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Constraints on the origin of gabbroic rocks from the Moldanubian-Moravian units boundary (Bohemian Massif, Czech Republic and Austria)

SYSNO ASEP	0346334
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Constraints on the origin of gabbroic rocks from the Moldanubian-Moravian units boundary (Bohemian Massif, Czech Republic and Austria)
Author(s)	Ulrych, Jaromír (GLU-S)_{RID, SAI} Ackerman, Lukáš (GLU-S)_{RID, SAI, ORCID} Kachlík, V. (CZ) Hegner, E. (DE) Balogh, K. (HU) Langrová, Anna (GLU-S)_{RID, SAI} Luna, J. (CZ) Fediuk, F. (CZ) Lang, M. (CZ) Filip, Jiří (GLU-S)_{RID, SAI}
Source Title	Geologica Carpathica. - : Slovenská akadémia vied - ISSN 1335-0552 Roč. 61, č. 3 (2010), s. 175-191
Number of pages	17 s.
Publication form	WWW - WWW
Language	eng - English
Country	SK - Slovakia
Keywords	gabbroic rocks ; geochemistry ; Sr-Nd isotopes ; K-Ar ages ; Moravian Unit ; Moldanubian Unit ; Bohemian Massif
Subject RIV	DD - Geochemistry
R&D Projects	IAA3013403 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	IAA300130902 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z30130516 - GLU-S (2005-2011)
UT WOS	000280422700001
EID SCOPUS	77954296685
DOI	10.2478/v10096-010-0009-0
Annotation	Gabbroic bodies from the Moldanubian Monotonous Group (Maříř) and the Moravian Vratěnín Unit, often showing retrogressive recrystallization at their margins in the amphibolite-facies grade, have norite, gabbronorite, gabbro and hornblendite compositions. Gabbros with preserved coronitic textures are limited to the Vratěnín Unit. The estimated equilibration temperatures derived from plagioclase–amphibole pairs and orthopyroxene Ca contents calculated for pressures 5–10 kbar overlap are 680–850 °C. Gabbroic rocks from Maříž should represent an underplated, partly layered cumulate body of continental tholeiite composition, strongly influenced by crustal contamination. In contrast, gabbroic bodies from the Vratěnín Unit, having a close spatial relationship to the surrounding garnet amphibolites, were emplaced into a lithologically variable passive margin sequence probably during the Cadomian extension.
Workplace	Institute of Geology
Contact	Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272
Year of Publishing	2011

Number of the records: 1