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Crystalline basement of the South Pannonian Basin based on surface and subsurface data (CROSBI ID 82767)

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Pamić, Jakob Crystalline basement of the South Pannonian Basin based on surface and subsurface data // Nafta : exploration, production, processing, petrochemistry, 49 (1998), 12; 371-390

Podaci o odgovornosti

Pamić, Jakob

engleski

Crystalline basement of the South Pannonian Basin based on surface and subsurface data

Based on geological, geophysical, mineralogical, petrological and geochemical data obtained by field and laboratoy investigations of the samples taken on outcrops and cores of oil-wells, the basement of the South Pannonian Basin can be divided into four megablocks. 1) The largest South Tisia (Slavonija and Moslavina) megablock, composed mainly of Paleozoic metamorphic sequences, migmatites and granites. 2) The slightly smaller North Dinaridic megablock, composed of Late Cretaceous-Paleogene flysch, Paleogene metamorphic sequences, synkinematic granites and tectonized ophiolite melange. 3) The much smaller Zagorje-Midtransdanubia megablock, consisting of mixed tectonostratigraphic units from the Southern Alps and northwestern Dinarides. 4) The smallest Pohorje-Međimurje megablock, composed of tectonostratigraphic units from the Eastern Alps and Periadriatic zone. Geodynamic evolution of the South Pannonian Basin can be considered in two segments. The eastern segment was related to the interaction between the South Tisia and North Dinarides, whereas the western segment was related to the interaction between the Eastern Alps and the area adjoining the northwesternmost Dinarides and Southern Alps. The Tisia is underthrust below the North Dinarides and thus incorporated in their deep structure. On the other hand, the North Dinaridic tectonostratigraphic units are thrust onto Neogene formations of the south Pannonan Basin. The Tisia represents a continental fragment, probably broken off from the South Eurasia which started its southward transport during initial phases of Early Miocene synrifting evolution of the Pannonian Basin, brought about by the uprise of the upper mantle and attenuation of the continental crust.

crystalline basement; megablock; geodynamic evolution

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Podaci o izdanju

49 (12)

1998.

371-390

objavljeno

0027-755X

Povezanost rada

Geologija