Naslov
The Middle and Upper Permian deposits in Gorski Kotar: facts and misconceptions

Autori
Aljinović, Dunja ; Sremac, Jasenka

Izvornik
Geologia Croatica : journal of the Institute of Geology Zagreb and the Croatian Geological Society (1330-030X) 50 (1997), 2; 231-242

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
chronostratigraphic division; Permo-Triassic boundary; Permian; Gorski Kotar; Croatia

Sažetak
The frequent occurrence of sandstones and other coarse-grained sedimentary rocks in Gorski Kotar indicates molasse-type sedimentation as a consequence of the intensive erosion of an uplifted terrain in a tectonically active area. The indirect assumptions indicate that the age of the Gorski Kotar Palaeozoic complex, with the exception of a limited occurrence of Carboniferous clastic rocks, corresponds to the clastic Trogkofel beds, i.e. to Middle Permian. The absence of Upper Permian carbonate deposition in Gorski Kotar indicates an interruption in sedimentation at the Permo-Triassic boundary, and a possible hiatus in the Upper Permian. In previous studies it was concluded that there is a continuous transition from the Permian (developed as the Gröden clastic facies) to the Lower Triassic shallow marine sedimentary rocks, although no such transitions occur in either the neighbouring areas (Velebit, Slovenia) nor in the wider Southern Alps. The continuous transition exists only in the carbonate successions (Upper Permian dolomite in the Velebit region and the Bellerophone formation in the Alps).

Izvorni jezik
Engleski

Znanstvena područja
Geologija

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