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Statistical Modelling of Fault Core and Deformation Band Structure in Fault Damage Zones
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 77th EAGE Conference and Exhibition 2015, Jun 2015, Volume 2015, p.1 - 5
Abstract
The study addresses statistical simulation of some observed structural features of complex faults zones, including fault core lenses and deformation distribution and thickness. Properties related to fault core lenses are modelled using stochastic methods taking into account their relation to known physical constraints (i.e. host rock stratigraphy and strain distribution). A similar approach based on their link to distance from the fault and fault throw is applied for modelling distribution of deformation bands. This algorithm reproduces spatial density distribution and clustering of deformation bands as observed in fault damage zones is proposed.
A statistical analysis and simulation of deformation bands’ thickness are performed. This analysis was used to study the impact of deformation band thickness on fluid flow (Rotevatn et al. 2013).