title: Insights on the upper mantle beneath the Eastern Alps.
abstract: Analyses of Ps and Sp receiver functions from datasets collected by permanent and temporary seismic stations, image a seismic discontinuity, due to a negative velocity contrast across the entire Eastern Alps. The receiver functions show the presence of the discontinuity within the upper mantle with a resolution of tens of kilometers laterally. It is deeper (100-130 km) below the central portion of the Eastern Alps, and shallower (70-80 km) towards the Pannonian Basin and in the Central Alps. Comparison with previous studies renders it likely that the observed discontinuity coincides with the lithosphere-asthenosphere boundary (LAB) east of 15°E longitude, while it could be associated with a low velocity zone west of 15°E.
authors.affiliation: Institut für Meteorologie und Geophysik, Universität Wien, Althanstraße 14 (UZA II), 1090 Vienna, Austria.
authors.forename: Irene
authors.initials: I
authors.lastname: Bianchi
authors.affiliation: Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089-0740, USA.
authors.forename: Meghan S
authors.initials: MS
authors.lastname: Miller
authors.affiliation: Institut für Meteorologie und Geophysik, Universität Wien, Althanstraße 14 (UZA II), 1090 Vienna, Austria.
authors.forename: Götz
authors.initials: G
authors.lastname: Bokelmann
keywords: Eastern Alps; P-receiver functions; S-receiver functions; lithosphere–asthenosphere boundary; low velocity zone; upper mantle
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