caa a22 4500 606150196 CHVBK 20210128105226.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s00531-014-1090-x doi (NATIONALLICENCE)springer-10.1007/s00531-014-1090-x Zurbriggen Roger Feldmatt 10, 6206, Neuenkirch, Switzerland aut Ordovician orogeny in the Alps: a reappraisal [Elektronische Daten] [Roger Zurbriggen] An important part of the pre-Mesozoic basement of the Alps is the product of orogenic processes occurred in Ordovician times. Most of the geological constrains for this reconstruction have been obtained by the study of the Strona-Ceneri zone in the Southern Alps, where Alpine overprint was weak. The erosion of late Pan-African belts delivered large amounts of greywackes and pelites into subduction zones along Gondwana. The sediments were subducted and accreted to form wide complexes. As a result of the large sediment input, subduction retreated and the mantle-derived magmas intruded the base of the fertile "mud pile.” This initiated substantial anatexis to produce peraluminous magmas, which intruded and extruded syntectonically. Thereby, the predominantly steeply structured subduction-accretion complex provided ideal pathways for the uprising magmas, and down-thrusting host rocks to result in an isostatically stable crust. The SE Australian Lachlan fold belt is interpreted as an upper crustal analog of the Strona-Ceneri zone. Based on the combination of their geology, a crustal profile through an Alaskan type of orogen is drawn. Springer-Verlag Berlin Heidelberg, 2014 Ordovician forearc magmatism nationallicence Cratonization nationallicence Alaskan-type subduction-accretion nationallicence Ceneri gneiss nationallicence Strona-Ceneri zone nationallicence Lachlan fold belt nationallicence International Journal of Earth Sciences Springer Berlin Heidelberg 104/2(2015-03-01), 335-350 1437-3254 104:2<335 2015 104 531 https://doi.org/10.1007/s00531-014-1090-x text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00531-014-1090-x text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Zurbriggen Roger Feldmatt 10, 6206, Neuenkirch, Switzerland aut NATIONALLICENCE 773 0- International Journal of Earth Sciences Springer Berlin Heidelberg 104/2(2015-03-01), 335-350 1437-3254 104:2<335 2015 104 531 SWISSBIB 499116798