Bulletin of the Geological Society of America, Volume 30The Society, 1919 - Geology Vols. for 1938-61 include as pt. 2 of the December issue the Society's Abstracts, later published separately. |
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Abstract Amazon American Journal Archean Bahia basin Brasilien Brazil Brazilian Brésil Bulletin Canada Carboniferous Ceará clays climate coal Council County Cretaceous D. C. Dec December deposits Derby Devonian Economic geology Engineers Estado fauna feet flora formation fossils geography Geol geologic map Geological Society glacial GORCEIX Hall Hamilton Ithaca J. C. BRANNER Journal of Science Kansas limestone Lisboa London lower marine Maryland Matto Grosso Minas Geraes mineral Mining Missouri Geological Survey Museum Natural History Oliveira Ouro Ouro Preto paginas paleontology Paleozoic paper Pará Paraná Paulo Permian Pernambuco plates present Professor Provincia quartzites region Relatorio Report Revista Rio de Janeiro Rio São Francisco River rocks sandstone Santa Catharina São Paulo sediments Serra shales Sherburne Silurian Society of America species Tertiary tion Triassic U. S. Geological Survey United States Geological University Upper Valley volume Washington WILLIAM York


