The Northeastern Margin of the Adriatic Carbonate Platform

Geologia Croatica

Ivo Velić¹  Ivan Dragičević² 

[1] Croatian Geological Survey;Faculty of Mining, Geology and Petroleum Engineering;

关键词: Adriatic Carbonate Platform (AdCP);    External Dinarides;    Northeastern margin;    Depositional systems;    Palaeogeography;    Geodynamic evolution;    Jurassic;    Cretaceous;    Croatia;    Bosnia and Herzegovina;    Slovenia;    Montenegro;   

DOI  :  10.4154/GC.2002.16

来源: DOAJ

【 摘 要 】

At the end of Pliensbachian or during the Toarcian, several carbonate

platforms were individualised by extensional tectonics in southern

Tethys, of which the Adriatic Carbonate Platform is one. As a unique

and isolated shallow marine depositional system it existed until the

end of the Cretaceous. In the Late Lias, the platform margins and

slopes were formed by the individualisation processes. Due to the

presence of younger sedimentary cover and tectonic disruption from

the Early Jurassic until the present, only small parts of the north-eastern

margin and its slope are exposed at the surface.

During the entire “life-span” of the platform, its NE margin and

slope retained more or less the same palaeogeographic position – from

western to south-eastern Slovenia, through the central part of Croatia,

western and central Bosnia, northern Herzegovina and Montenegro

all the way to northern Albania. The region between Žumberak in

Croatia and central Bosnia was the most dynamic part of the platform

margin during the Jurassic and Cretaceous. Shifts of the marginal and

slope facies were recorded in Žumberak, where the platform area was

progressively reduced during the period from the Lias to the Malm.

At the same time, the platform was extended in central Bosnia and

Montenegro. A more pronounced reduction of the platform in Cenomanian times marked the beginning of the process of disintegration.

The end of the Cretaceous was also the end of the “life” of the Adriatic

Carbonate Platform. It mostly became emergent, and the renewed

shallow marine carbonate depositional environments in the Eocene

were short-lived and lacked the previous platform characteristics, as

well as the regional distribution and integrity.

【 授权许可】

Unknown