Handbook of Geological Terms and Geology

abundantly according acid alumina ANIMAL SCHEME arrangement augite beds bivalves bones calcareous called carbonate Carboniferous Chalk characterised chiefly clay coal Coal-measures colour compact composed consists containing contradistinction copper corals crust crustaceans crystalline crystals deposits Devonian earth Eocene extinct familiar term feet felspar fishes fissures formation fossil frequently fresh-water genera genus geological geologists gneiss granite granular Greensand heat hence the name hornblende igneous iron known Lias lignite lime limestone lithos Lower lustre magnesia manganese marine marls masses metallic mica mineral Miocene name given numerous occurring odous Old Red Sandstone Oolite organic oxide Paleozoic peculiar Permian peroxide plants plates Professor protoxide quartz Red Sandstone reptiles resemblance rocks salt sand schists shales shells silica Silurian soda soft species stems stone strata structure substance sulphate sulphur sulphuret surface teeth term applied Tertiary texture thick tion Triassic Upper usually variety vegetable veins vertebræ volcanic Wealden