Complex sentence: Foldbelts that are detached from overpressured shale will usually show presence of basinwardvergent thrust imbricates and associated folds, this is due to the relative strength and frictional behavior of the surrounding plastic shale.
Split into simpler sentences: Foldbelts that are detached from overpressured shale will usually show presence of basinward thrust and associated folds. This is due to the relative strength and frictional behavior of the surrounding plastic shale.