Investigating Rayleigh Wave Dispersion Across the Carpathian Orogen in Romania

• DOI: 10.20944/preprints202504.0917.v1
• Publication Date: 2025-04-14T01:06:41Z
• Authors: Andrei Mihai; Laura Petrescu; Iren-Adelina Mold...; Mircea Radulian
• Keywords: Rayleigh Wave

Carpathian Orogen represents a natural laboratory for studying geodynamic interactions between lithospheres of different ages. The ancient Archean Craton, such as the East European and Proterozoic platforms like Scythian Moesian platforms, collided with younger Tisza Dacia Mega-Units, resulting in formation current architecture Mountains. To better understand how lithospheric structure on Romanian territory changes from Craton to microplates, we used earthquake data recorded at permanent broadband seismic stations National Seismic Network (RSN). Applying Multiple Filtering Technique, examine dispersion Rayleigh wave group velocities earthquakes located within 4000 km radius epicenter. Travel time tomography, conducted through Fast Marching Surface Tomography, helps us construct velocity maps periods 30 80 s. Our findings highlight low body front Vrancea slab, indicating asthenospheric upwelling due slab verticalization.