Ancient impact and aqueous processes at endeavour crater, Mars

S. W. Squyres; R. E. Arvidson; James Bell; F. Calef; B. C. Clark; B. A. Cohen; L. A. Crumpler; P. A. De Souza; W. H. Farrand; R. Gellert; J. Grant; K. E. Herkenhoff; J. A. Hurowitz; J. R. Johnson; B. L. Jolliff; A. H. Knoll; R. Li; S. M. McLennan; D. W. Ming; D. W. Mittlefehldt; T. J. Parker; G. Paulsen; M. S. Rice; Steven Ruff; C. Schröder; A. S. Yen; K. Zacny

doi:10.1126/science.1220476

Ancient impact and aqueous processes at endeavour crater, Mars

S. W. Squyres, R. E. Arvidson, James Bell, F. Calef, B. C. Clark, B. A. Cohen, L. A. Crumpler, P. A. De Souza, W. H. Farrand, R. Gellert, J. Grant, K. E. Herkenhoff, J. A. Hurowitz, J. R. Johnson, B. L. Jolliff, A. H. Knoll, R. Li, S. M. McLennan, D. W. Ming, D. W. MittlefehldtT. J. Parker, G. Paulsen, M. S. Rice, Steven Ruff, C. Schröder, A. S. Yen, K. Zacny

Earth and Space Exploration, School of (SESE)

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

168 Scopus citations

Abstract

The rover Opportunity has investigated the rim of Endeavour Crater, a large ancient impact crater on Mars. Basaltic breccias produced by the impact form the rim deposits, with stratigraphy similar to that observed at similar-sized craters on Earth. Highly localized zinc enrichments in some breccia materials suggest hydrothermal alteration of rim deposits. Gypsum-rich veins cut sedimentary rocks adjacent to the crater rim. The gypsum was precipitated from low-temperature aqueous fluids flowing upward from the ancient materials of the rim, leading temporarily to potentially habitable conditions and providing some of the waters involved in formation of the ubiquitous sulfate-rich sandstones of the Meridiani region.

Original language	English (US)
Pages (from-to)	570-576
Number of pages	7
Journal	Science
Volume	336
Issue number	6081
DOIs	https://doi.org/10.1126/science.1220476
State	Published - May 4 2012

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Squyres, S. W., Arvidson, R. E., Bell, J., Calef, F., Clark, B. C., Cohen, B. A., Crumpler, L. A., De Souza, P. A., Farrand, W. H., Gellert, R., Grant, J., Herkenhoff, K. E., Hurowitz, J. A., Johnson, J. R., Jolliff, B. L., Knoll, A. H., Li, R., McLennan, S. M., Ming, D. W., ... Zacny, K. (2012). Ancient impact and aqueous processes at endeavour crater, Mars. Science, 336(6081), 570-576. https://doi.org/10.1126/science.1220476

Squyres, SW, Arvidson, RE, Bell, J, Calef, F, Clark, BC, Cohen, BA, Crumpler, LA, De Souza, PA, Farrand, WH, Gellert, R, Grant, J, Herkenhoff, KE, Hurowitz, JA, Johnson, JR, Jolliff, BL, Knoll, AH, Li, R, McLennan, SM, Ming, DW, Mittlefehldt, DW, Parker, TJ, Paulsen, G, Rice, MS, Ruff, S, Schröder, C, Yen, AS & Zacny, K 2012, 'Ancient impact and aqueous processes at endeavour crater, Mars', Science, vol. 336, no. 6081, pp. 570-576. https://doi.org/10.1126/science.1220476

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abstract = "The rover Opportunity has investigated the rim of Endeavour Crater, a large ancient impact crater on Mars. Basaltic breccias produced by the impact form the rim deposits, with stratigraphy similar to that observed at similar-sized craters on Earth. Highly localized zinc enrichments in some breccia materials suggest hydrothermal alteration of rim deposits. Gypsum-rich veins cut sedimentary rocks adjacent to the crater rim. The gypsum was precipitated from low-temperature aqueous fluids flowing upward from the ancient materials of the rim, leading temporarily to potentially habitable conditions and providing some of the waters involved in formation of the ubiquitous sulfate-rich sandstones of the Meridiani region.",

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AU - Cohen, B. A.

AU - Crumpler, L. A.

AU - De Souza, P. A.

AU - Farrand, W. H.

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AU - Grant, J.

AU - Herkenhoff, K. E.

AU - Hurowitz, J. A.

AU - Johnson, J. R.

AU - Jolliff, B. L.

AU - Knoll, A. H.

AU - Li, R.

AU - McLennan, S. M.

AU - Ming, D. W.

AU - Mittlefehldt, D. W.

AU - Parker, T. J.

AU - Paulsen, G.

AU - Rice, M. S.

AU - Ruff, Steven

AU - Schröder, C.

AU - Yen, A. S.

AU - Zacny, K.

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AB - The rover Opportunity has investigated the rim of Endeavour Crater, a large ancient impact crater on Mars. Basaltic breccias produced by the impact form the rim deposits, with stratigraphy similar to that observed at similar-sized craters on Earth. Highly localized zinc enrichments in some breccia materials suggest hydrothermal alteration of rim deposits. Gypsum-rich veins cut sedimentary rocks adjacent to the crater rim. The gypsum was precipitated from low-temperature aqueous fluids flowing upward from the ancient materials of the rim, leading temporarily to potentially habitable conditions and providing some of the waters involved in formation of the ubiquitous sulfate-rich sandstones of the Meridiani region.

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Ancient impact and aqueous processes at endeavour crater, Mars

Abstract

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