Počet záznamů: 1
Origin of felsic granulite microstructure by heterogeneous decomposition of alkali feldspar and extreme weakening of orogenic lower crust during the Variscan orogeny
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SYSNO ASEP 0357499 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Origin of felsic granulite microstructure by heterogeneous decomposition of alkali feldspar and extreme weakening of orogenic lower crust during the Variscan orogeny Tvůrce(i) Franěk, J. (CZ)
Schulmann, K. (FR)
Lexa, O. (CZ)
Ulrich, Stanislav (GFU-E)
Štípská, P. (FR)
Haloda, J. (CZ)
Týcová, P. (CZ)Zdroj.dok. Journal of Metamorphic Geology. - : Wiley - ISSN 0263-4929
Roč. 29, č. 1 (2011), s. 103-130Poč.str. 28 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova felsic granulites ; Moldanubian domain ; quantitative microstructural analysis ; quartz and feldspar rheology ; Variscan belt Vědní obor RIV DB - Geologie a mineralogie CEP GA205/09/0539 GA ČR - Grantová agentura ČR CEZ AV0Z30120515 - GFU-E (2005-2011) UT WOS 000285881000006 DOI 10.1111/j.1525-1314.2010.00911.x Anotace This study answers the question of origin and evolution of a granulitic microstructure typically developed in felsic granulites of the European Variscan belt. It shows that the precursor of the Variscan felsic granulites was a high-pressure alkali feldspar-rich coarse-grained layered orthogneiss. Its S1 subhorizontal layering is defined by the alignment of alkali feldspar porphyroclasts alternating with monomineralic bands of quartz and bands rich in plagioclase and garnet. The alkali feldspar porphyroclasts contain inclusions of quartz, garnet, kyanite, biotite and rutile, reflecting peak P–T conditions of 1.6–1.8 GPa and 850 °C during S1 formation. Pracoviště Geofyzikální ústav Kontakt Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Rok sběru 2011
Počet záznamů: 1