Strike-slip tectonics and Quaternary basin formation along the Vienna Basin fault system inferred from Bouguer gravity derivatives

作者: B. C. Salcher , B. Meurers , J. Smit , K. Decker , M. Hölzel

DOI: 10.1029/2011TC002979

关键词: Bouguer anomalyPaleontologyTectonicsFault (geology)SeismologySubsidenceStrike-slip tectonicsGravity anomalies of Britain and IrelandGeologyStructural basinPull apart basin

摘要: [1] The Vienna Basin at the transition between Alpine and Carpathian belt hosts a number of large Pleistocene sub-basins forming along an active continental scale strike-slip fault (Vienna fault). We utilize first-order derivatives from industrial Bouguer gravity data to unravel impacts kinematics on compensate for lack near-surface data. Anomalies have been evaluated by independent geophysical geological were integrated build up tectonic model. Factors influencing wavelength amplitude anomalies additionally investigated 2-D models better interpret field Subsidence related accumulation Quaternary sediments in produce significant signals activity fault. The constrained patterns structures highlight tight elongated transtensional pull-apart basins with typically associated features like separated depocenters Riedel fractured sidewalls en-echelon alignment. Further are highlighted as grabens developing branches master is affected minor deformation represented both subsidence major Miocene NW-SE faulting resulting distinct topographic features, which manifests regional scale. clear density contrasts marine terrestrial sediments, well exceptional database, provide unique framework demonstrate advantages incorporating analysis.

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