU - Squyres, S. W.

AU - Weitz, C.

AU - Yen, A. S.

AU - Zipfel, J.

AU - Economou, T.

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N2 - Reduced weathering rates due to the lack of liquid water and significantly greater typical surface ages should result in a higher density of meteorites on the surface of Mars compared to Earth. Several meteorites were identified among the rocks investigated during Opportunity's traverse across the sandy Meridiani plains. Heat Shield Rock is a IAB iron meteorite and has been officially recognized as "Meridiani Planum." Barberton is olivine-rich and contains metallic Fe in the form of kamacite, suggesting a meteoritic origin. It is chemically most consistent with a mesosiderite silicate clast. Santa Catarina is a brecciated rock with a chemical and mineralogical composition similar to Barberton. Barberton, Santa Catarina, and cobbles adjacent to Santa Catarina may be part of a strewn field. Spirit observed two probable iron meteorites from its Winter Haven location in the Columbia Hills in Gusev Crater. Chondrites have not been identified to date, which may be a result of their lower strengths and probability to survive impact at current atmospheric pressures. Impact craters directly associated with Heat Shield Rock, Barberton, or Santa Catarina have not been observed, but such craters could have been erased by eolian-driven erosion.

AB - Reduced weathering rates due to the lack of liquid water and significantly greater typical surface ages should result in a higher density of meteorites on the surface of Mars compared to Earth. Several meteorites were identified among the rocks investigated during Opportunity's traverse across the sandy Meridiani plains. Heat Shield Rock is a IAB iron meteorite and has been officially recognized as "Meridiani Planum." Barberton is olivine-rich and contains metallic Fe in the form of kamacite, suggesting a meteoritic origin. It is chemically most consistent with a mesosiderite silicate clast. Santa Catarina is a brecciated rock with a chemical and mineralogical composition similar to Barberton. Barberton, Santa Catarina, and cobbles adjacent to Santa Catarina may be part of a strewn field. Spirit observed two probable iron meteorites from its Winter Haven location in the Columbia Hills in Gusev Crater. Chondrites have not been identified to date, which may be a result of their lower strengths and probability to survive impact at current atmospheric pressures. Impact craters directly associated with Heat Shield Rock, Barberton, or Santa Catarina have not been observed, but such craters could have been erased by eolian-driven erosion.

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Meteorites on Mars observed with Mars Exploration Rovers

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