About: Hyperpotassic granulites from the Blanský les Massif (Moldanubian Zone, Bohemian Massif) revisited

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In the Blanský les granulite Massif built mainly by felsic calc-alkaline HP?HT Grt + Ky granulite, occur rare small bodies of hyperpotassic (K2O < 7 %, up to c. 14 %, K2O/Na2O = 3.1?9.2 wt. %) granulite with Grt or Px. Characteristic are high concentrations of Cs, Rb, Ba and U at variable enrichments in Zr and Hf; contents some HFSE (Ti, Nb and Ta) are extremely low. The Sr?Nd isotopic ratios document the derivation from mature crustal sources (Eps337 -5.5; 87Sr/86Sr337 = 0.7109-0.7279). Ap saturation temperatures are high, close to the previously estimated conditions of (re)crystallization for both calc-alkaline and hyperpotassic granulites. The hyperpotassic granulites are interpreted as Viséan igneous rocks. The parental magma could have originated by low degrees of HP?HT, non-eutectic partial melting. The low-scale melt was most likely expelled close to the HP?HT metamorphic peak or at early stages of decompression from common Moldanubian calc-alkaline granulites. In the Blanský les granulite Massif built mainly by felsic calc-alkaline HP?HT Grt + Ky granulite, occur rare small bodies of hyperpotassic (K2O < 7 %, up to c. 14 %, K2O/Na2O = 3.1?9.2 wt. %) granulite with Grt or Px. Characteristic are high concentrations of Cs, Rb, Ba and U at variable enrichments in Zr and Hf; contents some HFSE (Ti, Nb and Ta) are extremely low. The Sr?Nd isotopic ratios document the derivation from mature crustal sources (Eps337 -5.5; 87Sr/86Sr337 = 0.7109-0.7279). Ap saturation temperatures are high, close to the previously estimated conditions of (re)crystallization for both calc-alkaline and hyperpotassic granulites. The hyperpotassic granulites are interpreted as Viséan igneous rocks. The parental magma could have originated by low degrees of HP?HT, non-eutectic partial melting. The low-scale melt was most likely expelled close to the HP?HT metamorphic peak or at early stages of decompression from common Moldanubian calc-alkaline granulites. (en)
Title	Hyperpotassic granulites from the Blanský les Massif (Moldanubian Zone, Bohemian Massif) revisited Hyperpotassic granulites from the Blanský les Massif (Moldanubian Zone, Bohemian Massif) revisited (en)
skos:prefLabel	Hyperpotassic granulites from the Blanský les Massif (Moldanubian Zone, Bohemian Massif) revisited Hyperpotassic granulites from the Blanský les Massif (Moldanubian Zone, Bohemian Massif) revisited (en)
skos:notation	RIV/00216208:11310/07:10001176!RIV10-MZP-11310___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GA205/03/0040), S, Z(MZP0002579801)
http://linked.open...iv/cisloPeriodika	1-2
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	425181
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/07:10001176
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	granulites; alkali feldspar syenites; high-pressure melting; geochemistry; Moldanubian Zone; Bohemian Massif (en)
http://linked.open.../riv/klicoveSlovo	alkali feldspar syenites high-pressure melting geochemistry granulites Bohemian Massif Moldanubian Zone
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[2621E8B4F0B6]
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...vavai/riv/projekt	Partial melting of rocks in the root zone of the Variscan orogenic belt (Moldanubian zone, Bohemian Massif)
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	52
http://linked.open...iv/tvurceVysledku	Erban, Vojtěch Janoušek, Vojtěch Míková, Jitka Finger, Fritz Krenn, Erwin
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	40 (xsd:int)
http://localhost/t...ganizacniJednotka	11310
is http://linked.open...avai/riv/vysledek of	Hyperpotassic granulites from the Blanský les Massif (Moldanubian Zone, Bohemian Massif) revisited Hyperpotassic granulites from the Blanský les Massif (Moldanubian Zone, Bohemian Massif) revisited Hyperpotassic granulites from the Blanský les Massif (Moldanubian Zone, Bohemian Massif) revisited

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