A late Caledonian breccia dyke swarm in Glen Creran, near Glen Coe in the Grampian Highlands

Abstract

SummaryA series of late Caledonian breccia dykes composed of Dalradian schist fragments are emplaced in the Leven Schists. The form and extent of the breccia dykes are described, and dilational and nondilational components identified as contributing to the space occupied by individual breccias. Fabrics and textures of the breccia material are related to transport mechanisms and later compaction. The breccias are considered to have evolved as fluidized systems.