The Structural Geology of the Moine Thrust Zone in Coulin Forest, Wester Ross

Abstract

In the Coulin Forest psammitic schists some 6000 feet thick, with infrequent politic horizons, overlie the Moine thrust : the rocks are the right way up and dip gently eastwards. The Moine outcrop has been divided into an eastern zone in which the rocks owe their structure and texture to regional metamorphism and a western zone in which the rocks exhibit the structural and metamorphic effects of the thrust movements. The structures in the western zone of the Moine and in the Torridonian and Lewisian below the Moine thrust are alike in style and orientation ; they are related to the thrust movements. The following movement history has been recognized in the rocks of the thrust zone :—