The Sgurr Beag Slide within Moine rocks at Loch Eilt, Inverness-shire

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Abstract
The Sgurr Beag Slide is shown to be a syn- to late-tectonic movement zone of local F 3 age within a regionally developed five phase deformation sequence. It truncates both lithological units and a major F 3 synform, and is associated with the intensification of an F 3 crenulation fabric, the widespread development of boudinage and the tightening of interlimb angles of major and minor F 3 folds. The Moine rocks of the Glenfinnan and Morar Divisions on either side of the slide share the same pre-sliding history of deformation and metamorphism; they both contain minor F 2 folds with strongly developed axial planar mica foliations enhanced in pelitic lithologies by migmatitic segregations, together with less abundant minor F 1 folds. The slide is refolded by isoclinal major F 4 folds and by major open F 5 folds.