engleski

Basic geological data from the Croatian part of the Zagorje - Mid-Transdanubian Zone

The most characteristic tectonostratigraphic units of the Zagorje - Mid-Transdanubian Zone are represented in outcrops of the Medvednica Mts. of northwestern Croatia. Following its present-day structural stacking order from the bottom to the top, four main tectonostratigraphic units can be distinguished: 1) Tectonized ophiolite mélange; 2) Paleozoic-Triassic magmatic-sedimentary complex overprinted by Early Cretaceous metamorphism; 3) Late Cretaceous-Paleocene flysch; and 4) Triassic clastic and platform carbonate formations. Based on data available, main characteristics of each tectonostratigraphic unit are reviewed. In the Zagorje - Mid-Transdanubian Zone in Croatia units showing Alpine and Dinaridic characteristics, respectively occur. Oil-well data indicate that the previously supposed location of southern part of the Zagreb-Zemplen Fault Zone is to be expected further eastward. We propose that the area adjoining Zagreb-Zemplen Fault Zone and the southern part of the Mid-Transdanubian Zone can be taken as a northwestern boundary of the Internal Dinarides.

Zagorje - Mid-Transdanubian Zone; Medvednica Mts.; mixed Alpine-Dinaridic lithologies; Zagreb-Zemplen Fault Zone; northwestern boundary of the Internal Dinarides

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