Organic Matter in Interplanetary Dusts and Meteorites

Quirico, E.; Bonal, L.

doi:10.1007/978-3-319-96175-0_2

Cited by 6 publications

(3 citation statements)

References 167 publications

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“…Several reviews were published on organic matter in meteorites (e.g., Alexander et al 2017;Gilmour 2014;Glavin et al 2018). Some comparison of the organic matter in dust particles (IDPs and micrometeorites mostly collected in Antarctica) were previously published (Pizzarello et al 2006;Quirico and Bonal 2019). The objective of this section is to summarise the key-points of the comparison on organic matter between chondrites and dust particles: mostly abundances, elemental and chemical compositions, and structure, as already stated in the literature.…”

Section: Organic Matter Comparison Between Meteorites and Dust Particlesmentioning

confidence: 89%

“…There is not an exact similitude in the spectral parameters describing the structure of the polyaromatic matter present in pristine dusts-the ones having best escaped atmospheric heating (Busemann et al 2009;Dobricȃ et al 2011;Davidson et al 2012;Starkey et al 2013; and primitive chondrites (e.g., Bonal et al 2016;Busemann et al 2007;. This tends to underline the sampling of potentially distinct organic reservoirs, but dedicated experimental simulations are required to definitely rule out the effect of heating/oxidation and irradiation in space (Quirico and Bonal 2019).…”

Section: Organic Matter Comparison Between Meteorites and Dust Particlesmentioning

confidence: 99%

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Organic Matter in the Solar System—Implications for Future on-Site and Sample Return Missions

et al. 2020

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Solar system bodies like comets, asteroids, meteorites and dust particles contain organic matter with different abundances, structures and chemical composition. This chapter compares the similarities and differences of the organic composition in these planetary bodies. Furthermore, these links are explored in the context of detecting the most pristine organic material, either by on-site analysis or sample return missions. Finally, we discuss the targets of potential future sample return missions, as well as the contamination controls that should be in place in order to successfully study pristine organic matter.

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Section: Organic Matter Comparison Between Meteorites and Dust Particlesmentioning

confidence: 89%

Section: Organic Matter Comparison Between Meteorites and Dust Particlesmentioning

confidence: 99%

Organic Matter in the Solar System—Implications for Future on-Site and Sample Return Missions

et al. 2020

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“…While chondrules and calcium-aluminum inclusions were formed at elevated temperatures, meteorite matrices are a mixture of components that span formation conditions ranging from high-temperature condensation (e.g., enstatite whiskers) to much lower-temperature (e.g., phyllosilicates). Meteorite matrices are also hosting a diversity of organic compounds ranging from small molecules containing only a few carbon atoms to macromolecular refractory organic matter ( Sephton, 2002;Alexander et al, 2017;Quirico & Bonal, 2019). Meteorite matrices are thus an interplay of ingredients at the sub-µm scale, which requires analytical techniques with the subµm spatial resolution to unmix their composition and decipher their petrographic relations.…”

Section: Introductionmentioning

confidence: 99%

Nanoscale mineralogy and organic structure in Orgueil (CI) and EET 92042 (CR) carbonaceous chondrites studied with AFM‐IR spectroscopy

Phan

Rebois

Beck

et al. 2021

Meteorit & Planetary Scien

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Meteorite matrices from primitive chondrites are an interplay of ingredients at the sub-µm scale, which requires analytical techniques with the nanometer spatial resolution to decipher the composition of individual components in their petrographic context. Infrared spectroscopy is an effective method that enables the probing of vibrations at the molecule atomic scale of organic and inorganic compounds but is often limited to a few micrometers in spatial resolution. To efficiently distinguish spectral signatures of the different constituents, we apply here nano-infrared spectroscopy (AFM-IR), based on the combination of infrared and atomic force microscopy, having a spatial resolution beyond the diffraction limits. Our study aims to characterize two chosen meteorite samples to investigate primitive material in terms of bulk chemistry (the CI chondrite Orgueil) and organic composition (the CR chondrite EET 92042). We confirm that this technique allows unmixing the IR signatures of organics and minerals to assess the variability of organic structure within these samples. We report an investigation of the impact of the widely used chemical HF/HCl (hydrogen fluoride/hydrochloric acid) extraction on the nature of refractory organics (insoluble organic matter [IOM]) and provide insights on the mineralogy of meteorite matrices from these two samples by comparing to reference (extra)terrestrial materials. These findings are discussed with a perspective toward understanding the impact of post-accretional aqueous alteration and thermal metamorphism on the composition of chondrites. Last, we highlight that the heterogeneity of organic matter within meteoritic materials extends down to the nanoscale, and by comparison with IOMs, oxygenated chemical groups are not affected by acid extractions.

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New insights into the structure and formation of coals, terrestrial and extraterrestrial kerogens from resonant UV Raman spectroscopy

Quirico

Bonal

Montagnac

et al. 2020

Geochimica et Cosmochimica Acta

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Organic Matter in Interplanetary Dusts and Meteorites

Cited by 6 publications

References 167 publications

Organic Matter in the Solar System—Implications for Future on-Site and Sample Return Missions

Organic Matter in the Solar System—Implications for Future on-Site and Sample Return Missions

Nanoscale mineralogy and organic structure in Orgueil (CI) and EET 92042 (CR) carbonaceous chondrites studied with AFM‐IR spectroscopy

New insights into the structure and formation of coals, terrestrial and extraterrestrial kerogens from resonant UV Raman spectroscopy

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