Facebook Instagram Twitter RSS Feed PodBean Back to top on side

STRUCTURAL HISTORY OF THE PORVA BASIN IN THE NORTHERN BAKONY MTS (WESTERN HUNGARY): IMPLICATIONS FOR THE MESOZOIC AND TERTIARY TECTONIC EVOLUTION OF THE TRANSDANUBIAN RANGE AND PANNONIAN BASIN

In: Geologica Carpathica, vol. 52, no. 3
Ada Kiss - Balazs Gellert - Laszlo Fodor

Details:

Year, pages: 2001, 183 - 190
About article:
The authors made geological mapping and microtectonic measurements in the Northern Bakony Mts., around the Porva Basin. Using structural observations, a new structural-geological map was made for this area. Four tectonic phases were separated by the analysis of stress field. Map-scale neptunian dikes represent the Jurassic rifting episode. For this phase NNE-SSW tension was estimated. NW-SE compression of Albian (?) age resulted in gently dipping reverse and conjugate strike-slip faults. In the Ottnangian-Sarmatian (18.5–11 Ma) a strike-slip type stress field with NNW-SSE compression developed. This phase formed mainly NW-SE striking dextral and conjugate shorter sinistral strike-slip faults. NW-SE striking half-grabens formed along strike-slip or oblique-slip faults. Motion resulted in post-sedimentary tilting of the Eocene-Oligocene sequences toward the master faults. A late Miocene extensional phase with WNW-ESE tensional directions was also determined. During this phase the earlier half-grabens were reactivated, although with slightly different slip on boundary faults. Some of the young half-grabens are connected by transfer faults, which had a strike-slip character. Ottnangian-Sarmatian strike-slip faults occurred during the rifting phase of the Pannonian Basin, their main activity was coeval with important stretching in the northeastern Pannonian Basin. These relatively local strike-slip faults could accommodate differential extension between the northern and southern Pannonian Basin. On the other hand, the newly recognized Late Miocene tensional phase indicate, that the post-rift evolution of the Pannonian Basin was associated with considerable crustal extension.
How to cite:
ISO 690:
Kiss, A., Gellert, B., Fodor, L. 2001. STRUCTURAL HISTORY OF THE PORVA BASIN IN THE NORTHERN BAKONY MTS (WESTERN HUNGARY): IMPLICATIONS FOR THE MESOZOIC AND TERTIARY TECTONIC EVOLUTION OF THE TRANSDANUBIAN RANGE AND PANNONIAN BASIN. In Geologica Carpathica, vol. 52, no.3, pp. 183-190. 1335-0552.

APA:
Kiss, A., Gellert, B., Fodor, L. (2001). STRUCTURAL HISTORY OF THE PORVA BASIN IN THE NORTHERN BAKONY MTS (WESTERN HUNGARY): IMPLICATIONS FOR THE MESOZOIC AND TERTIARY TECTONIC EVOLUTION OF THE TRANSDANUBIAN RANGE AND PANNONIAN BASIN. Geologica Carpathica, 52(3), 183-190. 1335-0552.