Importance of crustal relamination in origin of the orogenic mantle peridotite–high-pressure granulite association: example from the Náměšť Granulite Massif (Bohemian Massif, Czech Republic)

0444174 - GFÚ 2016 RIV GB eng J - Journal Article
Kusbach, Vladimír - Janoušek, V. - Hasalová, P. - Schulmann, K. - Fanning, C. M. - Erban, V. - Ulrich, S.
Importance of crustal relamination in origin of the orogenic mantle peridotite–high-pressure granulite association: example from the Náměšť Granulite Massif (Bohemian Massif, Czech Republic).
Journal of the Geological Society. Roč. 172, č. 4 (2015), s. 479-490. ISSN 0016-7649. E-ISSN 2041-479X
R&D Projects: GA ČR GA205/09/0539
Institutional support: RVO:67985530
Keywords : HP-HT metamorphism * European Variscides * continental crust
Subject RIV: DB - Geology ; Mineralogy
Impact factor: 2.473, year: 2015

A characteristic association of crustal and mantle rocks is commonly used to decipher processes at the mantle-crust interface of HP-UHP collisional orogenic systems. Also, in the Variscan orogenic root of the Bohemian Massif (the Moldanubian Zone), high-pressure felsic granulites are often accompanied by spinel or garnet peridotites. This association was investigated using petrography, zircon geochronology and whole-rock geochemical data from the Namest Granulite Massif. The geochemical signature of the granulite is the same as for other Moldanubian occurrences, suggesting nearly isochemically metamorphosed felsic metaigneous rocks of Saxothuringian provenance.
Permanent Link: http://hdl.handle.net/11104/0246757