Mineralogy, chemistry, and composition of organic compounds in the fresh carbonaceous chondrite Mukundpura: CM1 or CM2?

S. Potin; P. Beck; L. Bonal; B. Schmitt; A. Garenne; F. Moynier; A. Agranier; P. Schmitt-Kopplin; A. K. Malik; E. Quirico

doi:10.1111/maps.13540

Mineralogy, chemistry, and composition of organic compounds in the fresh carbonaceous chondrite Mukundpura: CM1 or CM2?

S. Potin, P. Beck, L. Bonal, B. Schmitt, A. Garenne, F. Moynier, A. Agranier, P. Schmitt-Kopplin, A. K. Malik, E. Quirico

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Abstract

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.

Original language	English
Pages (from-to)	1681-1696
Number of pages	16
Journal	Meteoritics and Planetary Science
Volume	55
Issue number	7
DOIs	https://doi.org/10.1111/maps.13540
State	Published - 1 Jul 2020

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title = "Mineralogy, chemistry, and composition of organic compounds in the fresh carbonaceous chondrite Mukundpura: CM1 or CM2?",

abstract = "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.",

author = "S. Potin and P. Beck and L. Bonal and B. Schmitt and A. Garenne and F. Moynier and A. Agranier and P. Schmitt-Kopplin and Malik, {A. K.} and E. Quirico",

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TY - JOUR

T1 - Mineralogy, chemistry, and composition of organic compounds in the fresh carbonaceous chondrite Mukundpura

T2 - CM1 or CM2?

AU - Potin, S.

AU - Beck, P.

AU - Bonal, L.

AU - Schmitt, B.

AU - Garenne, A.

AU - Moynier, F.

AU - Agranier, A.

AU - Schmitt-Kopplin, P.

AU - Malik, A. K.

AU - Quirico, E.

PY - 2020/7/1

Y1 - 2020/7/1

N2 - 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.

AB - 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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JF - Meteoritics and Planetary Science

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ER -

Mineralogy, chemistry, and composition of organic compounds in the fresh carbonaceous chondrite Mukundpura: CM1 or CM2?

Abstract

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