Authors:
Gyöngyi Lelkes-Felvári Department of Mineralogy and Petrology, Hungarian Natural History Museum, Budapest H-1083 Budapest, Ludovika tér 2, Hungary

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Urs Klötzli Department of Geological Sciences, University of Vienna, Vienna Althanstr. 14, A-1090 Vienna, Austria

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U/Pb data on single zircons from acidic volcanics are presented from the Kékkút-4 borehole, Balaton Highland, Transdanubian Central Range, Pelso Mega-Unit. Generally accepted as Lower Permian in age, they were also considered - due to some metamorphic features - to belong to the metamorphic, Lower Paleozoic basement. Clear, elongated crystals of these thick, acidic volcanics are regarded as co-genetic magmatic products, supplying a U/Pb age of 291.4±4.7 Ma (Lower Permian), representing the first radiometric magmatic age-dating of Upper Paleozoic acidic volcanism in this tectonic unit.

  • Albani, R., Gy. Lelkes-Felvári, M. Tongiorgi 1985: First record of Ordovician fossiliferous (acritarchs) beds in Bakony Mts., Hungary. - Neues Jahrb. Geol. Pal. Abh., 170, pp. 45 - 65 .

    'First record of Ordovician fossiliferous (acritarchs) beds in Bakony Mts., Hungary ' () 170 Neues Jahrb. Geol. Pal. Abh. : 45 -65 .

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  • Cortesogno, L., G. Cassinis, G. Dallagiovanna, L. Gaggero, G. Oggiano, A. Ronchi, S. Seno, M. Vanossi 1998: The Variscan post-collisional volcanism in Late-Carboniferous-Permian sequences of the Ligurian Alps, Southern Alps and Sardinia (Italy): a synthesis. - Lithos, 45, pp. 305 - 328 .

    'The Variscan post-collisional volcanism in Late-Carboniferous-Permian sequences of the Ligurian Alps, Southern Alps and Sardinia (Italy): a synthesis ' () 45 Lithos : 305 -328 .

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  • Dudko, A., Gy. Lelkes-Felvári 1992: Variscan structure of the Transdanubian Central Range. - Inst. Geol. Publ. Hung., 1990, pp. 39 - 67 .

    'Variscan structure of the Transdanubian Central Range ' () 1990 Inst. Geol. Publ. Hung. : 39 -67 .

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  • Fazekas, V., Gy. Majoros, T. Szederkényi 1981 Late-Palaeozoic subsequent volcanism of Hungary. - In: S. Karamata, F. P. Sassi (Eds): IGCP No. 5 Newsletter 3, Beograd, pp. 61 - 69 .

  • Fülöp, J. 1990: Geology of Hungary, Palaeozoic I. - MÁFI, Budapest, 325 p. (In Hungarian.)

  • Kázmér, M., S. Kovács 1985: Permian-Paleogene paleogeography along the eastern part of the Insubric-Periadriatic Lineament system: evidence for continental escape of the Bakony-Drauzug unit. - Acta Geol. Hung., 28/1-2, pp. 71 - 84 .

    'Permian-Paleogene paleogeography along the eastern part of the Insubric-Periadriatic Lineament system: evidence for continental escape of the Bakony-Drauzug unit ' () 28 Acta Geol. Hung. : 71 -84 .

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  • Kebede, T., U. S. Klötzli, J. Kosler, T. Skiöld 2004: Understanding pre-Variscan and Variscan basement components of the central Tauern Window, Eastern Alps (Austria): constraints from new single zircon U-Pb geochronology. - Int. Journ. of Earth Sciences, accepted for publication.

  • Lelkes-Felvári, Gy. 1978: Petrographische Untersuchung einiger prä-permischen Bildungen der Balaton-Linie. - Geol. Hung. Ser. Geol., 18, pp. 195 - 295 .

    'Petrographische Untersuchung einiger prä-permischen Bildungen der Balaton-Linie ' () 18 Geol. Hung. Ser. Geol. : 195 -295 .

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  • Lelkes-Felvári, Gy., S. Kovács, Gy. Majoros 1984: Lower Devonian pelagic limestone in the borehole Kékkút-4. - MÁFI Évi Jel., 1982, pp. 289 - 315 .

    'Lower Devonian pelagic limestone in the borehole Kékkút-4 ' () 1982 MÁFI Évi Jel. : 289 -315 .

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  • Lelkes-Felvári, Gy., F. P. Sassi 1981: Outlines of the pre-Alpine metamorphisms in Hungary. - In: S. Karamata, F.P Sassi (Eds): IGCP No. 5, Newsletter 3, pp. 89 - 99 .

    Outlines of the pre-Alpine metamorphisms in Hungary , () 89 -99 .

  • Lelkes-Felvári, Gy., R. Sassi, G. Zirpoli 1994: Lithostratigraphy and Variscan metamorphism of the Paleozoic sequences in the Bakony Mountains, Hungary. - Mem. Sci. Geol., 46, pp. 303 - 312 .

    'Lithostratigraphy and Variscan metamorphism of the Paleozoic sequences in the Bakony Mountains, Hungary ' () 46 Mem. Sci. Geol. : 303 -312 .

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  • Stacey, J., S., J. D. Kramers 1975: Approximation of terrestrial lead isotope evolution by a two-stage model. - Earth and Planet. Sci. Letters, 26, pp. 207 - 221 .

    'Approximation of terrestrial lead isotope evolution by a two-stage model ' () 26 Earth and Planet. Sci. Letters : 207 -221 .

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  • Juhász, Á. 1962: A balatonfelvidéki permi homokkodblac;összlet kvarcporfír anyagának eredete (Origin of the quartz porphyry components in the Permian sandstones of the Balaton Highland). - Földt. Közl., 92/2, pp. 160 - 173 .

    'A balatonfelvidéki permi homokkodblac;összlet kvarcporfír anyagának eredete (Origin of the quartz porphyry components in the Permian sandstones of the Balaton Highland) ' () 92 Földt. Közl. : 160 -173 .

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  • Gyalog, L., I. Horváth (Eds) 2004: Geology of the Velence Hills and the Balatonfodblac;. Explanatory book of the geological map of the Velence Hills (1: 25 000) and the geological map of pre-Sarmatian surface of the Balatonfodblac;-Velence area (1: 100 000). - MÁFI, Budapest, 316 p.

  • Haas, J., (Ed.) 2001: Geology of Hungary. - Eötvös University Press, Budapest, 317 p.

    Geology of Hungary , () 317 .

  • Horváth,L., I., Ódor 1989: Contact metamorphic and metasomatic phenomena in the Polgárdi Limestone Formation (Transdanubia, Hungary). - MÁFI Évi Jel. 1987, pp. 137 - 143 .

    'Contact metamorphic and metasomatic phenomena in the Polgárdi Limestone Formation (Transdanubia, Hungary) ' () 1987 MÁFI Évi Jel. : 137 -143 .

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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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