Click to view page image in pdf format.
7th Middle East Geosciences Conference and Exhibition
Manama, Bahrain
March 27-29, 2006
Salt
Tectonism and Sedimentation to Changing Regional Stress Fields
1 Geological Institute, RWTH Aachen University, Wuellnerstr. 2, 52062 Aachen, Germany, phone: +49 241
8095720, [email protected]
2 Geological Institute, RWTH Aachen University, Aachen, Germany
3 Geologie-Endogene Dynamik, RWTH Aachen University, Lochnerstrasse 4-20, D-52056 Aachen,
Germany
Salt
tectonics plays a major role in many sedimentary basins. One of the classic areas of
salt
tectonism is the Central
European Basin hydrocarbon province were mobile Permian Zechstein
salt
formed a large number of
salt
walls, diapirs and
pillows each formed by a distinctive interaction of tectonism and sedimentation. Our study is the first which quantitatively
relates the Paleozoic to present day kinematics of the basin,
salt
diapirism and sedimentary response. We use seismic
interpretation
, based on prestack depth-migrated 2D and 3D seismic data, and retro-deformation to obtain a better
understanding of
salt
tectonics, structural control, and sedimentary response in the german part of the basin.
Several
salt
wedges formed by lateral extrusions during periods of diapir emergence and reduced sediment accumulation
can be identified. High resolution mapping and well-log analysis of the sedimentary stacking patterns displays the effects of
syn-sedimentary
salt
movement that is consistent with the regional sedimentary, structural and stratigraphic framework.
These near-diapir sequences which distinctly record
salt
-sediment interaction bear a number of potential hydrocarbon traps
and present an excellent model for other
salt
-rich hydrocarbon systems.
Better understanding of the structural, sedimentary and
salt
tectonic evolution and improved knowledge of the position and
amount of
salt
has furthermore effects on seismic modelling and depth conversion and advances the prediction of potential
reservoirs in the sub-
salt
sequences.