caa a22 4500 477064361 CHVBK 20180405111408.0 cr unu---uuuuu 170330e19961201xx s 000 0 eng 10.1007/BF02440114 doi (NATIONALLICENCE)springer-10.1007/BF02440114 Handy M. Institut für Geowissenschaften, Justus-Liebig-Universität, Senckenbergstr. 3, D-35390, Giessen, Germany aut The transition from passive to active margin tectonics: a case study from the zone of Samedan (eastern Switzerland) [Elektronische Daten] [M. Handy] The Zone of Samedan is part of a fossil, early Mesozoic rift system originally situated in the distal, Lower Austro-Alpine domain of the Adriatic passive continental margin. An early Mesozoic configuration of asymmetrical rift basins bounded by relative structural highs compartmentalized Late Cretaceous active margin tectonics; Jurassic half-grabens were folded into arcuate synclines, whereas relative structural highs engendered thin, imbricated thrust sheets. West-directed thrusting and folding initiated at the surface and continued to depths favoring mylonitization under lower greenschist-facies conditions. At this time Liguria-Piemontese ophiolites were accreted to Lower Austro-Alpine units directly underlying the Zone of Samedan. Late Cretaceous orogenic collapse of the Adriatic active margin involved the reactivation of west-directed thrusts as low-angle, top-to-the-east, normal faults. These faults accommodated extensional uplift of Liguria-Piemontese ophiolites and Lower Austro-Alpine units beneath and within the Zone of Samedan. During Paleogene collision, some Late Cretaceous faults in the Zone of Samedan were reactivated under lower anchizonal conditions as north-directed thrusts. The latter stages of this early Tertiary thickening were transitional to brittle, high-angle normal faulting associated with top-to-the-east extension and spreading above the warm, uplifting Lepontine dome. Springer-Verlag, 1996 Rifting nationallicence Basin inversion nationallicence Active margin nationallicence Passive margin nationallicence Austro-Alpine nationallicence Alpine tectonics nationallicence Tethys nationallicence Geologische Rundschau Springer-Verlag 85/4(1996-12-01), 832-851 0016-7835 85:4<832 1996 85 531 https://doi.org/10.1007/BF02440114 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02440114 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Handy M. Institut für Geowissenschaften, Justus-Liebig-Universität, Senckenbergstr. 3, D-35390, Giessen, Germany aut NATIONALLICENCE 773 0- Geologische Rundschau Springer-Verlag 85/4(1996-12-01), 832-851 0016-7835 85:4<832 1996 85 531 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer