A regional, S-dipping late Early to Middle Ordovician palaeoslope in the Brabant Massif, as indicated by slump folds (Anglo-Brabant Deformation Belt, Belgium)

Within the upper Lower to Middle Ordovician directly north of the Quenast plug (Senne valley, Brabant Massif) numerous pre-cleavage folds and associated detachments occur. These folds and the associated detachments are attributed to slumping. On the basis of a combination of a) the mean axis method, b) the separation arc method, c) the axial-planar intersection method and d) the fold hinge azimuth and interlimb angle method a SSE-dipping palaeoslope is inferred from these Slump features. This is fully compatible with the palaeoslopes inferred by two previous studies on slump folds in other upp... Mehr ...