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Schmitt-Kopplin, P. ; Matzka, M. ; Ruf, A.* ; Ménez, B.* ; Chennaoui Aoudjehane, H.* ; Harir, M. ; Lucio, M. ; Hertzog, J. ; Hertkorn, N. ; Gougeon, R.D.* ; Hoffmann, V.* ; Hinman, N.W.* ; Ferrière, L.* ; Greshake, A.* ; Gabelica, Z.* ; Trif, L.* ; Steele, A.*

Complex carbonaceous matter in Tissint martian meteorites give insights into the diversity of organic geochemistry on Mars.

Sci. Adv. 9:eadd6439 (2023)

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Open Access Gold as soon as Publ. Version/Full Text is submitted to ZB.

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We report a huge organic diversity in the Tissint Mars meteorite and the sampling of several mineralogical lithologies, which revealed that the organic molecules were nonuniformly distributed in functionality and abundance. The range of organics in Tissint meteorite were abundant C_3-7 aliphatic branched carboxylic acids and aldehydes, olefins, and polyaromatics with and without heteroatoms in a homologous oxidation structural continuum. Organomagnesium compounds were extremely abundant in olivine macrocrystals and in the melt veins, reflecting specific organo-synsthesis processes in close interaction with the magnesium silicates and temperature stresses, as previously observed. The diverse chemistry and abundance in complex molecules reveal heterogeneity in organic speciation within the minerals grown in the martian mantle and crust that may have evolved over geological time.

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Publication type Article: Journal article

Document type Scientific Article

Corresponding Author

Keywords Gale Crater; Petrogenesis; Subsurface; Atmosphere; Molecules; Recovery; Methane; Allende; Origin

ISSN (print) / ISBN 2375-2548

e-ISSN 2375-2548

Journal Science Advances

Quellenangaben Volume: 9, Issue: 2, Article Number: eadd6439

Publisher American Association for the Advancement of Science (AAAS)

Publishing Place Washington, DC [u.a.]

Non-patent literature Publications

Reviewing status Peer reviewed

Institute(s) Research Unit Analytical BioGeoChemistry (BGC)

Grants Deutsche Forschungsgemeinschaft (DFG, German Research foundation)