In situ evidence for an ancient aqueous environment at Meridiani Planum, Mars

S. W. Squyres, J. P. Grotzinger, R. E. Arvidson, James Bell, W. Calvin, Philip Christensen, B. C. Clark, J. A. Crisp, W. H. Farrand, K. E. Herkenhoff, J. R. Johnson, G. Klingelhöfer, A. H. Knoll, S. M. McLennan, H. Y. McSween, R. V. Morris, J. W. Rice, R. Rieder, L. A. Soderblom

Research output: Contribution to journalArticle

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Abstract

Sedimentary rocks at Eagle crater in Meridiani Planum are composed of fine-grained siliciclastic materials derived from weathering of basaltic rocks, sulfate minerals (including magnesium sulfate and jarosite) that constitute several tens of percent of the rock by weight, and hematite. Cross-stratification observed in rock outcrops indicates eolian and aqueous transport. Diagenetic features include hematite-rich concretions and crystal-mold vugs. We interpret the rocks to be a mixture of chemical and siliciclastic sediments with a complex diagenetic history. The environmental conditions that they record include episodic inundation by shallow surface water, evaporation, and desiccation. The geologic record at Meridiani Planum suggests that conditions were suitable for biological activity for a period of time in martian history.

Original languageEnglish (US)
Pages (from-to)1709-1714
Number of pages6
JournalScience
Volume306
Issue number5702
DOIs
StatePublished - Dec 3 2004

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Mars
Temazepam
History
Desiccation
Magnesium Sulfate
Eagles
Sulfates
Minerals
Fungi
Weights and Measures
Water
ferric oxide
jarosite

ASJC Scopus subject areas

  • General

Cite this

Squyres, S. W., Grotzinger, J. P., Arvidson, R. E., Bell, J., Calvin, W., Christensen, P., ... Soderblom, L. A. (2004). In situ evidence for an ancient aqueous environment at Meridiani Planum, Mars. Science, 306(5702), 1709-1714. https://doi.org/10.1126/science.1104559

In situ evidence for an ancient aqueous environment at Meridiani Planum, Mars. / Squyres, S. W.; Grotzinger, J. P.; Arvidson, R. E.; Bell, James; Calvin, W.; Christensen, Philip; Clark, B. C.; Crisp, J. A.; Farrand, W. H.; Herkenhoff, K. E.; Johnson, J. R.; Klingelhöfer, G.; Knoll, A. H.; McLennan, S. M.; McSween, H. Y.; Morris, R. V.; Rice, J. W.; Rieder, R.; Soderblom, L. A.

In: Science, Vol. 306, No. 5702, 03.12.2004, p. 1709-1714.

Research output: Contribution to journalArticle

Squyres, SW, Grotzinger, JP, Arvidson, RE, Bell, J, Calvin, W, Christensen, P, Clark, BC, Crisp, JA, Farrand, WH, Herkenhoff, KE, Johnson, JR, Klingelhöfer, G, Knoll, AH, McLennan, SM, McSween, HY, Morris, RV, Rice, JW, Rieder, R & Soderblom, LA 2004, 'In situ evidence for an ancient aqueous environment at Meridiani Planum, Mars', Science, vol. 306, no. 5702, pp. 1709-1714. https://doi.org/10.1126/science.1104559
Squyres, S. W. ; Grotzinger, J. P. ; Arvidson, R. E. ; Bell, James ; Calvin, W. ; Christensen, Philip ; Clark, B. C. ; Crisp, J. A. ; Farrand, W. H. ; Herkenhoff, K. E. ; Johnson, J. R. ; Klingelhöfer, G. ; Knoll, A. H. ; McLennan, S. M. ; McSween, H. Y. ; Morris, R. V. ; Rice, J. W. ; Rieder, R. ; Soderblom, L. A. / In situ evidence for an ancient aqueous environment at Meridiani Planum, Mars. In: Science. 2004 ; Vol. 306, No. 5702. pp. 1709-1714.
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