Structural position of high-pressure felsic to intermediate granulites from NE Moldanubian zone (Bohemian Massif)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F10%3A00000196" target="_blank" >RIV/00025798:_____/10:00000196 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Structural position of high-pressure felsic to intermediate granulites from NE Moldanubian zone (Bohemian Massif)
Original language description
A polyphase tectonic evolution in the area resulted in three deformation phases (D1-D3). Peak metamorphic conditions (860-1000°C and 16 kbar) in granulites are interpreted as reflecting an early stage of the high-grade evolution of the orogenic lower crust. These conditions were followed by exhumation of the orogenic lower crustal block into the middle crustal levels (6-8 kbar). Contrary to this, the study of metamorphic conditions in the surrounding mica-schists (660°C and 8 kbar) shows that these rocks never experienced pressures and temperatures of the orogenic lower crust. Laser ablation ICP-MS U-Pb dating of zircon from the granulite yielded a concordia age of 354 ? 7 Ma, while the conventional ID TIMS and laser ablation ICP-MS dating of xenotimegave identical concordia ages of 336.2 ? 1.2 and 339 ? 3 Ma, respectively.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DB - Geology and mineralogy
OECD FORD branch
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Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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