Magnetic fabrics as strain markers in folded soft-sediment layers

We exploit the potential of magnetic fabrics acting as strain markers in folded layers, by analysing an exceptionally well-exposed, recent (<1 kyr) slump horizon unlithified lake deposits within Dead Sea basin. The ?3-m-long soft-sediment layer, together with underlying basal detachment, and ‘undeformed’ reference layer are extensively sampled (n = 97) for anisotropy susceptibility (AMS) analysis. This analysis reveals deformation which significantly different from detected layer. maximum axes (K1) show a hinge-parallel orientation, minimum (K3) trail orientations directed eastward parallel to direction downslope slumping toward depocenter In terms shape AMS, samples oblate, while majority fold backlimb oblate neutral, those forelimb hinge zones more prolate. postulate that shown AMS approximates well sections through ellipsoid suggesting serve invisible naked eye. created particles moving relative one another reorganising during hydroplastic deformation. Particles physically rotate zone, resulting shortening intermediate creation prolate shapes. combination two types (deposition deformation) increases intensity lineation due intersection primary secondary (foliations). Based on dense sampling scheme, we produce GIS-based interpolation maps spatial distribution parameters These compared data classical analyses, providing benchmark combining traditional structural methods analyses studying folding