Standard

Forbidden mineral assemblage coesite-disordered graphite in diamond-bearing kyanite gneisses (Kokchetav Massif). / Shchepetova, Olga V.; Korsakov, Andrey; Mikhailenko, Denis и др.

в: Journal of Raman Spectroscopy, Том 48, № 11, 01.11.2017, стр. 1606-1612.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

Harvard

Shchepetova, OV, Korsakov, A, Mikhailenko, D, Zelenovskiy, P, Shur, V & Ohfuji, H 2017, 'Forbidden mineral assemblage coesite-disordered graphite in diamond-bearing kyanite gneisses (Kokchetav Massif)', Journal of Raman Spectroscopy, Том. 48, № 11, стр. 1606-1612. https://doi.org/10.1002/jrs.5167

APA

Shchepetova, O. V., Korsakov, A., Mikhailenko, D., Zelenovskiy, P., Shur, V., & Ohfuji, H. (2017). Forbidden mineral assemblage coesite-disordered graphite in diamond-bearing kyanite gneisses (Kokchetav Massif). Journal of Raman Spectroscopy, 48(11), 1606-1612. https://doi.org/10.1002/jrs.5167

Vancouver

Shchepetova OV, Korsakov A, Mikhailenko D, Zelenovskiy P, Shur V, Ohfuji H. Forbidden mineral assemblage coesite-disordered graphite in diamond-bearing kyanite gneisses (Kokchetav Massif). Journal of Raman Spectroscopy. 2017 нояб. 1;48(11):1606-1612. doi: 10.1002/jrs.5167

Author

Shchepetova, Olga V. ; Korsakov, Andrey ; Mikhailenko, Denis и др. / Forbidden mineral assemblage coesite-disordered graphite in diamond-bearing kyanite gneisses (Kokchetav Massif). в: Journal of Raman Spectroscopy. 2017 ; Том 48, № 11. стр. 1606-1612.

BibTeX

@article{28b5797968d9471da851164b2e142730,
title = "Forbidden mineral assemblage coesite-disordered graphite in diamond-bearing kyanite gneisses (Kokchetav Massif)",
abstract = "Confocal 2D and 3D Raman imaging was applied to SiO2 inclusions in kyanite porphyroblasts from diamond-bearing kyanite gneisses of the Kokchetav Massif (Northern Kazakhstan). The study reveals a mineral assemblage of coesite-disordered graphite which is forbidden in ultrahigh pressure-high temperature (UHP-HT) metamorphic complexes. Disordered graphite in coesite inclusions is optically undetectable and has been identified exclusively by Raman spectroscopy. Raman imaging of the forbidden coesite-disordered graphite assemblage fails to detect bands assigned to fluid components (e.g. CO2, N2, CH4, H2Oliq), but the Raman spectra of fluid inclusions in kyanite, garnet and quartz demonstrate the presence of CO2, N2, CH4, H2Oliq and disordered graphite. The disordered graphite most likely formed by precipitation from a C―O―H fluid during the retrograde stage. The fluid was entrapped by kyanite with coesite inclusions near the peak metamorphic conditions. The lack of disordered graphite around diamond crystals in our samples does not support the generally accepted origin of disordered graphite in ultra high pressure metamorphic rocks by partial diamond graphitization during exhumation.",
keywords = "coesite, diamond, disordered graphite, Raman imaging, UHP-HT metamorphism, RAMAN-SPECTROSCOPY, O-H FLUIDS, NORTHERN-KAZAKSTAN, CARBONACEOUS-MATERIAL, CONTINENTAL-CRUST, HIGH-TEMPERATURE CONDITIONS, PRESSURE METAMORPHIC ROCKS, SIBERIAN CRATON, SPECTRA, MANTLE ROCKS",
author = "Shchepetova, {Olga V.} and Andrey Korsakov and Denis Mikhailenko and Pavel Zelenovskiy and Vladimir Shur and Hiroaki Ohfuji",
note = "Publisher Copyright: Copyright {\textcopyright} 2017 John Wiley & Sons, Ltd.",
year = "2017",
month = nov,
day = "1",
doi = "10.1002/jrs.5167",
language = "English",
volume = "48",
pages = "1606--1612",
journal = "Journal of Raman Spectroscopy",
issn = "0377-0486",
publisher = "John Wiley and Sons Ltd",
number = "11",

}

RIS

TY - JOUR

T1 - Forbidden mineral assemblage coesite-disordered graphite in diamond-bearing kyanite gneisses (Kokchetav Massif)

AU - Shchepetova, Olga V.

AU - Korsakov, Andrey

AU - Mikhailenko, Denis

AU - Zelenovskiy, Pavel

AU - Shur, Vladimir

AU - Ohfuji, Hiroaki

N1 - Publisher Copyright: Copyright © 2017 John Wiley & Sons, Ltd.

PY - 2017/11/1

Y1 - 2017/11/1

N2 - Confocal 2D and 3D Raman imaging was applied to SiO2 inclusions in kyanite porphyroblasts from diamond-bearing kyanite gneisses of the Kokchetav Massif (Northern Kazakhstan). The study reveals a mineral assemblage of coesite-disordered graphite which is forbidden in ultrahigh pressure-high temperature (UHP-HT) metamorphic complexes. Disordered graphite in coesite inclusions is optically undetectable and has been identified exclusively by Raman spectroscopy. Raman imaging of the forbidden coesite-disordered graphite assemblage fails to detect bands assigned to fluid components (e.g. CO2, N2, CH4, H2Oliq), but the Raman spectra of fluid inclusions in kyanite, garnet and quartz demonstrate the presence of CO2, N2, CH4, H2Oliq and disordered graphite. The disordered graphite most likely formed by precipitation from a C―O―H fluid during the retrograde stage. The fluid was entrapped by kyanite with coesite inclusions near the peak metamorphic conditions. The lack of disordered graphite around diamond crystals in our samples does not support the generally accepted origin of disordered graphite in ultra high pressure metamorphic rocks by partial diamond graphitization during exhumation.

AB - Confocal 2D and 3D Raman imaging was applied to SiO2 inclusions in kyanite porphyroblasts from diamond-bearing kyanite gneisses of the Kokchetav Massif (Northern Kazakhstan). The study reveals a mineral assemblage of coesite-disordered graphite which is forbidden in ultrahigh pressure-high temperature (UHP-HT) metamorphic complexes. Disordered graphite in coesite inclusions is optically undetectable and has been identified exclusively by Raman spectroscopy. Raman imaging of the forbidden coesite-disordered graphite assemblage fails to detect bands assigned to fluid components (e.g. CO2, N2, CH4, H2Oliq), but the Raman spectra of fluid inclusions in kyanite, garnet and quartz demonstrate the presence of CO2, N2, CH4, H2Oliq and disordered graphite. The disordered graphite most likely formed by precipitation from a C―O―H fluid during the retrograde stage. The fluid was entrapped by kyanite with coesite inclusions near the peak metamorphic conditions. The lack of disordered graphite around diamond crystals in our samples does not support the generally accepted origin of disordered graphite in ultra high pressure metamorphic rocks by partial diamond graphitization during exhumation.

KW - coesite

KW - diamond

KW - disordered graphite

KW - Raman imaging

KW - UHP-HT metamorphism

KW - RAMAN-SPECTROSCOPY

KW - O-H FLUIDS

KW - NORTHERN-KAZAKSTAN

KW - CARBONACEOUS-MATERIAL

KW - CONTINENTAL-CRUST

KW - HIGH-TEMPERATURE CONDITIONS

KW - PRESSURE METAMORPHIC ROCKS

KW - SIBERIAN CRATON

KW - SPECTRA

KW - MANTLE ROCKS

UR - http://www.scopus.com/inward/record.url?scp=85019993776&partnerID=8YFLogxK

U2 - 10.1002/jrs.5167

DO - 10.1002/jrs.5167

M3 - Article

AN - SCOPUS:85019993776

VL - 48

SP - 1606

EP - 1612

JO - Journal of Raman Spectroscopy

JF - Journal of Raman Spectroscopy

SN - 0377-0486

IS - 11

ER -

ID: 9952773