Zircon (re)crystallization during short-lived, high-P granulite facies metamorphism (Eger Complex, NW Bohemian Massif)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F14%3A00432956" target="_blank" >RIV/67985831:_____/14:00432956 - isvavai.cz</a>
Alternative codes found
RIV/00025798:_____/14:00000066 RIV/00025798:_____/14:00000360
Result on the web
<a href="http://dx.doi.org/10.1111/jmg.12098" target="_blank" >http://dx.doi.org/10.1111/jmg.12098</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/jmg.12098" target="_blank" >10.1111/jmg.12098</a>

Result language
angličtina
Original language name
Zircon (re)crystallization during short-lived, high-P granulite facies metamorphism (Eger Complex, NW Bohemian Massif)
Original language description
The Eger Complex in the northwestern Bohemian Massif consists mainly of amphibolite facies granitic gneisses containing a subordinate volume of felsic granulites. Microstructural changes and modelling of metamorphic conditions for both rock types suggesta short-lived static heating from 760 to 850 °C at a constant pressure of 16 kbar, which led to the partial granulitization of the granitoid rocks. Detailed study of the protolith zircon modifications and modelling of the Zr re-distribution during the transition from amphibolite to granulite facies suggests that the development of c. 340 Ma old zircon rims in the granulite facies sample is the result of recrystallization of older (c. 475 Ma) protolith zircon. This study suggests that the partial granulitization is a result of a short exposure of the Eger Complex metagranitoids to a temperature of 850 °C at the base of an arc/fore-arc domain and their subsequent rapid exhumation during the Lower Carboniferous collision along the western
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
<a href="/en/project/GAP210%2F11%2F2358" target="_blank" >GAP210/11/2358: Granulitization of the Moldanubian lower crust: geochemical constraints on protoliths and metamorphic changes in course of the Variscan orogenic cycle</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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