Proceedings of the Geologists' Association, Band 77

abundant anticline Antiform Association axial plane B.SC Ballyshannon bands Basin beds Boscastle Calcaire calcite Cambrian Carboniferous Limestone chalk clay cleavage cliff coach correlation craters crinoidal Dearman deltaic deposits described Devonian Director dolomite dolomitisation dykes early folds east erosion evolution evolutionary exposed facies faults fauna Field Meeting Foraminifera formation forms fossil record Geological grains gravel Grès grey hypersthene isoclines Jl geol Lewisian limb lineation lithoclasts lithology Loch Loch nan Uamh Lond London Lower lunar surface marine meteoritic metres micronorite Millstone Grit minerals moon Morar mudstone occur oolitic orthonorite ostracods outcrop party pebbles Pelitic Pelitic Group phase plagioclase Point Precambrian Proc Psammitic Group quarry quartz ridge rocks sand sandstone sedimentary sediments seen sequence shales shells Simpson South Wales south-east species stratigraphical structures succession suggested syncline tectonic thick thin trend Upper wrinkle ridges xenoliths zigzags Zone