Geologia Croatica, Vol. 45 No. 1, 1992.
Original scientific paper
https://doi.org/10.4154/GC.1992.09
Origin and Depositional Environments of the Evaporite and Carbonate Complex (Upper Permian) from the Central Part of the Dinarides (Southern Croatia and Western Bosnia)
Josip Tišljar
; Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb
Abstract
The Upper Permian sediments from central part of the Dinarides contain three main facies : 1. - carbonates; 2.- evaporites with early diagenetical dolomites and 3.- clastic rocks (siltstones and sandstones) and one special rock type- carbonate cavity breccias. The carbonate facies include lagoonal and intertidallime stone, evaporite facies contain gypsum (originated by hydration of anhydrites), early-diagenetical dolomites and anhydrites deposited in coastal sabkha environment.The clastic rocks were deposited either fore-shore or playa to saltlakeplaya environments. The carbonate cavity breccias are interpretatedas a terrestrial features, i .e. secondary surface products of physical and chemical weathering oftectonically disrupted carbonate-evaporitesediments. The Upper Permian evaporites and carbonates of the centralDinarides are sediments deposited in evaporitic conditions arround the edges of an epeiric marine basin which existed in conditions of a general regressive tendency and permanent coastal seawards progradation. The Upper Permian evaporites of central Dinarides are comparable with evaporites from the Bellerophon Formation from the Southern Alps, Italy.
Keywords
Evaporites; Gypsum; Anhydrite; Earlydiagenetic dolomites; Terrestrial breccias; Coastal Sabkha and Playa environments; Upper Permian; Dalmatia; Lika; Bosnia; Dinarides
Hrčak ID:
183573
URI
Publication date:
20.8.1992.
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