New paleomagnetic results from the Inner Dinarides, SW Serbia
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As a result of the paleomagnetic co-operation between Hungarian and Serbian specialists in the last decades a paleomagnetic paper was published about the Fruska Gora (Lesic et al., 2007) and an other one about the magnetic fabrics of the intrusive and extrusive magmatic rocks of the Kopaonik area (Lesic et al., 2013). During more recent years several overstep sequences were tested from the Western Vardar zone. The aim of our present study was to find out if the units belonging to the Inner Dinarides rotated in the same sense as the overstep sequences or different rotations occurred. For that reason we sampled 12 localities within the research area. Five of which represent Late Cretaceous sediments in the area of Tara Mt., while the others geographically distributed Triassic and Jurassic succession. The sampled localities belong to different thrust sheets.Cite
We report our preliminary results from 14 sites sampled in sedimentary rocks from Transylvanian Basin. In the northwestern part of the Basin (Cluj-Jibou area) we sampled 12 sites in Senonian and Tertiary rocks. The other two sites are from the Eocene sandstones from the southeastern corner of the basin (Brasov area). The remanent magnetization of the sampled sites has been studied using thermal and AF demagnetization. We obtained good paleomagnetic results from 5 sites in Cluj-Jibou area and 1 site in Brasov area. The new results show that the large clockwise rotations identified by previous paleomagnetic studies is post-Eocene. This rotation had affected the entire basin. The result from the Pglia tuff (NN5 biozone) shows at least 23° of clockwise rotation post middle Badenian.
Clockwise
Neotectonics
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Lineation
Marl
Clockwise
Apparent polar wander
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Clockwise
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Summary In order to determine tectonic evolution (rotational and latitudinal movements) of the North of the Lake Van, oriented paleomagnetic samples were collected from the volcanic rocks whose ages has already been known from radiometric aging methods. Paleomagnetic samples, whose orientations were determined using both magnetic and sun compasses, were collected using a portable motorised core drill. The ages of sampled volcanic rocks are between Miocene to Quaternary times. The origin of the collected paleomagnetic samples from different volcanic series are related to the volcanic centers in this region such as: Aladağ, Tendürek, Etrüsk, Girekol Mountains and Pliocene plateau basalts.
Radiometric dating
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Neogene
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Clockwise
Geomagnetic pole
Natural remanent magnetization
Red beds
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Preliminary paleomagnetic data from the south-western part of the Holy Cross Mts (Poland) are presented. Paleomagnetic directions, obtained from the Lower Cambrian (declination = 340°, inclination = 78°), the Lower Ordovician ( D = 198°, I = 74°) and the Upper Silurian ( D = 218°, I =7° or, alternatively, D = 229°, I = 27°) sandstones and greywackes, being compared with coeval paleomagnetic data from the East-European Platform implies 4000 km separation of both regions in the Cambrian - Lower Ordovician lime and their final joining in the Upper Silurian. Paleolatitude similarity of the area under study to the Armorica Plate in the Lower Paleozoic is also suggested.
Conodont
Magnetic declination
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Peninsula
Outcrop
Clockwise
Apparent polar wander
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Clockwise
Magnetic declination
Magnetic dip
Trias
Ladinian
Early Triassic
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