Quantitative reconstruction of the temporal evolution of stress in the Dutch basins

• Antragsteller: Professor Dr. Janos L. Urai (†)
• Fachliche Zuordnung: Paläontologie
• Förderung: Förderung von 2005 bis 2007
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 5450029

Changing stress fields through geological time were related to a wide range of processes in the Central European Basin (CEB): generation and reactivation of faults, changing patterns of sedimentation, retention and leakage of fluids for example. Based on 3D fault patterns and palinspastic reconstruction, we propose to carry out stress inversion analyses for selected horizons in a numer of areas. Our study is based on Nederlandse Aardolie Maatschappij¿s 3D seismic database, selecting domains in which the stress field at the time of interest is homogeneous. We will concentrate on four key time periods: the M. Tertiary and U. Cretaceous/L. Tertiary, the Jurassic, and the Triassic Buntsandstein. Active faults from these time periods will be selected and their 3D fault kinematics will be analysed. Fault morphology and kinematics will be used to determine the regional stress using the Angelier Method (1990). Comparion of the domain data will alow the reconstruction of the major far-field stresses active during the deposition of the CEB. Our results will provide: 1) An improved model of the dynamic evolution of the CEB in the areas studied, 2) a better understanding of the processes of tectonic inversion, and the interaction of salt tectonis and regional stress fields in the CEB.

• DFG-Verfahren: Schwerpunktprogramme
• Teilprojekt zu: SPP 1135: Dynamik sedimentärer Systeme unter wechselnden Spannungsregimen am Beispiel des zentraleuropäischen Beckensystems
• Beteiligte Person: Professor Peter Kukla, Ph.D.