Investigation of carbon in the Allan Hills A77278 meteorite via 2D and 3D Raman microspectroscopy
This paper reports the first Raman spectral and imaging data on the ordinary chondrite Allan Hills A77278 (ALHA77278) in two and three dimensions. Mineralogy in the ALHA77278 meteorite appears to be mainly silicates (olivine and pyroxene) with some carbonaceous material in the matrix. Metal phases a...
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ftkirklareliuniv:oai:acikerisim.klu.edu.tr:20.500.11857/2762 2023-05-15T13:51:42+02:00 Investigation of carbon in the Allan Hills A77278 meteorite via 2D and 3D Raman microspectroscopy Yeşiltaş, Mehmet Yeşiltaş, Mehmet 2018 https://hdl.handle.net/20.500.11857/2762 https://doi.org/10.1002/jrs.5457 eng eng Wiley Journal of Raman Spectroscopy Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı 0377-0486 1097-4555 https://doi.org/10.1002/jrs.5457 https://hdl.handle.net/20.500.11857/2762 doi:10.1002/jrs.5457 49 1812 11 1821 info:eu-repo/semantics/closedAccess 2D imaging 3D tomography Allan Hills A77278 hyperspectral microspectroscopy article 2018 ftkirklareliuniv https://doi.org/20.500.11857/2762 https://doi.org/10.1002/jrs.5457 2022-01-08T14:28:44Z This paper reports the first Raman spectral and imaging data on the ordinary chondrite Allan Hills A77278 (ALHA77278) in two and three dimensions. Mineralogy in the ALHA77278 meteorite appears to be mainly silicates (olivine and pyroxene) with some carbonaceous material in the matrix. Metal phases are also present in the studied sample. Two-dimensional Raman spectral distribution maps show the locations of these chemical constituents. Several diamond grains are observed to be buried in olivine and extend down to a similar to 7-mu m depth in the sample, which might be contamination captured during the sample preparation. Raman spectral peak parameters for D and G carbon bands are presented and trends among these parameters are discussed. These spectral parameters, when compared with those of other meteorites reported in the literature, show similarity with unequilibrated ordinary chondrites and primitive carbonaceous chondrites. Estimated peak metamorphic temperature for the parent asteroid is calculated to be around similar to 260 degrees C, which is comparable with lower metamorphic grade ordinary chondrites, indicating that the metamorphic grade of ALHA77278 might be less than 3.7, as it has been officially assigned. Three-dimensional Raman tomographic measurements present visualizations of the identified chemical components in high resolution as well as the epoxy used during the preparation of the sample. Spatial distribution of epoxy is used to avoid these regions during the Raman spectral data extraction from the carbonaceous matter from a depth of the sample, which could otherwise complicate the datasets used to infer the thermal history of the ALHA77278 meteorite. NASA's Solar System Exploration Research Virtual Institute (SSERVI) The author thanks the Antarctic Meteorite Working Group of NASA for providing the meteorite sample. This work is funded by the RIS4E node of NASA's Solar System Exploration Research Virtual Institute (SSERVI). The anonymous reviewers and the editor are also thanked for their insightful comments on this work. WOS:000449999600009 2-s2.0-85052370001 Article in Journal/Newspaper Antarc* Antarctic Kırklareli University Institutional Repository (DSpace@Kırklareli) Antarctic The Antarctic Allan Hills ENVELOPE(159.667,159.667,-76.717,-76.717) |
institution |
Open Polar |
collection |
Kırklareli University Institutional Repository (DSpace@Kırklareli) |
op_collection_id |
ftkirklareliuniv |
language |
English |
topic |
2D imaging 3D tomography Allan Hills A77278 hyperspectral microspectroscopy |
spellingShingle |
2D imaging 3D tomography Allan Hills A77278 hyperspectral microspectroscopy Yeşiltaş, Mehmet Investigation of carbon in the Allan Hills A77278 meteorite via 2D and 3D Raman microspectroscopy |
topic_facet |
2D imaging 3D tomography Allan Hills A77278 hyperspectral microspectroscopy |
description |
This paper reports the first Raman spectral and imaging data on the ordinary chondrite Allan Hills A77278 (ALHA77278) in two and three dimensions. Mineralogy in the ALHA77278 meteorite appears to be mainly silicates (olivine and pyroxene) with some carbonaceous material in the matrix. Metal phases are also present in the studied sample. Two-dimensional Raman spectral distribution maps show the locations of these chemical constituents. Several diamond grains are observed to be buried in olivine and extend down to a similar to 7-mu m depth in the sample, which might be contamination captured during the sample preparation. Raman spectral peak parameters for D and G carbon bands are presented and trends among these parameters are discussed. These spectral parameters, when compared with those of other meteorites reported in the literature, show similarity with unequilibrated ordinary chondrites and primitive carbonaceous chondrites. Estimated peak metamorphic temperature for the parent asteroid is calculated to be around similar to 260 degrees C, which is comparable with lower metamorphic grade ordinary chondrites, indicating that the metamorphic grade of ALHA77278 might be less than 3.7, as it has been officially assigned. Three-dimensional Raman tomographic measurements present visualizations of the identified chemical components in high resolution as well as the epoxy used during the preparation of the sample. Spatial distribution of epoxy is used to avoid these regions during the Raman spectral data extraction from the carbonaceous matter from a depth of the sample, which could otherwise complicate the datasets used to infer the thermal history of the ALHA77278 meteorite. NASA's Solar System Exploration Research Virtual Institute (SSERVI) The author thanks the Antarctic Meteorite Working Group of NASA for providing the meteorite sample. This work is funded by the RIS4E node of NASA's Solar System Exploration Research Virtual Institute (SSERVI). The anonymous reviewers and the editor are also thanked for their insightful comments on this work. WOS:000449999600009 2-s2.0-85052370001 |
author2 |
Yeşiltaş, Mehmet |
format |
Article in Journal/Newspaper |
author |
Yeşiltaş, Mehmet |
author_facet |
Yeşiltaş, Mehmet |
author_sort |
Yeşiltaş, Mehmet |
title |
Investigation of carbon in the Allan Hills A77278 meteorite via 2D and 3D Raman microspectroscopy |
title_short |
Investigation of carbon in the Allan Hills A77278 meteorite via 2D and 3D Raman microspectroscopy |
title_full |
Investigation of carbon in the Allan Hills A77278 meteorite via 2D and 3D Raman microspectroscopy |
title_fullStr |
Investigation of carbon in the Allan Hills A77278 meteorite via 2D and 3D Raman microspectroscopy |
title_full_unstemmed |
Investigation of carbon in the Allan Hills A77278 meteorite via 2D and 3D Raman microspectroscopy |
title_sort |
investigation of carbon in the allan hills a77278 meteorite via 2d and 3d raman microspectroscopy |
publisher |
Wiley |
publishDate |
2018 |
url |
https://hdl.handle.net/20.500.11857/2762 https://doi.org/10.1002/jrs.5457 |
long_lat |
ENVELOPE(159.667,159.667,-76.717,-76.717) |
geographic |
Antarctic The Antarctic Allan Hills |
geographic_facet |
Antarctic The Antarctic Allan Hills |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Journal of Raman Spectroscopy Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı 0377-0486 1097-4555 https://doi.org/10.1002/jrs.5457 https://hdl.handle.net/20.500.11857/2762 doi:10.1002/jrs.5457 49 1812 11 1821 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/20.500.11857/2762 https://doi.org/10.1002/jrs.5457 |
_version_ |
1766255729915723776 |