Moho depths beneath the European Alps: a homogeneously processed map and receiver functions database
Year: 2023
Type: article
Abstract: . Since the 1980s a number of active and passive seismic experiments have revealed significant information about the Earth’s crust in the broader European Alpine region. In this paper, we use seismic waveform data from the AlpArray Seismic Network and three other temporary seismic networks, to perform receiver function (RF) calculations and time−to−depth migration to update the knowledge of the Moho discontinuity beneath the broader European Alps. In particular, we set up a 5 homogeneous processing scheme to compute RFs using the time-domain iterative deconvolution method, and apply consistent quality control to yield 107,633 high-quality RFs. We then perform time−to−depth migration in a newly implemented 3D spherical coordinate system and using a European-scale reference P and S wave velocity model. This approach, together with the dense data coverage, provide us with a 3D migrated volume, from which we present migrated profiles that reflect the first-order crustal thickness structure. We create a detailed Moho map by manually picking the discontinuity in a set of orthogonal 10 profiles covering the entire area. We make the RF dataset, the software for the full processing workflow, as well as the Moho map, openly available; these open-access datasets and results will allow other researchers to build on the current study.
Source: Earth system science data
Authors: Konstantinos Michailos, György Hetényi, Matteo Scarponi, Josip Stipčević, Irene Bianchi, Luciana Bonatto, Wojciech Czuba, Massimo Di Bona, Aladino Govoni, Katrin Hannemann, Tomasz Janik, Dániel Kalmár, Rainer Kind, Frederik Link, Francesco Pio Lucente, Stephen Monna, Caterina Montuori, Stefan Mroczek, Anne Paul, Claudia Piromallo, Jaroslava Plomerová, Julia Rewers, Simone Salimbeni, Frederik Tilmann, Piotr Środa, Jérôme Vergne, the AlpArray-PACASE Working Group
Institutions: University of Geneva, University of Lausanne, HUN-REN Institute of Earth Physics and Space Science, Czech Academy of Sciences, Istituto Nazionale di Geofisica e Vulcanologia, Czech Academy of Sciences, Institute of Geophysics, University of Zagreb, University of Vienna, University of La Serena, Institute of Geophysics Polish Academy of Sciences, Polish Academy of Sciences, University of Münster, Hungarian Academy of Sciences, GFZ Helmholtz Centre for Geosciences, Freie Universität Berlin, Goethe University Frankfurt, Centre National de la Recherche Scientifique, Institut des Sciences de la Terre, Institut de Recherche pour le Développement, Université Savoie Mont Blanc, INGV Sezione di Bologna, Institut Terre & Environnement de Strasbourg, Université de Strasbourg
Language: English
Topic: Seismic Waves and Analysis
Subfield: Geophysics
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,509
Funders: National Science Foundation, Univerzita Komenského v Bratislave, Slovenská Akadémia Vied, Agence Nationale de la Recherche, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Grantová Agentura České Republiky, Narodowym Centrum Nauki, Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, Uniwersytet Śląski w Katowicach, Slovenská technická univerzita v Bratislave
Awards: Probing Alpine geodynamics with state-of-the-art seismic arrays and tomography, OROG3NY: structures and processes in 3D mountain building - continuation proposal, G3321001499, Probing the 3D Alpine lithosphere by Full Waveform Inversion of the AlpArray teleseismic data, G5028283074, G6275088015, G6818659007, MOBNET in AdriaArray - Pan-European multi-disciplinary reserach of Adriatic plate, G8021047030, G8148006109, Innovative strategies for observing and modelling natural systems
OpenAlex ID: W4377942471