Rapid exhumation and cooling of the thickened crust: evidence from the granulite clasts within the Upper Visean Conglomerates (Rhenohercynikum).

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Authors	KOTKOVÁ Jana GERDES Axel PARRISH Randall R.
Year of publication	2003
Type	Article in Proceedings
Conference	Geology without frontiers: magmatic and metamorphic evolution of Central European Variscides. Excursion Guide.
MU Faculty or unit	Faculty of Science
Citation
Field	Geology and mineralogy
Keywords	Visean conglomerate; granulite; granite; cordierite; PT path; geochronology; exhumation rate
Description	Visean conglomerates of the Drahany Uplands contain clasts of granulites, granites and durbachites. Detailed petrological study of granulites enabled to reconstruct their P-T path. U-Pb geochronological dating of the rocks yielded late Variscan ages. The exhumation of the rocks from lower crust to the surface was very fast.
Related projects:	Partial melting of rocks in the root zone of the Variscan orogenic belt (Moldanubian Zone, Bohemian Massif) Geological Processes and their Environmental Impact - Contact of the Variscides and Alpides