Moho depth determination from P receiver function analysis in the Carpathian Basin

Kalmár, D. [Kalmár, Dániel (geofizika), szerző] Geodéziai és Geofizikai Intézet (CSFK); G., Hetényi [Hetényi, György (geofizikus), szerző] Geodéziai és Geofizikai Intézet (CSFK); B., Süle [Süle, Bálint (Szeizmológia), szerző] Geodéziai és Geofizikai Intézet (CSFK); I, Bondár [Bondár, István (Geofizika), szerző] Geodéziai és Geofizikai Intézet (CSFK)

Angol nyelvű Absztrakt / Kivonat (Könyvrészlet) Tudományos
    • MTMT: 30359575
    We perform receiver function analysis to determine a detailed map of the crust-mantle boundary and the crustal velocity structure of the transition zone between the Eastern Alps and the Carpathian Basin. We use data from the AlpArray temporary seismic network, the permanent stations of the Hungarian National Seismological network, stations of a private network operated by Georisk Ltd., temporary stations of the Carpathian Basin and South Carpathian Basin Projects, as well as permanent seismological stations in the neighbouring countries for the time period between 2002 and 2017. Altogether about 200 seismological stations are used in the analysis. Owing to the dense station coverage we can achieve so far unprecedented resolution, thus extending our previous work on the region. We apply three different quality assurance procedures for the waveforms and the obtained receiver functions. Receiver functions are calculated by the iterative time domain deconvolution approach. We present the quality controlled P receiver functions (radial and transversal component) and we will investigate the transverse components for back-azimuthal patterns that may point to anisotropy or dipping interfaces. We show some cross-sections beneath the Eastern Alps – Pannonian Basin transition zone, and concentrate on major structural elements of the area such as Mid-Hungarian Zone and Balaton Line. Finally, we present results on the Moho map obtained by H-K analysis. We also compare our results to previous active and passive seismological images in terms of Moho depth and crustal velocities.
    Hivatkozás stílusok: IEEEACMAPAChicagoHarvardCSLMásolásNyomtatás
    2023-03-21 08:24