Spectroscopic features of ultrahigh-pressure impact glasses of the Kara astrobleme

Abstract The state of substances under ultrahigh pressures and temperatures (UHPHT) now raises a special interest as a matter existing under extreme conditions and as potential new material. Under laboratory conditions only small amounts of micrometer-sized matter are produced at a pressure up to 10...

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Autores principales:	T. G. Shumilova, V. P. Lutoev, S. I. Isaenko, N. S. Kovalchuk, B. A. Makeev, A. Yu. Lysiuk, A. A. Zubov, K. Ernstson
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4b5102e60eb44472b246f206c41cdc6e
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spelling	oai:doaj.org-article:4b5102e60eb44472b246f206c41cdc6e2021-12-02T12:32:48ZSpectroscopic features of ultrahigh-pressure impact glasses of the Kara astrobleme10.1038/s41598-018-25037-z2045-2322https://doaj.org/article/4b5102e60eb44472b246f206c41cdc6e2018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25037-zhttps://doaj.org/toc/2045-2322Abstract The state of substances under ultrahigh pressures and temperatures (UHPHT) now raises a special interest as a matter existing under extreme conditions and as potential new material. Under laboratory conditions only small amounts of micrometer-sized matter are produced at a pressure up to 100 GPa and at room temperature. Simultaneous combination of ultrahigh pressures and temperatures in a lab still requires serious technological effort. Here we describe the composition and structure of the UHPHT vein-like impact glass discovered by us in 2015 on the territory of the Kara astrobleme (Russia) and compare its properties with impact glass from the Ries crater (Germany). A complex of structural and spectroscopic methods presents unusual high pressure marks of structural elements in 8-fold co-ordination that had been described earlier neither in synthetic nor natural glasses. The Kara natural UHPHT glasses being about 70 Ma old have well preserved initial structure, presenting some heterogeneity as a result of partial liquation and crystallization differentiation where an amorphous component is proposed to originate from low level polymerization. Homogeneous parts of the UHPHT glasses can be used to deepened fundamental investigation of a substance under extreme PT conditions and to technological studies for novel material creations.T. G. ShumilovaV. P. LutoevS. I. IsaenkoN. S. KovalchukB. A. MakeevA. Yu. LysiukA. A. ZubovK. ErnstsonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q T. G. Shumilova V. P. Lutoev S. I. Isaenko N. S. Kovalchuk B. A. Makeev A. Yu. Lysiuk A. A. Zubov K. Ernstson Spectroscopic features of ultrahigh-pressure impact glasses of the Kara astrobleme
description	Abstract The state of substances under ultrahigh pressures and temperatures (UHPHT) now raises a special interest as a matter existing under extreme conditions and as potential new material. Under laboratory conditions only small amounts of micrometer-sized matter are produced at a pressure up to 100 GPa and at room temperature. Simultaneous combination of ultrahigh pressures and temperatures in a lab still requires serious technological effort. Here we describe the composition and structure of the UHPHT vein-like impact glass discovered by us in 2015 on the territory of the Kara astrobleme (Russia) and compare its properties with impact glass from the Ries crater (Germany). A complex of structural and spectroscopic methods presents unusual high pressure marks of structural elements in 8-fold co-ordination that had been described earlier neither in synthetic nor natural glasses. The Kara natural UHPHT glasses being about 70 Ma old have well preserved initial structure, presenting some heterogeneity as a result of partial liquation and crystallization differentiation where an amorphous component is proposed to originate from low level polymerization. Homogeneous parts of the UHPHT glasses can be used to deepened fundamental investigation of a substance under extreme PT conditions and to technological studies for novel material creations.
format	article
author	T. G. Shumilova V. P. Lutoev S. I. Isaenko N. S. Kovalchuk B. A. Makeev A. Yu. Lysiuk A. A. Zubov K. Ernstson
author_facet	T. G. Shumilova V. P. Lutoev S. I. Isaenko N. S. Kovalchuk B. A. Makeev A. Yu. Lysiuk A. A. Zubov K. Ernstson
author_sort	T. G. Shumilova
title	Spectroscopic features of ultrahigh-pressure impact glasses of the Kara astrobleme
title_short	Spectroscopic features of ultrahigh-pressure impact glasses of the Kara astrobleme
title_full	Spectroscopic features of ultrahigh-pressure impact glasses of the Kara astrobleme
title_fullStr	Spectroscopic features of ultrahigh-pressure impact glasses of the Kara astrobleme
title_full_unstemmed	Spectroscopic features of ultrahigh-pressure impact glasses of the Kara astrobleme
title_sort	spectroscopic features of ultrahigh-pressure impact glasses of the kara astrobleme
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/4b5102e60eb44472b246f206c41cdc6e
work_keys_str_mv	AT tgshumilova spectroscopicfeaturesofultrahighpressureimpactglassesofthekaraastrobleme AT vplutoev spectroscopicfeaturesofultrahighpressureimpactglassesofthekaraastrobleme AT siisaenko spectroscopicfeaturesofultrahighpressureimpactglassesofthekaraastrobleme AT nskovalchuk spectroscopicfeaturesofultrahighpressureimpactglassesofthekaraastrobleme AT bamakeev spectroscopicfeaturesofultrahighpressureimpactglassesofthekaraastrobleme AT ayulysiuk spectroscopicfeaturesofultrahighpressureimpactglassesofthekaraastrobleme AT aazubov spectroscopicfeaturesofultrahighpressureimpactglassesofthekaraastrobleme AT kernstson spectroscopicfeaturesofultrahighpressureimpactglassesofthekaraastrobleme
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Spectroscopic features of ultrahigh-pressure impact glasses of the Kara astrobleme

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