caa a22 4500 445839341 CHVBK 20180317145339.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s00015-011-0087-8 doi (NATIONALLICENCE)springer-10.1007/s00015-011-0087-8 Eoalpine tectonics of the Eastern Alps: implications from the evolution of monometamorphic Austroalpine units (Schneeberg and Radenthein Complex) [Elektronische Daten] [Kurt Krenn, Walter Kurz, Harald Fritz, Georg Hoinkes] Monometamorphic metasediments of Paleozoic or Mesozoic age constituting Schneeberg and Radenthein Complex experienced coherent deformation and metamorphism during Late Cretaceous times. Both complexes are part of the Eoalpine high-pressure wedge that formed an intracontinental suture and occur between the polymetamorphosed Ötztal-Bundschuh nappe system on top and the Texel-Millstatt Complex below. During Eoalpine orogeny Schneeberg and Radenthein Complexes were south-dipping and they experienced a common tectonometamorphic history from ca. 115Ma onwards until unroofing of the Tauern Window in Miocene times. This evolution is subdivided into four distinct tectonometamorphic phases. Deformation stage D1 is characterized by WNW-directed shearing at high temperature conditions (550-600°C) and related to the initial exhumation of the high-pressure wedge. D2 and D3 are largely coaxial and evolved during high- to medium-temperature conditions (ca. 450 to ≥550°C). These stages are related to advanced exhumation and associated with large-scale folding of the high-pressure wedge including the Ötztal-Bundschuh nappe system above and the Texel-Millstatt Complex below. For the area west of the Tauern Window, F2/F3 fold interference results in the formation of large-scale sheath-folds in the frontal part of the nappe stack (formerly called "Schlingentektonik” by previous authors). Earlier thrusts were reactivated during Late Cretaceous normal faulting at the base of the Ötztal-Bundschuh nappe system and its cover. Deformation stage D4 is of Oligo-Miocene age and accounted for tilting of individual basement blocks along large-scale strike-slip shear zones. This tilting phase resulted from indentation of the Southern Alps accompanied by the formation of the Tauern Window. Swiss Geological Society, 2011 Eastern Alps nationallicence Eoalpine tectonics nationallicence Eoalpine metamorphism nationallicence High-pressure wedge nationallicence Indenter tectonics nationallicence Krenn Kurt Department of Mineralogy and Petrology, Institute of Earth Sciences, Karl-Franzens-University of Graz, Universitätsplatz 2, 8010, Graz, Austria aut Kurz Walter Department of Geology and Paleontology, Institute of Earth Sciences, Karl-Franzens-University of Graz, Heinrichstrasse 26, 8010, Graz, Austria aut Fritz Harald Department of Geology and Paleontology, Institute of Earth Sciences, Karl-Franzens-University of Graz, Heinrichstrasse 26, 8010, Graz, Austria aut Hoinkes Georg Department of Mineralogy and Petrology, Institute of Earth Sciences, Karl-Franzens-University of Graz, Universitätsplatz 2, 8010, Graz, Austria aut Swiss Journal of Geosciences SP Birkhäuser Verlag Basel 104/3(2011-12-01), 471-491 1661-8726 104:3<471 2011 104 15 https://doi.org/10.1007/s00015-011-0087-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00015-011-0087-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Krenn Kurt Department of Mineralogy and Petrology, Institute of Earth Sciences, Karl-Franzens-University of Graz, Universitätsplatz 2, 8010, Graz, Austria aut NATIONALLICENCE 700 1- Kurz Walter Department of Geology and Paleontology, Institute of Earth Sciences, Karl-Franzens-University of Graz, Heinrichstrasse 26, 8010, Graz, Austria aut NATIONALLICENCE 700 1- Fritz Harald Department of Geology and Paleontology, Institute of Earth Sciences, Karl-Franzens-University of Graz, Heinrichstrasse 26, 8010, Graz, Austria aut NATIONALLICENCE 700 1- Hoinkes Georg Department of Mineralogy and Petrology, Institute of Earth Sciences, Karl-Franzens-University of Graz, Universitätsplatz 2, 8010, Graz, Austria aut NATIONALLICENCE 773 0- Swiss Journal of Geosciences SP Birkhäuser Verlag Basel 104/3(2011-12-01), 471-491 1661-8726 104:3<471 2011 104 15 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer