engleski

Stable Adria and the External Dinarides: Tectonic Models in the Context of Jurassic-Cretaceous Paleomagnetic Results

Adria is a crustal block of African origin, playing an important role in the geodynamic history of the Central Mediterraneans s.l. It comprises the gently deformed "autochthonous" core of the thrusted and folded External Dinarides, the Apennines and the Southern Alps. A powerful method to reveal possible relative movements between the core and the margins and within each of the margins is paleomagnetism, which can provide quantitative constraints about vertical axis rotations and latitudinal displacement. From authchtonous Adria represented by stable Istria and the Adige embayment paleomagnetic results from 100 geographically distributed localities were evaluated and a reference frame was constructed which characterizes the displacements of stable Adria during Tithonian-Eocene times. Tectonic models published by Herak (1986), Pamić et al. (1998), Tari (2002), Ustaszewski et al. (2008) ad Korbar (2009) were tested against paleomagnetic data with the conclusion, that the fit is the best with the model by Tari who considered the Adriatic islands as the imbricated margin of Adria which is overridden by the fold and thrust belt of the Dinaricum.

Paleomagetism; Stable Adria; External Dinarides; Mesozoic; tectonic models; rotations

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