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

ABSTRACT: 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.

SUBMITTER: Schmitt-Kopplin P

PROVIDER: S-EPMC9833655 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature

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

Schmitt-Kopplin Philippe P Matzka Marco M Ruf Alexander A Menez Benedicte B Chennaoui Aoudjehane Hasnaa H Harir Mourad M Lucio Marianna M Hertzog Jasmine J Hertkorn Norbert N Gougeon Régis D RD Hoffmann Victor V Hinman Nancy W NW Ferrière Ludovic L Greshake Ansgar A Gabelica Zelimir Z Trif László L Steele Andrew A

Science advances 20230111 2

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<sub>3-7</sub> aliphatic branched carboxylic acids and aldehydes, olefins, and polyaromatics with and without heteroatoms in a homologous oxidation structural continuum. Organomagnesium compounds were extremely abundan ...[more]

PMID: 36630504

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

Publications

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

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