The Quarterly Journal of the Geological Society of London, Volumen 110

abundant Achnasheen agglomerates amphibolites andesites anticline Ard Bheinn Ardara bands basalts beds belt biotite calc-silicate calcareous Calcite-Mudstone Group Carboniferous Chalk Cherts clay Cleengort Coal coalfield complex core correlation Creeslough current-bedding dioritic dolomites Donegal east evidence exposed facies Fannich fault fauna feet felsite felspar fossils fragments garnet Geol Geological gneisses granite Greta grey Grit Hagab Hill horizon hornblendic Ingleton inliers intrusions Jurassic Lewisian limb limestone lineation lithological Loch Lower Maas major folds Meenalargan metadolerites migmatites miles Moine Series Morar Mulnamin nappe North-West occur Oolite Oolite Group outcrop pelitic permeation Pettigo plagioclase plunge pluton Posidonia Psammitic quarry quartz Quartzite radiolarite Red Measures regional metamorphism rocks sand Sandstone schists sedimentary sediments semi-pelitic Seminula shale Shamal Cherts shells siliceous sillimanite specimens strata Strath Bran stratigraphical structure succession syncline tectonic texture thick thin thrust tuffs types unconformity Upper Zone