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Article

Geologica Carpathica, 1995, vol. 46, no. 2
MESOZOIC EVOLUTION OF TATRIC UNITS IN THE MALE KARPATY AND POVAZSKY INOVEC MTS.: IMPLICATIONS FOR THE POSITION OF THE KLAPE AND RELATED UNITS IN WESTERN SLOVAKIA
Abstract
The Tatricum is a principal crustal superunit of the outer part of the Central Western Carpathians. It comprises pre-Alpine crystalline basement and its Late Paleozoic and Mesozoic sedimentary cover. The Mesozoic sedimentary and structural records indicate stable shelf conditions during the Triassic, Early Jurassic initial rifting event, Middle Jurassic to Early Cretaceous extensional tectonic regime and mid-Cretaceous flexural subsidence in front of the orogenic wedge prograding from the south. The extension created a passive margin along the north Tatric edge bordering the Vahic (South Penninic) oceanic domain. The passive margin was inverted to a convergent one as late as during the Early Senonian. The Vahic oceanic crust was then subducted southwards below the Tatricum. The final collision of the Centrocarpathian thrust stack with the Oravic (Pieniny Klippen Belt) ribbon continent during the latest Cretaceous resulted in transpression and transtension in this meso-Alpine suture zone. The tectonic scenario described is inconsistent with current views on the evolution of the Tatric-Oravic intervening zones; therefore an alternative model which considers some Klippen and Peri-Klippen Belt units to be derived from the Central Carpathians, specifically from the Fatric (Krizna) domain, is presented and discussed.
Pages:
101 - 112
Published online:
0. 0. 1995