Brine-driven destruction of clay minerals in Gale crater, Mars

被引：66

作者：

Bristow, T. F. ^{[1
]}

Grotzinger, J. P. ^{[2
]}

Rampe, E. B. ^{[3
]}

Cuadros, J. ^{[4
]}

Chipera, S. J. ^{[5
]}

Downs, G. W. ^{[6
]}

Fedo, C. M. ^{[7
]}

Frydenvang, J. ^{[8
]}

McAdam, A. C. ^{[9
]}

Morris, R., V ^{[3
]}

Achilles, C. N. ^{[9
]}

Blake, D. F. ^{[1
]}

Castle, N. ^{[5
]}

Craig, P. ^{[5
]}

Des Marais, D. J. ^{[1
]}

Downs, R. T. ^{[6
]}

Hazen, R. M. ^{[10
]}

Ming, D. W. ^{[3
]}

Morrison, S. M. ^{[10
]}

Thorpe, M. T. ^{[11
]}

Treiman, A. H. ^{[12
]}

Tu, V ^{[11
]}

Vaniman, D. T. ^{[5
]}

Yen, A. S. ^{[13
]}

Gellert, R. ^{[14
]}

Mahaffy, P. R. ^{[9
]}

Wiens, R. C. ^{[15
]}

Bryk, A. B. ^{[16
]}

Bennett, K. A. ^{[17
]}

Fox, V. K. ^{[2
,19
]}

Millken, R. E. ^{[18
]}

Fraeman, A. A. ^{[13
]}

Vasavada, A. R. ^{[13
]}

机构：

[1] NASA, Eobiol Branch, Ames Res Ctr, Moffett Field, CA 94035 USA

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

[3] NASA, Astromat Res & Explorat Sci Div, Johnson Space Ctr, Houston, TX 77058 USA

[4] Nat Hist Museum, Dept Earth Sci, London SW7 5BD, England

[5] Planetary Sci Inst, Tucson, AZ 85719 USA

[6] Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA

[7] Univ Tennessee, Dept Earth & Planetary Sci, Knoxville, TN 37996 USA

[8] Univ Copenhagen, Globe Inst, Copenhagen, Denmark

[9] NASA, Solar Syst Explorat Div, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[10] Carnegie Inst Sci, Earth & Planets Lab, Washington, DC 20015 USA

[11] NASA, Jacobs Technol Jacobs JETS Contract, Astromat Res & Explorat Sci Div, Johnson Space Ctr, Houston, TX 77058 USA

[12] Univ Space Res Assoc, Lunar & Planetary Inst, Houston, TX 77058 USA

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

[14] Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada

[15] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[16] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA

[17] US Geol Survey, Astrogeol Sci Ctr, Flagstaff, AZ 86001 USA

[18] Brown Univ, Dept Earth Environm Sci & Planetary Sci, Providence, RI 02912 USA

[19] Univ Minnesota, Dept Earth & Envimnmental Sci, Minneapolis, MN 55455 USA

来源：

SCIENCE | 2021年 / 373卷 / 6551期

关键词：

CRYSTAL-STRUCTURE; GEOCHEMISTRY; CALIBRATION; LAKE; SERPENTINIZATION; EVOLUTION; MUDSTONE; TEM;

D O I：

10.1126/science.abg5449

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Mars' sedimentary rock record preserves information on geological (and potential astrobiological) processes that occurred on the planet billions of years ago. The Curiosity rover is exploring the lower reaches of Mount Sharp, in Gale crater on Mars. A traverse from Vera Rubin ridge to Glen Torridon has allowed Curiosity to examine a lateral transect of rock strata laid down in a martian lake similar to 3.5 billion years ago. We report spatial differences in the mineralogy of time-equivalent sedimentary rocks <400 meters apart. These differences indicate localized infiltration of silica-poor brines, generated during deposition of overlying magnesium sulfate-bearing strata. We propose that destabilization of silicate minerals driven by silica-poor brines (rarely observed on Earth) was widespread on ancient Mars, because sulfate deposits are globally distributed.

引用

页码：198 / +

页数：38

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