Variscan polyphase tectonothermal record in the West Sudetes (Bohemian Massif) - deduced from Ar-Ar ages

0145101 - GLU-S 20004052 RIV ES eng C - Konferenční příspěvek (zahraniční konf.)
Marheine, D. - Kachlík, V. - Patočka, František - Maluski, H. - Zelazniewicz, A.
Variscan polyphase tectonothermal record in the West Sudetes (Bohemian Massif) - deduced from Ar-Ar ages.
15th International Conference on Basement Tectonics, Galicia 2000. La Coruňa: International Basement Tectonics Association, 2000, s. 254-257.
[International Conference on Basement Tectonics /15./, Galicia 2000. La Coruňa (ES), 04.07.2000-08.07.2000]
Grant CEP: GA AV ČR BARRANDE97008; GA AV ČR KSK1012601
Výzkumný záměr: CEZ:AV0Z3013912
Klíčová slova: HP-LT-; HT- metamorphic rocks * tectonothermal events * Ar-Ar geochronology
Kód oboru RIV: DB - Geologie a mineralogie

The distribution of Ar-Ar ages in the West Sudetes reflects the complexity of the Variscan polyphase deformation and metamorphism ranging from very low-grade to eclogite facies with peaks around 360 Ma (HP-LT-; HP-HT-events), c. 340 Ma (HT-event) and c. 325 Ma (shearing and thrusting). The final juxtaposition of the diversified tectonometamorphic units of the West Sudetes took place in the Late Carboniferous. A comparison of geochronological data obtained from subduction related HP-rocks of the Armorican terrane assemblage reveals the set of broadly contemporaneous latest Devonian HP-events in the West Sudetes, Armorican Massif and NW Iberian Massif.
Trvalý link: http://hdl.handle.net/11104/0042715