Crustal-scale extension in the central Pannonian basin

Z. Hajnal, B. Reilkoff, K. Posgay, E. Hegedus, E. Takacs, I. Asudeh, St Mueller, J. Ansorge, R. Deiaco

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Within the Hungarian segment of the Pannonian basin, a 100-km-long seismic reflection profile images the sedimentary fill of two major depressions and their associated crustal signatures. These deep (∼7000 m) subbasins are asymmetric half grabens, bounded along their western margins by low-angle crust-penetrating subparallel listric faults. The hanging walls are intensely fractured and comprise pre-Tertiary basement and upper-crustal rocks. The footwalls are formed by uplifted and ductilely deformed middle to lower crust. The crust is relatively thin (25-27 km) and decoupled by well-defined detachment faults. The Moho has a gentle northeasterly dip and a spatially variable seismic signature. The seismic images imply that the present crustal setting of the area was developed contemporaneously through the northeastward extension of the Pannonian basin.

Original languageEnglish
Pages (from-to)191-204
Number of pages14
JournalTectonophysics
Volume264
Issue number1-4
DOIs
Publication statusPublished - Oct 30 1996

Keywords

  • Crustal seismic
  • Extensional basin
  • Pannonian basin

ASJC Scopus subject areas

  • Geophysics
  • Earth-Surface Processes

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  • Cite this

    Hajnal, Z., Reilkoff, B., Posgay, K., Hegedus, E., Takacs, E., Asudeh, I., Mueller, S., Ansorge, J., & Deiaco, R. (1996). Crustal-scale extension in the central Pannonian basin. Tectonophysics, 264(1-4), 191-204. https://doi.org/10.1016/S0040-1951(96)00126-6