The Quarterly Journal of the Geological Society of London, Volumen 116

abundant albite analyses andalusite andesites anhydrite anticline associated augite aureole basalt batholith Beds biotite block Borrowdale Volcanic Bosche breccias calcareous calcite Cambrian Carboniferous chlorite cleavage composition conglomerate crystals deposits developed dolerite down-bulges evidence exposed facies feet feldspar feldspar-rich band felsite folds formation fossils fractures fragments Front Ranges gabbro Gars-bheinn Geol Geological grains granite granodiorite granophyre groundmass hornblende igneous inlier intrusive tuffs joints kyanite lavas limestones Lower magma Main Anhydrite margin marl matrix metamorphism Miette miles minerals Mountains movement mudstones Mweelrea normal faults north-east north-west occur olivine Ordovician outcrop pelitic phenocrysts pillow plagioclase pumpellyite quartz quartzite reefs region Rhum rocks Sandstone schists sedimentary sediments Series Shales shear Sheefry Grits Shucknall sill siltstones Silurian Skiddaw Slates Sleaves Oak south-west sphene spilites structures suggested surface syncline tectonic texture thick thin thrust trend tuffs Ullswater Upper Woolhope wrench-faults xenoliths zone