Author:
Emő Márton Eötvös Loránd Geophysical Institute of Hungary H-1145 Budapest, Columbus u. 17-23, Hungary

Search for other papers by Emő Márton in
Current site
Google Scholar
PubMed
Close
Restricted access

At the Permian/Triassic boundary, terrestrial as well as marine life was seriously decimated. The drastic reduction was possibly due to a global event. In order to demonstrate this, sections at great distance from one another need to be correlated, which is a difficult task, especially between marine and land sections. One of the methods, which is independent of the environment, is magnetostratigraphic correlation. It was intended to apply this method for precise dating to Permian/Triassic boundary sections from the Bükk Mts, which include strata with high concentrations of magnetospherules. Since the Paleozoic-Mesozoic rocks of the Bükk Mts are anchimetamorphosed and intensively tectonized, it was decided to carry out a pilot paleomagnetic study on samples from two sections with different dips, before collecting a large number of samples for the intended magnetostratigraphy survey. The results of this study can be summarized as follows. The rocks of the sections possess remanences of pre-tilting age, and the magnetic fabric does not show any evidence of strong deformation. Nonetheless, the magnetization can not be primary since the measured inclinations are far too steep for the Permian/Triassic boundary. The estimated age of the acquisition of the paleomagnetic signal is Late Cretaceous. Although the results are negative in terms of magnetostratigraphy, they deserve attention from a tectonic point of view. The observations suggest that either the studied localities or the entire range of the Bükk Mts was involved in a post-Cretaceous (but pre-Miocene) counterclockwise rotation of about 40°

  • Tarling, D., H., F. Hrouda 1993: The magnetic anisotropy of rocks. - Chapman and Hall, London, 217 p. Van der Voo, R. 1993: Paleomagnetism of the Atlantic, Tethys and Iapetus oceans. - Cambridge University Press, Cambridge, 411 p.

    The magnetic anisotropy of rocks , () 217 .

  • Márton, E., 1998: The bending model of the Transdanubian Central Range (Hungary) in the light of Triassic palaeomagnetic data. - Geophysical Journal International, 134, pp. 625-633.

    'The bending model of the Transdanubian Central Range (Hungary) in the light of Triassic palaeomagnetic data ' () 134 Geophysical Journal International : 625 -633 .

    • Search Google Scholar
  • Márton, E., D. P. Elston 1987: Tectonic rotations south of the Bohemian Massif from palaeomagnetic directions of Permian red beds in Hungary. - Tectonophysics, 139, pp. 43-51.

    'Tectonic rotations south of the Bohemian Massif from palaeomagnetic directions of Permian red beds in Hungary ' () 139 Tectonophysics : 43 -51 .

    • Search Google Scholar
  • Márton, E., P. Márton 1996: Large scale rotations in North Hungary during the Neogene as indicated by palaeomagnetic data. - In: A. Morris, D. H. Tarling (Eds): Palaeomagnetism and Tectonics of the Mediterranean Region. Geological Society Special Publication, 105, pp. 153-173.

    Large scale rotations in North Hungary during the Neogene as indicated by palaeomagnetic data , () 153 -173 .

    • Search Google Scholar
  • Menning, M., 1995: A numerical time scale for the Permian and Triassic periods: An integrated time analysis. - In: P. Scholle A., T. M. Peryt, D. S. Ulmer-Scholle (Eds): The Permian of Northern Pangea, Vol 1. Springer-Verlag Berlin, Heidelberg, New York. pp. 77-97.

    A numerical time scale for the Permian and Triassic periods: An integrated time analysis , () 77 -97 .

    • Search Google Scholar
  • Muttoni, G., E. Garzanti, L. Alfonsi, S. Cirilli, D. Germani, W. Lowrie 2001: Motion of Africa and Adria since the Permian: paleomagnetic and paleoclimatic constraints from northern Libya. - Earth and Planetary Science Letters, 192, pp. 159-174.

    'Motion of Africa and Adria since the Permian: paleomagnetic and paleoclimatic constraints from northern Libya ' () 192 Earth and Planetary Science Letters : 159 -174 .

    • Search Google Scholar
  • Árkai, P. 1983: Very low- and low-grade Alpine regional metamorphism of the Paleozoic and Mesozoic formations of the Bükkium, NE Hungary. - Acta Geol. Hung., 26, pp. 83-101.

    'Very low- and low-grade Alpine regional metamorphism of the Paleozoic and Mesozoic formations of the Bükkium, NE Hungary ' () 26 Acta Geol. Hung. : 83 -101 .

    • Search Google Scholar
  • Haas, J., K. Hips, P. Pelikán, N. Zajzon, E. Tardi-Filácz 2004: Facies analysis of marine Permian/Triassic boundary section in Hungary. - Acta Geol. Hung., 47/4, pp. 297-340.

    'Facies analysis of marine Permian/Triassic boundary section in Hungary ' () 47 Acta Geol. Hung. : 297 -340 .

    • Search Google Scholar
  • Kirschvink, J., L. 1980: The least-squares line and plane and the analysis of paleomagnetic data. - Geophysical Journal of the Royal Astronomical Society, 62, pp. 699-718.

    'The least-squares line and plane and the analysis of paleomagnetic data ' () 62 Geophysical Journal of the Royal Astronomical Society : 699 -718 .

    • Search Google Scholar
  • Besse, J., V. Courtillot 2002: Apparent and true polar wander and the geometry of the geomagnetic field over the last 200 Myr. - J. of Geophys. Res., 107 B11, pp. EPM6-1-EPM6-31.

    'Apparent and true polar wander and the geometry of the geomagnetic field over the last 200 Myr ' () 107 J. of Geophys. Res. : EPM6-1 -EPM6-31 .

    • Search Google Scholar
  • Besse, J., V. Courtillot 2003: Correction to "Apparent and true polar wander and the geometry of the geomagnetic field over the last 200 Myr". - J. of Geophys. Res., 108 B10, pp. EPM3-1-EPM3-2.

    'Correction to "Apparent and true polar wander and the geometry of the geomagnetic field over the last 200 Myr" ' () 108 J. of Geophys. Res. : EPM3-1 -EPM3-2 .

    • Search Google Scholar
  • Fisher, R., A. 1953: Dispersion on a sphere. - Proceedings of the Royal Society, London, 217, pp. 295-305.

    'Dispersion on a sphere ' () 217 Proceedings of the Royal Society, London : 295 -305 .

    • Search Google Scholar
  • Collapse
  • Expand

Acta Geologica Hungarica
Language English
Size  
Year of
Foundation
1952
Publication
Programme
changed title
Volumes
per Year
 
Issues
per Year
 
Founder Magyar Tudományos Akadémia  
Founder's
Address
H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5278 (Print)
ISSN 1588-2594 (Online)

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Dec 2023 14 0 0
Jan 2024 14 0 0
Feb 2024 16 1 1
Mar 2024 9 0 0
Apr 2024 23 0 0
May 2024 7 0 0
Jun 2024 0 0 0