About: Metabasic rocks in the Varied Group of the Moldanubian Zone, southern Bohemia ? their petrology, geochemical character and possible petrogenesis

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About: Metabasic rocks in the Varied Group of the Moldanubian Zone, southern Bohemia ? their petrology, geochemical character and possible petrogenesis Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Metabasic rocks are important constituent of the Chýnov and Český Krumlov units in the Varied Group (Moldanubian Zone, S Bohemia). The dataset is dominated by EMORB-like tholeiite basalts spanning from Early Palaeozoic melting of a depleted mantle source (Eps500 = +8.6 to +9.4; TDM = 0.43-0.50 Ga). Composition of the remaining samples reflects upper crustal contamination (Eps500 = +3.1 to +1.3, progressive enrichment in Th, as well as depletion in Nb, P and Ti). A much smaller group of amphibolites is characterised by steep REE patterns and high HFSE contents (Nb, Ta, Zr and P). It is of an OIB affinity, with parental alkali basalt generated by a low degree of partial melting of a deep, garnet-bearing asthenospheric mantle source (Eps500 = +4.5 to +6.1). Overall, the likely tectonic setting was attenuated lithosphere, subjected to an Early Palaeozoic extension, leading eventually to fragmentation of the northern Gondwana margin. The minor OIB component was probably added by a rising mantle plume. Metabasic rocks are important constituent of the Chýnov and Český Krumlov units in the Varied Group (Moldanubian Zone, S Bohemia). The dataset is dominated by EMORB-like tholeiite basalts spanning from Early Palaeozoic melting of a depleted mantle source (Eps500 = +8.6 to +9.4; TDM = 0.43-0.50 Ga). Composition of the remaining samples reflects upper crustal contamination (Eps500 = +3.1 to +1.3, progressive enrichment in Th, as well as depletion in Nb, P and Ti). A much smaller group of amphibolites is characterised by steep REE patterns and high HFSE contents (Nb, Ta, Zr and P). It is of an OIB affinity, with parental alkali basalt generated by a low degree of partial melting of a deep, garnet-bearing asthenospheric mantle source (Eps500 = +4.5 to +6.1). Overall, the likely tectonic setting was attenuated lithosphere, subjected to an Early Palaeozoic extension, leading eventually to fragmentation of the northern Gondwana margin. The minor OIB component was probably added by a rising mantle plume. (en)
Title	Metabasic rocks in the Varied Group of the Moldanubian Zone, southern Bohemia ? their petrology, geochemical character and possible petrogenesis Metabasic rocks in the Varied Group of the Moldanubian Zone, southern Bohemia ? their petrology, geochemical character and possible petrogenesis (en)
skos:prefLabel	Metabasic rocks in the Varied Group of the Moldanubian Zone, southern Bohemia ? their petrology, geochemical character and possible petrogenesis Metabasic rocks in the Varied Group of the Moldanubian Zone, southern Bohemia ? their petrology, geochemical character and possible petrogenesis (en)
skos:notation	RIV/00216208:11310/08:10000551!RIV10-MZP-11310___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MZP0002579801)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Janoušek, Vojtěch
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	378633
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/08:10000551
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	amphibolites; petrology; whole-rock geochemistry; Nd isotopes; Moldanubian Zone; Bohemian Massif (en)
http://linked.open.../riv/klicoveSlovo	Bohemian Massif Moldanubian Zone petrology amphibolites Nd isotopes whole-rock geochemistry
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[D5E9F221B7C1]
http://linked.open...i/riv/nazevZdroje	Journal of Geosciences
http://linked.open...in/vavai/riv/obor	DD
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	53
http://linked.open...iv/tvurceVysledku	Erban, Vojtěch Janoušek, Vojtěch Vrána, Stanislav Drábek, Milan Vokurka, Karel
http://linked.open...n/vavai/riv/zamer	Geosciences for the Society of the 21st Century: from regional research to geological hazards and global changes.
issn	1802-6222
number of pages	34 (xsd:int)
http://localhost/t...ganizacniJednotka	11310

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