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@inproceedings{483125, author = {Kotková, Jana and Leichmann, Jaromír and Novák, Milan}, address = {Edinburgh}, booktitle = {18th IMA Abstracts}, keywords = {Upper Visean; conglomerates; granulites; volcanics; high pressure; U-Pb dating; zircon; high temperature; volcanic arc; exhumation; exhumation rate}, language = {eng}, location = {Edinburgh}, pages = {228-228}, publisher = {International Mineralogical Association}, title = {HT rocks from the Visean conglomerates - further evidence for an external heat source in the internal zone of European Variscides.}, year = {2002} }
TY - JOUR ID - 483125 AU - Kotková, Jana - Leichmann, Jaromír - Novák, Milan PY - 2002 TI - HT rocks from the Visean conglomerates - further evidence for an external heat source in the internal zone of European Variscides. PB - International Mineralogical Association CY - Edinburgh KW - Upper Visean KW - conglomerates KW - granulites KW - volcanics KW - high pressure KW - U-Pb dating KW - zircon KW - high temperature KW - volcanic arc KW - exhumation KW - exhumation rate N2 - Granulites found in clasts in Upper Visean conglomerates of the Drahany Uplands feature a strong overprint at medium pressure and high temperature. Geothermobarometry, mineral zoning and reaction textures are consistent with two-stage exhumation, characterized by first isothermal decompression and second near-to-isobaric cooling. Zircon, monazite and rutile U-Pb data are consistent with the two-stage exhumation, two, rapid consistent with the isothermal period, and slower corresponding to the isobaric stage. Possible sources of heat responsible for the medium-pressure younger overprint are discussed. chronological dating of these granulites ER -
KOTKOVÁ, Jana, Jaromír LEICHMANN and Milan NOVÁK. HT rocks from the Visean conglomerates - further evidence for an external heat source in the internal zone of European Variscides. In \textit{18th IMA Abstracts}. Edinburgh: International Mineralogical Association, 2002, p.~228.
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