Proceedings of the Geologists' Association, Band 94

ammonite Anglesey assemblage Barremian basal base Basin Beds Ben Loyal biozone Borehole boulders Brimpton Caesar's Camp Gravel Cambrian Chalk chert cliff corals correlation Crag deposits Devensian East England evidence facies fault fauna flint folds Formation fossils fragments Geol Geological Sciences Gibbard glacial glauconite grains granite greywacke Group Gwna horizon Inner Hebrides Institute of Geological Interstadial Jurassic kaolinite limestone lithologies Lond London Clay Lower margin melange metamorphic mineral Monian Mutabilis Zone occur ophiolite outcrop outliers Palaeogene pebbles Penmynydd phacoids Pleistocene pollen Proc Quarry quartz quartzite Rasenia recorded represented river rocks rudite samples Sand and Gravel Sandstone sedimentary sediments sequence shale shell Shellingford Shotton silcretes silt siltstone silty species Speeton Spilsby strata stratigraphical structures subduction suggested surface Surv tectonic terrace Tertiary Thanet thick tion units Upper valley volcanic weathering West Westbury