Authors:
Pauline Convert Université de Strasbourg 1, Ecole et Observatoire, des Sciences de la Terre 67084 Strasbourg Cedex, rue René Descartes 5, France

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Em? Márton Eötvös Loránd Geophysical Institute of Hungary H-1145 Budapest, Columbus u. 17-23, Hungary

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János Haas Department of Geology, Academical Research Group, Eötvös Loránd University, Budapest H-1117 Budapest, Pázmány Péter sétány 1/C, Hungary

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Eperkés Hill is a thoroughly studied classic exposure, yet its facies interpretation is still debated. The issue is whether Upper Triassic - lowermost Jurassic carbonates are regular beds or blocks embedded within the Kimmeridgian-Berriasian limestone. The answer to this question is important for the interpretation of the structural evolution and paleogeography of the Transdanubian Range area at the Jurassic-Cretaceous boundary; we decided therefore to contribute to the solution by applying paleomagnetism to the problem.  We tested several regular beds and suspected olistoliths from two artificial exposures. In order to check the consistency of the paleomagnetic signal on site level, we drilled three or more cores from each, and subjected them to standard paleomagnetic laboratory processing and evaluation.  We found that magnetic parameters were distinctly different for "regular" beds and for suspected olistoliths, but that the paleomagnetic signal was consistent within every site. However, between-site consistency was extremely high for regular beds, but was non-existent for the "megabreccia" horizon. Thus, our results confirm that older limestone was moved and re-deposited during the Late Jurassic-Early Cretaceous, indicating geodynamic conditions similar to those in the Northern Calcareous Alps.

  • Bárány, M. 2004: A jura-kréta határ gravitációsan átülepített képződményei az Északi-Gerecsében (Gravitationally resedimented formations of the Jurassic-Cretaceous boundary in the Northern Gerecse Mts). - Diplomamunka, ELTE TTK Regionális Földtani Tanszék, 72 p.

    A jura-kréta határ gravitációsan átülepített képződményei az Északi-Gerecsében (Gravitationally resedimented formations of the Jurassic-Cretaceous boundary in the Northern Gerecse Mts) , ().

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  • Császár, G. 1988a: Bakony, Olaszfalu, Eperkés Hill, Long trench, Section EH-1 Geological Key Sections of Hungary. - MÁFI, 6 p.

    'Bakony, Olaszfalu, Eperkés Hill ' () Long trench Section EH-1 Geological Key Sections of Hungary. - MÁFI : 6 .

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  • Császár, G. 1988b: Bakony, Olaszfalu, Eperkés Hill, Large exposure, Section EH-2 Geological Key Sections of Hungary. - MÁFI, 6 p.

    'Bakony, Olaszfalu, Eperkés Hill ' () Large exposure Section EH-2 Geological Key Sections of Hungary. - MÁFI : 6 .

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  • Császár, G., J. Mizák 2002: Az Eperjes földtani felépítése és fejlődéstörténete (Geology and geological history of the Eperjes Hill). - In: Császár (Ed.): Az Eperjes-hegy élettelen és élővilága. ELTE, Budapest, pp. 7-14. (In Hungarian.)

    Az Eperjes földtani felépítése és fejlődéstörténete (Geology and geological history of the Eperjes Hill) , () 7 -14 .

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  • Fisher, R. 1953: Dispersion on a sphere. - Proc. Roy. Soc. London Ser. A.217, pp. 295-305.

    'Dispersion on a sphere ' () 217 Proc. Roy. Soc. London Ser. A. : 295 -305 .

  • Fülöp, J. 1964: A Bakonyhegység alsó-kréta (berriázi-apti) képződményei (Lower Cretaceous [Berriasian-Aptian] formations of the Bakony Mts). - Geol. Hung. Ser. Geol., 13, 194 p.

    'A Bakonyhegység alsó-kréta (berriázi-apti) képződményei (Lower Cretaceous [Berriasian-Aptian] formations of the Bakony Mts) ' () 13 Geol. Hung. Ser. Geol. : 194 .

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  • Fülöp, J. 1976: The Mesozoic basement horst blocks of Tata. - Geol. Hung. Ser. Geol., 16, 228 p.

    'The Mesozoic basement horst blocks of Tata ' () 16 Geol. Hung. Ser. Geol. : 228 .

  • Galácz, A. 1988: Tectonically controlled sedimentation in the Jurassic of the Bakony Mountains (Transdanubian Central Range, Hungary). - Acta Geol. Hung., 31, pp. 313-328.

    'Tectonically controlled sedimentation in the Jurassic of the Bakony Mountains (Transdanubian Central Range, Hungary) ' () 31 Acta Geol. Hung. : 313 -328 .

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  • Galácz, A. 1989: Eperkés Hill - Upper Jurassic pelagic sequence with synsedimentary megabreccia and Lower Cretaceous cover. - In: Császár (Ed.): Excursion Guidebook. IAS Tenth Regional Meeting, MÁFI, Budapest.

    'Eperkés Hill - Upper Jurassic pelagic sequence with synsedimentary megabreccia and Lower Cretaceous cover ' , , .

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  • Haas, J., S. Kovács, L. Krystyn, R. Lein 1995: Significance of Late Permian-Triassic facies zones in terrane reconstructions in the Alpine North Pannonian domain. - Tectonophysics, 242, pp. 19-40.

    'Significance of Late Permian-Triassic facies zones in terrane reconstructions in the Alpine North Pannonian domain ' () 242 Tectonophysics : 19 -40 .

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  • 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 .

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  • Konda, J. 1970: A Bakony hegységi júra időszaki képződmények üledékföldtani vizsgálata (Sedimentary investigations of the Jurassic formations of the Bakony Mts). - MÂI Évkönyv, 50, pp. 161-260.

    'A Bakony hegységi júra időszaki képződmények üledékföldtani vizsgálata (Sedimentary investigations of the Jurassic formations of the Bakony Mts) ' () 50 MÂI Évkönyv : 161 -260 .

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  • Márton, E., P. Márton 1983: A refined apparent polar wander curve for the Transdanubian Central Mountains and its bearing on the Mediterranean tectonic history. - Tectonophysics, 98, pp. 43-57.

    'A refined apparent polar wander curve for the Transdanubian Central Mountains and its bearing on the Mediterranean tectonic history ' () 98 Tectonophysics : 43 -57 .

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  • 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 .

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  • Mizák, J. 2002: Az olaszfalui Eperjes üledékhézagainak vizsgálata földtani térképezés, természetvédelem (Investigation of the sedimentary hiatuses on Eperjes Hill, Olaszfalu, geological mappping, nature conservation). - University thesis, ELTE TTK Regionális Földtani Tanszék, 116 p. (In Hungarian.)

  • Palotai, M., L. Csontos, P. Dövényi, A. Galácz (in press): Felső-jura áthalmozott képződmények az olaszfalui Eperkés-hegyen (Upper Jurassic reworked formations on Eperkés Hill, Olaszfalu). - Földt. Közl.

    'Felső-jura áthalmozott képződmények az olaszfalui Eperkés-hegyen (Upper Jurassic reworked formations on Eperkés Hill, Olaszfalu) ' () Földt. Közl. .

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  • Vörös, A., A. Galácz 1998: Jurassic paleogeography of the Transdanubian Central Range (Hungary). - Riv. Ital., Paleont., Strat., 104, pp. 69-84.

    'Jurassic paleogeography of the Transdanubian Central Range (Hungary) ' () 104 Riv. Ital., Paleont., Strat. : 69 -84 .

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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)

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