Magnetic Fabric Signature within a Thrust Imbricate; an analogue modelling approach

Abstract

Three main components account for the deformation in fold-and-thrust belts (FTBs); layer-parallel shortening (LPS), folding, and thrusting. In FTBs, most structures like thrusts and folds can be mapped and analyzed with different techniques (e.g., Ramsay & Huber, 1983). However, in the absence of strain markers, penetrative strain (i.e., LPS), which is not always easy to quantify in the field, can also be quantified by focusing on an intrinsic property of the rocks, for example, their magnetic susceptibility. The anisotropy of magnetic susceptibility (AMS) has proven to be a useful tool to study strain in different tectonic regimes and lithologies (e.g.