Thermal metamorphic history of Antarctic CV3 and CO3 chondrites inferred from the first- and second-order Raman peaks of polyaromatic organic carbon
Parent body thermal metamorphism is an important process that alters the structure of organic matter in the parent asteroid of meteorites. Increasing and progressing thermal metamorphism results in carbonization and graphitization of carbonaceous matter in the parent body. Such modifications in the...
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2021
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ftkirklareliuniv:oai:acikerisim.klu.edu.tr:20.500.11857/2893 2023-05-15T13:34:57+02:00 Thermal metamorphic history of Antarctic CV3 and CO3 chondrites inferred from the first- and second-order Raman peaks of polyaromatic organic carbon Yeşiltaş, Mehmet Young, Jordan Glotch, Timothy D. 2021 https://hdl.handle.net/20.500.11857/2893 https://doi.org/10.2138/am-2021-7507 eng eng Mineralogical Soc Amer American Mineralogist Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı 0003-004X 1945-3027 https://doi.org/10.2138/am-2021-7507 https://hdl.handle.net/20.500.11857/2893 doi:10.2138/am-2021-7507 106 506 4 517 info:eu-repo/semantics/closedAccess Carbonaceous chondrites organic matter Raman spectroscopy thermal metamorphism Origins of Our Solar System and Its Organic Compounds article 2021 ftkirklareliuniv https://doi.org/20.500.11857/2893 https://doi.org/10.2138/am-2021-7507 2022-01-08T14:27:58Z Parent body thermal metamorphism is an important process that alters the structure of organic matter in the parent asteroid of meteorites. Increasing and progressing thermal metamorphism results in carbonization and graphitization of carbonaceous matter in the parent body. Such modifications in the carbon structures can be studied by Raman microspectroscopy, thanks to its high sensitivity to structure and bonding within carbonaceous molecules. We have characterized polyaromatic carbonaceous matter in a total of 24 Antarctic CV3 and CO3 chondrites using micro-Raman imaging spectroscopy in an effort to better understand parent body thermal metamorphism and assess its effects on the carbon structures. Raman spectral parameters of the first-order carbon peaks (D and G) were extracted from at least 200 spectra for each meteorite and were compared to deduce relationships that yield information regarding the thermal metamorphism conditions. We also show, for the first time, spectral trends and relations of the second-order carbon peaks (2D and D+G) within the 2500-3200 cm(-1) with thermal metamorphic history. The second-order peaks appear to contain information that is lacking in the first-order peaks. Based on the second-order carbon peak parameters, we tentatively classify four CV3 chondrites into subtypes, and reclassify another. Peak metamorphic temperatures of the investigated meteorites have been estimated based on the width of the D band as well as the calculated Raman spectral curvature. Estimated temperatures appear to correlate well with the assigned petrologic types. We have calculated higher peak metamorphic temperatures for the CV3 chondrites than for the considered CO3 chondrites and further showed that the peak metamorphic temperatures of CV3(oxA) chondrites are higher than those of CV3(oxB), indicating possibly different metamorphic conditions for the two oxidized subtypes. We observe that there is a relatively larger temperature increase going from CO3.2 to CO3.4 (150 degrees C increase) compared to CO3.4-CO3.6 (20 degrees C), which may indicate that the graphitization and structural ordering of carbon reach a critical temperature regime around petrologic type CO3.3. Ministry of Industry and Technology of Turkey; TUBITAK MAM Polar Research Institute This work is funded in part by the RISE2 node of NASA's Solar System Exploration Research Virtual Institute (SSERVI; PI: T.D. Glotch) M.Y. acknowledges the support by the Ministry of Industry and Technology of Turkey as well as TUBITAK MAM Polar Research Institute. The data presented here will be made publicly available at Turkish Spectral Database upon publication (http://tsd.klu.edu.tr). WOS:000646025000002 2-s2.0-85096800175 Article in Journal/Newspaper Antarc* Antarctic Kırklareli University Institutional Repository (DSpace@Kırklareli) Antarctic Carbon Peak ENVELOPE(-122.636,-122.636,56.050,56.050) |
institution |
Open Polar |
collection |
Kırklareli University Institutional Repository (DSpace@Kırklareli) |
op_collection_id |
ftkirklareliuniv |
language |
English |
topic |
Carbonaceous chondrites organic matter Raman spectroscopy thermal metamorphism Origins of Our Solar System and Its Organic Compounds |
spellingShingle |
Carbonaceous chondrites organic matter Raman spectroscopy thermal metamorphism Origins of Our Solar System and Its Organic Compounds Yeşiltaş, Mehmet Young, Jordan Glotch, Timothy D. Thermal metamorphic history of Antarctic CV3 and CO3 chondrites inferred from the first- and second-order Raman peaks of polyaromatic organic carbon |
topic_facet |
Carbonaceous chondrites organic matter Raman spectroscopy thermal metamorphism Origins of Our Solar System and Its Organic Compounds |
description |
Parent body thermal metamorphism is an important process that alters the structure of organic matter in the parent asteroid of meteorites. Increasing and progressing thermal metamorphism results in carbonization and graphitization of carbonaceous matter in the parent body. Such modifications in the carbon structures can be studied by Raman microspectroscopy, thanks to its high sensitivity to structure and bonding within carbonaceous molecules. We have characterized polyaromatic carbonaceous matter in a total of 24 Antarctic CV3 and CO3 chondrites using micro-Raman imaging spectroscopy in an effort to better understand parent body thermal metamorphism and assess its effects on the carbon structures. Raman spectral parameters of the first-order carbon peaks (D and G) were extracted from at least 200 spectra for each meteorite and were compared to deduce relationships that yield information regarding the thermal metamorphism conditions. We also show, for the first time, spectral trends and relations of the second-order carbon peaks (2D and D+G) within the 2500-3200 cm(-1) with thermal metamorphic history. The second-order peaks appear to contain information that is lacking in the first-order peaks. Based on the second-order carbon peak parameters, we tentatively classify four CV3 chondrites into subtypes, and reclassify another. Peak metamorphic temperatures of the investigated meteorites have been estimated based on the width of the D band as well as the calculated Raman spectral curvature. Estimated temperatures appear to correlate well with the assigned petrologic types. We have calculated higher peak metamorphic temperatures for the CV3 chondrites than for the considered CO3 chondrites and further showed that the peak metamorphic temperatures of CV3(oxA) chondrites are higher than those of CV3(oxB), indicating possibly different metamorphic conditions for the two oxidized subtypes. We observe that there is a relatively larger temperature increase going from CO3.2 to CO3.4 (150 degrees C increase) compared to CO3.4-CO3.6 (20 degrees C), which may indicate that the graphitization and structural ordering of carbon reach a critical temperature regime around petrologic type CO3.3. Ministry of Industry and Technology of Turkey; TUBITAK MAM Polar Research Institute This work is funded in part by the RISE2 node of NASA's Solar System Exploration Research Virtual Institute (SSERVI; PI: T.D. Glotch) M.Y. acknowledges the support by the Ministry of Industry and Technology of Turkey as well as TUBITAK MAM Polar Research Institute. The data presented here will be made publicly available at Turkish Spectral Database upon publication (http://tsd.klu.edu.tr). WOS:000646025000002 2-s2.0-85096800175 |
format |
Article in Journal/Newspaper |
author |
Yeşiltaş, Mehmet Young, Jordan Glotch, Timothy D. |
author_facet |
Yeşiltaş, Mehmet Young, Jordan Glotch, Timothy D. |
author_sort |
Yeşiltaş, Mehmet |
title |
Thermal metamorphic history of Antarctic CV3 and CO3 chondrites inferred from the first- and second-order Raman peaks of polyaromatic organic carbon |
title_short |
Thermal metamorphic history of Antarctic CV3 and CO3 chondrites inferred from the first- and second-order Raman peaks of polyaromatic organic carbon |
title_full |
Thermal metamorphic history of Antarctic CV3 and CO3 chondrites inferred from the first- and second-order Raman peaks of polyaromatic organic carbon |
title_fullStr |
Thermal metamorphic history of Antarctic CV3 and CO3 chondrites inferred from the first- and second-order Raman peaks of polyaromatic organic carbon |
title_full_unstemmed |
Thermal metamorphic history of Antarctic CV3 and CO3 chondrites inferred from the first- and second-order Raman peaks of polyaromatic organic carbon |
title_sort |
thermal metamorphic history of antarctic cv3 and co3 chondrites inferred from the first- and second-order raman peaks of polyaromatic organic carbon |
publisher |
Mineralogical Soc Amer |
publishDate |
2021 |
url |
https://hdl.handle.net/20.500.11857/2893 https://doi.org/10.2138/am-2021-7507 |
long_lat |
ENVELOPE(-122.636,-122.636,56.050,56.050) |
geographic |
Antarctic Carbon Peak |
geographic_facet |
Antarctic Carbon Peak |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
American Mineralogist Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı 0003-004X 1945-3027 https://doi.org/10.2138/am-2021-7507 https://hdl.handle.net/20.500.11857/2893 doi:10.2138/am-2021-7507 106 506 4 517 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/20.500.11857/2893 https://doi.org/10.2138/am-2021-7507 |
_version_ |
1766059411208404992 |