Internal diamond morphology: Raman imaging of metamorphic diamonds / Korsakov Andrey V.,Toporski Jan,Dieing Thomas,Yang Jianyong,Zelenovskiy Pavel S. // JOURNAL OF RAMAN SPECTROSCOPY. - 2015. - V. 46, l. 10, SI. - P. 880-888.

ISSN/EISSN:

0377-0486 / 1097-4555

Type:

Article; Proceedings Paper

Abstract:

Confocal 2-D and 3-D Raman imaging of the Kokchetav metamorphic diamonds from different rock types reveals that these diamonds have a rather complex internal morphology. The diamond shows a strong change in the position of the diamond Raman line as well as the width of this line, which could be found both in the XY and in the YZ scan. These features indicate variations in the crystalline quality of the diamond. The broadest lines are located in the center of the octahedral diamond inclusion whereas the material close to the diamond-garnet interface shows smaller line widths. These features were also found for thermochemically extracted diamond crystals, which are not armored by host mineral, and in situ for inter- and intragranular diamond. Furthermore, host-garnet display no evidence for broadening or up-shift of main Raman bands, indicating very low (below detection limit) residual strain. Thus the broadening and upshift of main diamond band do not relate to residual strain in inclusion-host systems. A comparison of Raman imaging results with cathodoluminescence images reveals that the distribution of defects, which cause the cathodoluminescence of diamond crystals, can be traced by Raman imaging. The 2-D and 3-D Raman imaging is a very powerful tool for study of internal morphology and growth pattern of metamorphic diamond, even it is a small crystal less than 10 mu m in size. The growth pattern for octahedral diamond crystals from garnet-clinozoisite gneisses were obtained for the first time by Raman imaging. Copyright (c) 2015 John Wiley \& Sons, Ltd.

Author keywords:

Raman imaging; UHP metamorphism; diamond; Kokchetav ULTRAHIGH-PRESSURE GNEISS; CALC-SILICATE ROCKS; KOKCHETAV-MASSIF; NORTHERN KAZAKSTAN; CATHODOLUMINESCENCE SPECTRA; SAXONIAN ERZGEBIRGE; DOLOMITE MARBLE; 2-STAGE GROWTH; KUMDY-KOL; INCLUSIONS

DOI:

10.1002/jrs.4738

Web of Science ID:

ISI:000363090200009

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT
Note	11th International GeoRaman Conference, St Louis, MI, JUN 15-19, 2014
Publisher	WILEY-BLACKWELL
Address	111 RIVER ST, HOBOKEN 07030-5774, NJ USA
Language	English
EISSN	1097-4555
Keywords-Plus	ULTRAHIGH-PRESSURE GNEISS; CALC-SILICATE ROCKS; KOKCHETAV-MASSIF; NORTHERN KAZAKSTAN; CATHODOLUMINESCENCE SPECTRA; SAXONIAN ERZGEBIRGE; DOLOMITE MARBLE; 2-STAGE GROWTH; KUMDY-KOL; INCLUSIONS
Research-Areas	Spectroscopy
Web-of-Science-Categories	Spectroscopy
Author-Email	akorsakov74@gmail.com
ResearcherID-Numbers	Korsakov, Andrey/O-2390-2013 Zelenovskiy, Pavel/L-7480-2016
ORCID-Numbers	Korsakov, Andrey/0000-0002-4922-7658 Zelenovskiy, Pavel/0000-0003-3895-4785
Funding-Acknowledgement	RFBR {[}13-05-00367-a]; Ministry of Education and Science of the Russian Federation {[}RFMEFI59414X0011]; {[}MD-1260.2013.5]
Funding-Text	The authors thank Prof. Dr. Rudy Swennen and Dr. Anneleen Foubert (Katholieke Universiteit Leuven, Belgium) for their help in the CL analyses. Reviews by R. Shimizu and an anonymous referee resulted in significant improvement of the manuscript. This study was supported by grants of RFBR (13-05-00367-a) and MD-1260.2013.5. Authors thank Ural Center for Shared Use `Modern nanotechnology' UrFU supported by the Ministry of Education and Science of the Russian Federation (UID RFMEFI59414X0011).
Number-of-Cited-References	77
Usage-Count-Since-2013	22
Journal-ISO	J. Raman Spectrosc.
Doc-Delivery-Number	CT8TU