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Open AccessArticle

A Mineralogical Context for the Organic Matter in the Paris Meteorite Determined by A Multi-Technique Analysis

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Institut de Physique Nucléaire d’Orsay, UMR 8608, CNRS/IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
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Lebanese Atomic Energy Commission, NCSR, Beirut 11-8281, Lebanon
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Institut d’Astrophysique Spatiale, UMR 8617, CNRS/Université Paris-Sud, Université Paris-Saclay, bâtiment 121, Université Paris-Sud, 91405 Orsay CEDEX, France
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Synchrotron Soleil, L’Orme des Merisiers, BP48, Saint Aubin, 91192 Gif sur Yvette CEDEX, France
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Centre de Recherche et de Restauration des musées de France, UMR 171, Palais du Louvre, 75001 Paris, France
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PSL Research University, Institut de Recherche Chimie Paris, Chimie ParisTech, CNRS UMR 8247, 75005 Paris, France
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Università degli Studi di Napoli Parthenope, Dip. di Scienze e Tecnologie, CDN IC4, I-80143 Naples, Italy
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Université Aix-Marseille, Laboratoire de Physique des Interactions Ioniques et Moléculaires (PIIM), UMR CNRS 7345, F-13397 Marseille, France
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Authors to whom correspondence should be addressed.
Received: 30 March 2019 / Revised: 17 May 2019 / Accepted: 25 May 2019 / Published: 30 May 2019
(This article belongs to the Special Issue Analytical Chemistry in Astrobiology)
This study is a multi-technique investigation of the Paris carbonaceous chondrite directly applied on two selected 500 × 500 µm² areas of a millimetric fragment, without any chemical extraction. By mapping the partial hydration of the amorphous silicate phase dominating the meteorite sample matrix, infrared spectroscopy gave an interesting glimpse into the way the fluid may have circulated into the sample and partially altered it. The TOF-SIMS in-situ analysis allowed the studying and mapping of the wide diversity of chemical moieties composing the meteorite organic content. The results of the combined techniques show that at the micron scale, the organic matter was always spatially associated with the fine-grained and partially-hydrated amorphous silicates and to the presence of iron in different chemical states. These systematic associations, illustrated in previous studies of other carbonaceous chondrites, were further supported by the identification by TOF-SIMS of cyanide and/or cyanate salts that could be direct remnants of precursor ices that accreted with dust during the parent body formation, and by the detection of different metal-containing large organic ions. Finally, the results obtained emphasized the importance of studying the specific interactions taking place between organic and mineral phases in the chondrite matrix, in order to investigate their role in the evolution story of primitive organic matter in meteorite parent bodies. View Full-Text
Keywords: Paris chondrite; TOF-SIMS imaging; micro-Infrared reflectance spectroscopy; visible reflectance spectroscopy; micro-Raman; micro-PIXE; chemical composition; organic species; aqueous alteration Paris chondrite; TOF-SIMS imaging; micro-Infrared reflectance spectroscopy; visible reflectance spectroscopy; micro-Raman; micro-PIXE; chemical composition; organic species; aqueous alteration
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Noun, M.; Baklouti, D.; Brunetto, R.; Borondics, F.; Calligaro, T.; Dionnet, Z.; Le Sergeant d’Hendecourt, L.; Nsouli, B.; Ribaud, I.; Roumie, M.; Della-Negra, S. A Mineralogical Context for the Organic Matter in the Paris Meteorite Determined by A Multi-Technique Analysis. Life 2019, 9, 44.

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