The Quarterly Journal of the Geological Society of London, Volumen 100

agglomerate anticline appears associated authors band base beds Carboniferous clay close Colonial compaction compression consists containing continuous Cross curve deposits depth described detailed developed direction district east evidence exposed exposures fault fauna feet field folding formation forms fossils Geol Geological Geological Survey Greenhow grey Grit Hill horizon important indicated interest known later lava less Limestone limit locality Lower material Middle miles mineral mining Miocene mudstones natural nearly occur origin outcrop phonolite placenta places Pleistocene possible present pressure probably Quarry recorded reef referred relation River rocks sand sandstone sediments seems seen Series shale shown side similar slope species specimens stage strata structure succession suggested surface thickness thin tuffs Upper valley Vein void-ratio yards zone