Seismic stratigraphy of the Late Miocene sequence beneath Lake Balaton, Pannonian Basin, Hungary

Marco Sacchi, Renato Tonielli, Péter Dövényi, Ferenc Horváth, Orsolya Magyari, Tibor Cserny, Thomas M. McGee, Lorenzo Mirabile

Research output: Contribution to journalArticle

14 Citations (Scopus)


This study is based on the interpretation of about 190 km of high-resolution, single-channel reflection seismic prolifes acquired on Lake Balaton during the GMS93-02 cruise in June of 1993. The seismic survey investigated the lakes subsurface at a maximum depth of about 200 msec down to the acoustic basement, which is represented by Sarmatian (Serravallian) strata. Seismic interpretation showed that the Balaton Quatemary deposits rest above a subhorizontal unconformity marks a major stratigraphic gap that practically encompasses the whole Pliocene and most of the Pleistocene. The Pannonian sequence in turn uncomformably overlies Sarmatian limestone and marl at a depth of 50 to 200 m. Sarmatian strata are truncated at the top by a mature (polycyclic) erosional surface that marks a stratigraphic gap spanning a few million years (about 12 to 9 Ma) and includes the amalgamation of two 3rd-order (with 106 year periodicities) sequence boundaries. These are the top of the Sarmatian sequence (Sar-1 SB) and the top of the lowermost Pannonian 3rd-order sequence (Pan-1 SB). Incised valleys with erosional terrace and channel fills are also recognized from the seismic record.

Original languageEnglish
Pages (from-to)63-88
Number of pages26
JournalActa Geologica Hungarica
Issue number1
Publication statusPublished - Dec 1 1998


ASJC Scopus subject areas

  • Geology

Cite this

Sacchi, M., Tonielli, R., Dövényi, P., Horváth, F., Magyari, O., Cserny, T., McGee, T. M., & Mirabile, L. (1998). Seismic stratigraphy of the Late Miocene sequence beneath Lake Balaton, Pannonian Basin, Hungary. Acta Geologica Hungarica, 41(1), 63-88.