The Elements of Geology: Adapted to the Use of Schools and Colleges

abundant accumulation action American amount animal argillaceous argillaceous slate become carbonate carboniferous causes change of level character clay climate cloth coal color consists contains coral cretaceous crust crystalline denudation deposited depth dikes earth earthquake earthy matter effect elevation England English eruption evidence existence extend felspar force formation fossils fracture furnished geological glacier gneiss granite greensand heat Hence hornblende Hugh Miller hundred feet Hypersthene igneous igneous rocks Illustrations instances islands land lava layers limestone marine currents mass materials melted metamorphic metamorphic rocks mica miles mineral mountain nearly occur ocean Old Red Sandstone oölite particles peculiar phenomena portion present principal probably produced red sandstone regions river sand schools SECTION sediment sedimentary shales silurian slate solid solidified species specific gravity strata stratified rocks structure subsidence substances surface teacher temperature tertiary period thickness thousand feet tion valley vegetable veins volcanic rocks volume