Abstract
On the Dinaric carbonate platform along the margin of the Upper Malmian shelf carbonate breccias were formed. The most typical, various and extended breccias outcrop at Korinj in the Suha Krajina area. The breccias are composed of various, more or less angular limestone and dolomite fragments, and of calcitic and dolomitic cement. The study shows that breccias from different stratigraphic levels were formed in different ways and environments. Generally, the sedimentary succession consists of limestones, dolomites and carbonate breccias. The sedimentary structures of the succession indicate high energy shallow-water environment. Determined microfauna and flora of the succession prove the Upper Malmian age of the studied sediments. The shallow-water deposition, the breccias, and the subaerial exposures, evidenced by bauxite at some places in the Suha Krajina area, are considered to be connected with eustatic sea-level variations as well as synsedimentary fracturing and block-faulting.
Highlights
Detailed geological investigations have been carried out in the section Krka-Mali Korinj in the Suha Krajina area about 35 km SSE frora Ljubljana (Fig. 1.)
The breccias that appear in numerous stratigraphie levels of the Malmian sedimentary succession at Korinj in the Suha Krajina area have been named the Korinj carbonate breccias
The polymict karst breccias are interpreted to be the lateral equivalent of the Lower Malmian-Upper Malmian bauxite horizon
Summary
Detailed geological investigations have been carried out in the section Krka-Mali Korinj in the Suha Krajina area about 35 km SSE frora Ljubljana (Fig. 1.). A complete succession of the Jurassic beds is exposed including the contacts between the Upper Triassic and Lower Liassic as well as the Upper Malm and the Lower Cretaceous. In the Malmian sedimentary succession at Korinj numerous breccias lenses and irregular bodies have been found. The breccias outcrop in localities Kamni vrh, Ograja, Šataja and Ciganov vrh. They are underlain by various types of tidal bar oolitic limestones and are conformably overlain by Tintinnina-Clypeina limestones. Different breccias were formed in different time intervals of the Malm period and are present
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