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Geological Society, London, Special Publications; 1996; v. 99; p. 265-282;
DOI: 10.1144/GSL.SP.1996.099.01.20
© 1996 Geological Society of London

Mathematical Modelling

Mathematical modelling of growth strata associated with fault-related fold structures

Stuart Hardy, Josep Poblet, Ken McClay & Dave Waltham

Fault Dynamics Project, Department of Geology, Royal Holloway University of London, Egham, Surrey TW20 OEX, UK

Previous geometric models of fault-related folding have been limited in their ability to model sedimentation contemporaneous with contractional deformation. Waltham’s 1992 general forward modelling equation allows more realistic models of sedimentation to be combined with mathematical models of fault-bend folding, fault-propagation folding and limb-rotation associated with detachment folding. Using average rates of fault slip and sedimentation derived from the literature, the mathematical models are used to predict stratal geometries associated with each of the major styles of fault-related folding in both sub-marine and sub-aerial settings. Both background sedimentation and local erosion, transport and deposition as a result of fold growth are modelled. Comparison is made with natural examples and the utility of growth strata architectures in the assessment of fault-fold kinematics assessed.





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T. d. Bezemer, H. Kooi, Y. Podladchikov, and S. Cloetingh
Numerical modelling of growth strata and grain-size distributions associated with fault-bend folding
Geological Society, London, Special Publications, 1998; 134: 381 - 401.
[Abstract] [PDF]