Contrasted Styles of Folding in the Rocks of Ord Ban Mid-Strathspey

Abstract

On Ord Ban, quartzite in superposed recumbent folds trending northwest. The reasons for distinguishing between these two styles of folding are given, and the characters of the two styles are contrasted. A fold in quartzite and a fold in marble are described in detail, and kinematic interpretations are attempted. It is concluded that evidence of an early deformation involving mylonitization has been preserved in the quartzite, and that the latest tectonic event distinguishable was the production of the monoclines with attendant twinning of calcite and dolomite.