Sedimentary textures formed by aqueous processes, Erebus crater, Meridiani Planum, Mars

被引：64

作者：

Grotzinger, J. ^{[1
]}

Bell, J., III

Herkenhoff, K.

Johnson, J.

Knoll, A.

McCartney, E.

McLennan, S.

Metz, J.

Moore, J.

Squyres, S.

Sullivan, R.

Ahronson, O.

ArvIdson, R.

Joliff, B.

Golombek, M.

Lewis, K.

Parker, T.

Soclerblom, J.

机构：

[1] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA

[2] Cornell Univ, Dept Astron, Ithaca, NY 14853 USA

[3] US Geol Survey, Flagstaff, AZ 86001 USA

[4] Harvard Univ, Bot Museum, Cambridge, MA 02138 USA

[5] SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA

[6] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA

[7] Washington Univ, Dept Earth & Planetary Sci, St Louis, MO 63130 USA

[8] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

来源：

GEOLOGY | 2006年 / 34卷 / 12期

关键词：

Mars; water; cross-lamination; shrinkage cracks; sedimentary structures;

D O I：

10.1130/G22985A.1

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

New observations at Erebus crater (Olympia outcrop) by the Mars Exploration Rover Opportunity between sols 671 and 735 (a sol is a martian day) indicate that a diverse suite of primary and penecontemporaneous sedimentary structures is preserved in sulfate-rich bedrock. Centimeter-scale trough (festoon) cross-lamination is abundant, and is better expressed and thicker than previously described examples. Postdepositional shrinkage cracks in the same outcrop are interpreted to have formed in response to desiccation. Considered collectively, this suite of sedimentary structures provides strong support for the involvement of liquid water during accumulation of sedimentary rocks at Meridiani Planum.

引用

页码：1085 / 1088

页数：4

共 18 条

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