naa a22 4500 51077489X CHVBK 20180411083227.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s12210-013-0239-z doi (NATIONALLICENCE)springer-10.1007/s12210-013-0239-z Evidence for deep subduction of Austroalpine crust (Texel Complex, NE Italy) [Elektronische Daten] [Stefano Zanchetta, Stefano Poli, Daniela Rubatto, Andrea Zanchi, Giovanni Bove] We report here the discovery of UHP eclogites in the Ulfas Valley within the Texel Complex (Meran, NE Italy), which has important implications on the evolution of the Austroalpine nappe stack in the Eastern Alps. Exsolved K-feldspar and phengite lamellae within omphacite relics, together with an unusually high K-content of the host clinopyroxene, point to equilibrium pressures at least close to the quartz/coesite transition. The age of the high-pressure metamorphism is constrained by U-Pb dating of metamorphic zircon at 85 ± 4 Ma. These new data suggest pressure conditions for the Cretaceous eclogitic metamorphism of the Texel Complex higher than hitherto reported data, possibly indicating that several sectors of the Africa-Adria derived Austroalpine margin were subducted to mantle depths during the early stages of the Alpine orogeny. Accademia Nazionale dei Lincei, 2013 Austroalpine nationallicence UHP metamorphism nationallicence K-feldspar exsolutions nationallicence Cretaceous subduction nationallicence Zanchetta Stefano Dipartimento di Scienze Geologiche e Geotecnologie, Università degli Studi di Milano Bicocca, Piazza della Scienza 4, 20126, Milan, Italy aut Poli Stefano Dipartimento di Scienze della Terra, Università degli Studi di Milano, Via Botticelli, 20133, Milan, Italy aut Rubatto Daniela Research School of Earth Sciences, The Australian National University, 0200, Canberra, ACT, Australia aut Zanchi Andrea Dipartimento di Scienze Geologiche e Geotecnologie, Università degli Studi di Milano Bicocca, Piazza della Scienza 4, 20126, Milan, Italy aut Bove Giovanni Ufficio Geologia e Prove Materiali, Provincia Autonoma di Bolzano, Via Val d'Ega 48, Cardano, Italy aut Rendiconti Lincei Springer Milan 24/2(2013-06-01), 163-176 2037-4631 24:2<163 2013 24 12210 https://doi.org/10.1007/s12210-013-0239-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12210-013-0239-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zanchetta Stefano Dipartimento di Scienze Geologiche e Geotecnologie, Università degli Studi di Milano Bicocca, Piazza della Scienza 4, 20126, Milan, Italy aut NATIONALLICENCE 700 1- Poli Stefano Dipartimento di Scienze della Terra, Università degli Studi di Milano, Via Botticelli, 20133, Milan, Italy aut NATIONALLICENCE 700 1- Rubatto Daniela Research School of Earth Sciences, The Australian National University, 0200, Canberra, ACT, Australia aut NATIONALLICENCE 700 1- Zanchi Andrea Dipartimento di Scienze Geologiche e Geotecnologie, Università degli Studi di Milano Bicocca, Piazza della Scienza 4, 20126, Milan, Italy aut NATIONALLICENCE 700 1- Bove Giovanni Ufficio Geologia e Prove Materiali, Provincia Autonoma di Bolzano, Via Val d'Ega 48, Cardano, Italy aut NATIONALLICENCE 773 0- Rendiconti Lincei Springer Milan 24/2(2013-06-01), 163-176 2037-4631 24:2<163 2013 24 12210 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer