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The Appalachian Region: Paleozoic Appalachia, Or the History of Maryland ...
No preview available - 2017
accumulation adjacent anticline Appalachian Mountains Appalachian province Appalachian Valley Atlantic BAILEY WILLIS basin beach beds beneath calcareous carbonate Carboniferous chemical clay clayey coarse coarser coast coastal plain compression conglomerate continent continental corresponding crystalline currents deformation deposits depth detritus Devonian highlands Devonian period distribution downfolds early Cambrian earth's crust eastern eastward effects elevation episode epoch eroded erosion estuaries extent feet thick folding formation fossils gentle geologic granites HISTORY OF MARYLAND horizontal movement interior sea later lime limestone lowland margin mass Mauch Chunk mediterranean mediterranean sea migration miles minerals occur ocean Oriskany oxide Paleozoic pebbles plain of Appalachia plane plateau Pottsville pre-Cambrian probably quartz quartzose relations result rivers rocks sands sandstone schists sea-bottom sedi sedimentary sediments shallow waters shore Sideling Hill slope strait strata stratum streams submergence subsidence succeeding surface thin tion trough unconformity uplift upper Silurian Valley vertical movement volume warped waves westward zone