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Mineralogy, chemistry, and composition of organic compounds in the fresh carbonaceous chondrite Mukundpura: CM1 or CM2?
Meteorit. Planet. Sci. 55, 1681-1696 (2020)
We present here several laboratory analyses performed on the freshly fallen Mukundpura CM chondrite. Results of infrared transmission spectroscopy, thermogravimetry analysis, and reflectance spectroscopy show that Mukundpura is mainly composed of phyllosilicates. The rare earth trace elements composition and ultrahigh-resolution mass spectrometry of the soluble organic matter give results consistent with CM chondrites. Finally, Raman spectroscopy shows no signs of thermal alteration of the meteorite. All the results agree that Mukundpura has been strongly altered by water on its parent body. Comparison of the results obtained on the meteorite with those of other chondrites of known petrologic types leads to the conclusion that Mukundpura is similar to CM1 chondrites, which differ from its original classification as a CM2.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Spectral Reflectance Properties; Infrared-spectra; Water; Meteorite; Classification; Ci; Spectroscopy; Abundance; Origin; Type-1
ISSN (print) / ISBN
1086-9379
e-ISSN
1945-5100
Journal
Meteoritics & Planetary Science
Quellenangaben
Volume: 55,
Issue: 7,
Pages: 1681-1696
Publisher
University of Arizona, Department of Geosciences
Publishing Place
111 River St, Hoboken 07030-5774, Nj Usa
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Research Unit BioGeoChemistry and Analytics (BGC)
Grants
Université Grenoble Alpes (IRS/IDEX)
H2020 European Reseach Council (ERC)
H2020 European Reseach Council (ERC)