| Autor: |
Lewandowski, Marek, Werner, Tomasz, Vlahović, Igor, Velić, Ivo, Sidorczuk, Magdalena |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Předmět: |
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| Popis: |
We present results of paleomagnetic studies on the Lower Permian clastic deposits and the Jurassic carbonates from Velebit Mt (Karst Dinarides, Croatia), aiming at the better understanding of a tectonic evolution of this part of the Karst Dinarides. The area of the Velebit Mt. represented a NE margin of the Gondwana during the Carboniferous and Permian. Deposition of clastic rocks during the Carboniferous and Early Permian was followed by thick sequence of predominantly carbonate rocks deposited on the Adria Microplate, ranging in age from Mid-Permian to Eocene/Oligocene. Thin sections analyses shows Fe-oxides infilling interstitial spaces in the Permian redbeds, while magnetic extracts from the Jurassic carbonates revealed grains of magnetite of detrital origin. In Permian deposits rock-magnetic studies (hysteresis and SIRM(T)) revealed that magnetic susceptibility is mostly carried by the paramagnetic matrix and main carriers of remanence are hematite in redbeds with increasing contribution of SP/SD magnetite in younger subsections and in some conglomerates. In Jurassic carbonates SIRM(T) experiments revealed low temperature (Tub |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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