STRESS-CONTROLLED CLEAVAGE IN CONICAL FOLDS
In this study, 3D visco-elastic finite element analysis is used to investigate the mechanism of conical fold initiation and to document the resulting stress field. The models are based on a setup of a competent layer embedded in a less competent matrix subjected to oblique slip to the strike of the bedding. Several sensitivity analyses are conducted to investigate the role of geometrical input parameters, material properties and model boundary conditions on the resulting geometrical shape and stress distribution of conical folds. Based on these results the conical fold geometry in the outcrop of the Windsor Township Formation is simulated and the local stress orientations compared to the cleavage orientation.