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Two Contrasting Fabric Patterns of Olivine Observed in Garnet and Spinel Peridotite from a Mantle-derived Ultramafic Mass Enclosed in Felsic Granulite, the Moldanubian Zone, Czech Republic

SYSNO ASEP	0337938
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Two Contrasting Fabric Patterns of Olivine Observed in Garnet and Spinel Peridotite from a Mantle-derived Ultramafic Mass Enclosed in Felsic Granulite, the Moldanubian Zone, Czech Republic
Author(s)	Kamei, A. (JP) Obata, M. (JP) Michibayashi, K. (JP) Hirajima, T. (JP) Svojtka, Martin (GLU-S)_{SAI, RID, ORCID}
Source Title	Journal of Petrology. - : Oxford University Press - ISSN 0022-3530 Roč. 51, 1/2 (2010), s. 101-123
Number of pages	23 s.
Publication form	WWW - WWW
Language	eng - English
Country	GB - United Kingdom
Keywords	garnet peridotite ; spinel peridotite ; olivine fabrics ; Bohemian Massif
Subject RIV	DB - Geology ; Mineralogy
CEZ	AV0Z30130516 - GLU-S (2005-2011)
UT WOS	000273893000008
EID SCOPUS	77749291852
DOI	10.1093/petrology/egp092
Annotation	The Mohelno peridotite is a medium-sized ultramafic body (2 km x 4 km in size) enclosed in the Gfoehl granulites in the eastern part of the Bohemian Massif. To decipher the origin and history of this mantle-derived peridotite, we determined the mineral chemistry by electron microprobe analysis and olivine fabric patterns by the electron backscattered diffraction method for each rock type.We found two distinct types of olivine fabric (crystal-preferred orientation; CPO) in the peridotite, which can be correlated with the mineralogy and thermal history of each. Starting from a high-temperature (>1200°C) spinel peridotite, during exhumation and cooling in contact with surrounding granulites, the marginal part of the body was transformed to garnet peridotite, whereas the interior remained in the spinel-peridotite facies because cooling was slower inside the body.
Workplace	Institute of Geology
Contact	Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272
Year of Publishing	2010

Number of the records: 1