Raman Spectroscopy Studies of Equilibrated Ordinary Chondrites with H and L Group and Shock Metamorphism Degrees

Ordinary chondrites are the most common type of chondrites. As a non-destructive, rapid, and semi-quantitative technology, Raman spectroscopy is widely used in geoscience. This paper presents the results of a Raman spectroscopic study that we conducted for 16 ordinary chondrites with different chemi...

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Bibliographic Details
Published inMinerals (Basel) Vol. 12; no. 8; p. 1053
Main Authors Zhang, Yikai, Xia, Zhipeng, Miao, Bingkui, Huang, Jing, Zhang, Chuantong, Chen, Yan, Chen, Guozhu
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.08.2022
Subjects
Analytical methods
chemical groups
Chondrites
Classification
Laboratories
Lasers
Metamorphism
meteorite
Meteorites
Meteors & meteorites
Minerals
Olivine
ordinary chondrite
Phase transitions
Raman spectroscopy
Shock
Shock metamorphism
Silicon wafers
Spectroscopy
Temperature
China
Antarctica
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Summary:Ordinary chondrites are the most common type of chondrites. As a non-destructive, rapid, and semi-quantitative technology, Raman spectroscopy is widely used in geoscience. This paper presents the results of a Raman spectroscopic study that we conducted for 16 ordinary chondrites with different chemical groups and variable degrees of shock metamorphism. We found that: (1) the relationship between the Fe composition of olivine and pyroxene and the characteristic peaks of the Raman spectrum established by predecessors cannot be refined to the range of meteorites, the shock on meteorites also affects the Raman spectral characteristics of minerals and (2) the full width at half maximum (FWHM) of the shocked minerals (including high-pressure minerals) in meteorites increases in the Raman spectrum, however, no clear numerical relationship with pressure was found. Based on these data, we assess that the feasibility of Raman spectroscopy for the classification of chemical group and shock metamorphism in ordinary chondrites is not well established.
ISSN:2075-163X
2075-163X
DOI:10.3390/min12081053