Tissint Martian Meteorite: A Fresh Look at the Interior, Surface, and Atmosphere of Mars

被引：110

作者：

Aoudjehane, H. Chennaoui ^{[1
,2
]}

Avice, G. ^{[3
]}

Barrat, J. -A. ^{[4
]}

Boudouma, O. ^{[2
]}

Chen, G. ^{[5
]}

Duke, M. J. M. ^{[6
]}

Franchi, I. A.

Gattacceca, J.

Grady, M. M. ^{[7
,9
]}

Greenwood, R. C. ^{[7
]}

Herd, C. D. K. ^{[5
]}

Hewins, R. ^{[10
,11
]}

Jambon, A. ^{[2
]}

Marty, B. ^{[3
]}

Rochette, P. ^{[8
]}

Smith, C. L. ^{[9
,12
,13
]}

Sautter, V. ^{[10
,11
]}

Verchovsky, A. ^{[7
]}

Weber, P. ^{[14
]}

Zanda, B. ^{[10
,11
]}

机构：

[1] Hassan II Univ Casablanca, GAIA Lab, Fac Sci, Casablanca, Morocco

[2] Univ Paris 06, Inst Terre Paris, UMR 7193, F-75005 Paris, France

[3] Univ Lorraine, Ctr Rech Petrograph & Geochim, F-54501 Vandoeuvre Les Nancy, France

[4] Univ Bretagne Occidentale, Inst Univ Europeen Mer, UMR 6538, F-29280 Plouzane, France

[5] Univ Alberta, Dept Earth & Atmospher Sci, Edmonton, AB T6G 2E3, Canada

[6] Univ Alberta, SLOWPOKE Nucl Reactor Facil, Edmonton, AB T6G 2J9, Canada

[7] Open Univ, Milton Keynes MK7 6AA, Bucks, England

[8] Aix Marseille Univ, CNRS, Ctr Europeen Rech & Enseignement Geosci Environm, F-13545 Aix En Provence 4, France

[9] Nat Hist Museum, Dept Mineral, London SW7 5BD, England

[10] Museum Natl Hist Nat, Lab Etud Mat Extraterrestre, F-75005 Paris, France

[11] CNRS, UMS2679, F-75005 Paris, France

[12] ESA European Space Agcy, European Space Res & Technol Ctr, NL-2200 AG Noordwijk, Netherlands

[13] UK Space Agcy, ESA Harwell Ctr, Didcot OX11 0QX, Oxon, England

[14] Univ Bern, Albert Einstein Ctr Fundamental Phys, CH-3012 Bern, Switzerland

来源：

SCIENCE | 2012年 / 338卷 / 6108期

基金：

英国科学技术设施理事会; 加拿大自然科学与工程研究理事会; 欧洲研究理事会;

关键词：

SHERGOTTITES; GEOCHEMISTRY; CHEMISTRY; DAR-AL-GANI-476; NITROGEN; SYSTEM; GASES; HF;

D O I：

10.1126/science.1224514

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：

Tissint (Morocco) is the fifth martian meteorite collected after it was witnessed falling to Earth. Our integrated mineralogical, petrological, and geochemical study shows that it is a depleted picritic shergottite similar to EETA79001A. Highly magnesian olivine and abundant glass containing martian atmosphere are present in Tissint. Refractory trace element, sulfur, and fluorine data for the matrix and glass veins in the meteorite indicate the presence of a martian surface component. Thus, the influence of in situ martian weathering can be unambiguously distinguished from terrestrial contamination in this meteorite. Martian weathering features in Tissint are compatible with the results of spacecraft observations of Mars. Tissint has a cosmic-ray exposure age of 0.7 +/- 0.3 million years, consistent with those of many other shergottites, notably EETA79001, suggesting that they were ejected from Mars during the same event.

引用

页码：785 / 788

页数：4

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