PALAEOMAGNETIC INVESTIGATIONS IN THE BIELE KARPATY MTS. UNIT, FLYSCH BELT OF THE WESTERN CARPATHIANS

Year, pages: 1994, 35 - 43

Palaeomagnetic investigations into the Flysch Belt of the Western Carpathians of the present work were concentrated in the area of the Biele Karpaty Mts. This area is formed by Campanian to Early Eocene flysch sequences, lying mostly in subhorizontal position. The samples were subjected to complex analyses of remanence and magnetic stability. With each sample Zijderveld diagrams were constructed and the multi-component analysis of remanence carried out. Fold tests of stability were applied to the separated remanence components. After final processing, 9 sites yielded samples of Late Senonian and 2 localities of Palaeocene sediments with suitable palaeomagnetic properties. With the use of Fisher’s statistics (1953), the following was determined for the B-remanence components: the Late Senonian data corrected for the dip of rocks gave k = 86.04, α = 5.58°; the data uncorrected for the dip of rocks gave k = 11.95, α = 15.53°, while fold tests were not applicable to Palaeocene sediments. Thus the B remanence components of Late Senonian rocks originated prior to folding, and they exhibited both normal and reverse polarizations. The computed positions of virtual poles or the position of the mean palaeomagnetic pole fall within the domain of Cretaceous pole positions for the African Plate. The palaeomagnetic declination points to a palaeotectonic anti-clockwise rotation. These results are coincident with the palaeomagnetic data, from the former investigations into the Outer Flysch units of the Western Carpathians. They indicate an affinity of the palaeopole positions of Carpathian Flysch Belt to the comuted positions of palaeopole of the African Lithospheric Plate.

Krs, M., Krsova, M., Pruner, P., Chvojka, R., Potfaj, M. 1994. PALAEOMAGNETIC INVESTIGATIONS IN THE BIELE KARPATY MTS. UNIT, FLYSCH BELT OF THE WESTERN CARPATHIANS. In Geologica Carpathica, vol. 45, no.1, pp. 35-43. 1335-0552.

Krs, M., Krsova, M., Pruner, P., Chvojka, R., Potfaj, M. (1994). PALAEOMAGNETIC INVESTIGATIONS IN THE BIELE KARPATY MTS. UNIT, FLYSCH BELT OF THE WESTERN CARPATHIANS. Geologica Carpathica, 45(1), 35-43. 1335-0552.