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Original Article |
1 1Department of Palaeontology, Eötvös University, P.O. Box 120, H-1518 Budapest, Hungary (e-mail: kazmer@ludens.elte.hu)
2 2Institute and Museum of Geology and Palaeontology, University of Tübingen, Sigwartstr. 10, D-72076 Tübingen, Germany
Scarce Palaeogene sediment remnants in the Eastern Alps and Western Carpathians are interpreted as remains of a continuous forearc basin. New apatite fission-track geochronological data corroborate mild PaleoceneEocene exhumation and relief formation in the Eastern Alps. Palinspastic restoration and nine palaeogeographical maps of the Eastern Alps and Western Carpathians ranging from the Paleocene to the Late Oligocene epoch illustrate west to east migration of subsidence in the forearc basin. Subsidence isochrons indicate that oblique subduction of the European plate below the Adriatic plate was responsible for forearc basin migration at a rate of 8 mm a1. The Periadriatic Lineament was formed as a result of shearing by oblique subduction. The Neogene to recent Sumatra forearc basin is an analogue for the evolution of the East AlpineWest Carpathian forearc basin.
Key Words: Alps Carpathians Palaeogene fission-track dating palaeogeography
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