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Boom boom pow : Shock-facilitated aqueous alteration and evidence for two shock events in the Martian nakhlite meteorites
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- Daly, L. (author)
- Univ Glasgow, Sch Geog & Earth Sci, Glasgow G12 8QQ, Lanark, Scotland;Curtin Univ, Sch Earth & Planetary Sci, Space Sci & Technol Ctr, GPO Box U1987, Perth, WA 6845, Australia;Univ Sydney, Australian Ctr Microscopy & Microanal, Sydney, NSW 2006, Australia
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- Lee, M. R. (author)
- Univ Glasgow, Sch Geog & Earth Sci, Glasgow G12 8QQ, Lanark, Scotland
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- Piazolo, S. (author)
- Univ Leeds, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, England
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- Griffin, S. (author)
- Univ Glasgow, Sch Geog & Earth Sci, Glasgow G12 8QQ, Lanark, Scotland
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- Bazargan, Mohsen (author)
- Uppsala universitet,Geofysik
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- Campanale, F. (author)
- Univ Glasgow, Sch Geog & Earth Sci, Glasgow G12 8QQ, Lanark, Scotland;Univ Pisa, Dipartimento Sci Terra, Via Santa Maria 53, I-56126 Pisa, Italy
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- Chung, P. (author)
- Univ Glasgow, Sch Geog & Earth Sci, Glasgow G12 8QQ, Lanark, Scotland
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- Cohen, B. E. (author)
- Univ Glasgow, Sch Geog & Earth Sci, Glasgow G12 8QQ, Lanark, Scotland
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- Pickersgill, A. E. (author)
- Univ Glasgow, Sch Geog & Earth Sci, Glasgow G12 8QQ, Lanark, Scotland
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- Hallis, L. J. (author)
- Univ Glasgow, Sch Geog & Earth Sci, Glasgow G12 8QQ, Lanark, Scotland
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- Trimby, P. W. (author)
- Oxford Instruments Nanoanal, High Wycombe HP12 3SE, Bucks, England
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- Baumgartner, R. (author)
- Univ New South Wales, Australian Ctr Astrobiol, Sydney, NSW 2052, Australia
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- Forman, L. V. (author)
- Curtin Univ, Sch Earth & Planetary Sci, Space Sci & Technol Ctr, GPO Box U1987, Perth, WA 6845, Australia
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- Benedix, G. K. (author)
- Curtin Univ, Sch Earth & Planetary Sci, Space Sci & Technol Ctr, GPO Box U1987, Perth, WA 6845, Australia;Western Australian Museum, Dept Earth & Planetary Sci, Locked Bag 49, Welshpool, WA 6986, Australia;Planetary Sci Inst, 1700 East Ft Lowell,Suite 106, Tucson, AZ 85719 USA
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(creator_code:org_t)
- American Association for the Advancement of Science (AAAS), 2019
- 2019
- English.
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In: Science Advances. - : American Association for the Advancement of Science (AAAS). - 2375-2548. ; 5:9
- Related links:
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Abstract
Subject headings
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- Nakhlite meteorites are similar to 1.4 to 1.3 Ga old igneous rocks, aqueously altered on Mars similar to 630 Ma ago. We test the theory that water-rock interaction was impact driven. Electron backscatter diffraction demonstrates that the meteorites Miller Range 03346 and Lafayette were heterogeneously deformed, leading to localized regions of brecciation, plastic deformation, and mechanical twinning of augite. Numerical modeling shows that the pattern of deformation is consistent with shock-generated compressive and tensile stresses. Mesostasis within shocked areas was aqueously altered to phyllosilicates, carbonates, and oxides, suggesting a genetic link between the two processes. We propose that an impact similar to 630 Ma ago simultaneously deformed the nakhlite parent rocks and generated liquid water by melting of permafrost. Ensuing water-rock interaction focused on shocked mesostasis with a high density of reactive sites. The nakhlite source location must have two spatially correlated craters, one similar to 630 Ma old and another, ejecting the meteorites, similar to 11 Ma ago.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geofysik (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geophysics (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Daly, L.
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Lee, M. R.
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Piazolo, S.
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Griffin, S.
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Bazargan, Mohsen
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Campanale, F.
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Chung, P.
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Cohen, B. E.
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Pickersgill, A. ...
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Hallis, L. J.
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Trimby, P. W.
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Baumgartner, R.
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Forman, L. V.
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Benedix, G. K.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Geophysics
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Geology
- Articles in the publication
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Science Advances
- By the university
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Uppsala University