Complex local Moho topography in the Western Carpathians: Indication of the ALCAPA and the European Plate contact

0433253 - GFÚ 2016 RIV NL eng J - Článek v odborném periodiku
Hrubcová, Pavla - Środa, P.
Complex local Moho topography in the Western Carpathians: Indication of the ALCAPA and the European Plate contact.
Tectonophysics. Roč. 638, 7 January (2015), s. 63-81. ISSN 0040-1951. E-ISSN 1879-3266
Grant CEP: GA ČR GA13-08971S
Institucionální podpora: RVO:67985530
Klíčová slova: Western Carpathians * seismic modelling * crustal structure * anomalous Moho * Bohemian Massif * Pannonian Basin
Kód oboru RIV: DC - Seismologie, vulkanologie a struktura Země
Impakt faktor: 2.650, rok: 2015

Seismic data from deep refraction and wide-angle reflection profiles intersecting the Western Carpathians show distinct upper-mantle Pn phases with anomalous apparent velocities identified in the first and later arrivals. Their systematic analysis indicates that such phases are present in numerous seismic sections both for in-line and off-line shots. They are observed in data from profiles intersecting the Carpathians in the west at the contact with the Bohemian Massif; similar feature was also found in data at the northern edge of the Carpathians at the contact with the North European Platform. Modelling of these anomalous Pn phases shows that they originate due to local structural anomalies of the Moho discontinuity detected in several places along the Western Carpathian arc. Such anomalies are located in close lateral proximity of the Pieniny Klippen Belt representing the contact between the stable European Plate in the north and the ALCAPA (Alpine-Carpathian-Pannonian) microplate in the south.
Trvalý link: http://hdl.handle.net/11104/0237499