The Encyclopedia britannica; a dictionary of arts, sciences, and general literatureWith new maps, and original American articles by eminent writersWith American revisions and additions, bringing each volume up to date . ? ]? °tine<al basins or of the waters of the-uaone aunng alternating periods of submergence and emergence. •203 The Cirboniferous rocks, and most of .!«. succeeding rormatmnvare exposed m two widely separated portions of .hi Slate, different lithoIogical and faunal aspects. The mutual reitions of these series have never been traced The hrst , central
The Encyclopedia britannica; a dictionary of arts, sciences, and general literatureWith new maps, and original American articles by eminent writersWith American revisions and additions, bringing each volume up to date . ? ]? °tine<al basins or of the waters of the-uaone aunng alternating periods of submergence and emergence. •203 The Cirboniferous rocks, and most of .!«. succeeding rormatmnvare exposed m two widely separated portions of .hi Slate, different lithoIogical and faunal aspects. The mutual reitions of these series have never been traced The hrst , central region between 97° and lOO W ,0, north of .heColorado nvei. and consists of clays, sandstones conglomerates,limestones, and coal seams of workable thickness It is the south!western prolongation and termination of the Coal-measures of theTfl! 1J; r—r-—• g . ,-. Geological map ol Ttr\aseastern United States Theserocks, although m general similar icthein, differ in some respects from those of the same formationlurther east, and also exhibit a few resemblances to the strictlymarine Carboniferous of the Rocky Mountain region (k) To the-other series belongs the traus-Pecos Carboniferous (k). Althoughthis IS of the same geologic age as the eastern Coal-measures it ,»a purely marine deposit of limestones and sandstones, and is barrenot vegeuble remains. It is exposed along the Ouadalupe and othermountains of the trans-Pecos region, forming the most easternoutcrops of the non-coal-bearing Carboniferous of the west of the areal distribution and relation of the strata interveningbetween the Carboniferous and the fully-identihed Cretaceous miexas has not been begun The Permian. Triassic, and Jurassic11 they exist, have not been clearly diagnosed. althou»h ihes^names have been applied to the scnes of rocks west of thi centralCarboniferous re
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Keywords: ., bookcentury1800, bookdecade1890, bookidencyclopedia, bookyear1892
