Bulletin of the Geological Society of America, Volumes 11-20

abstract Acknowledgments Aftonian Alaska Allegheny formation Analysis Basin ranges Brazil California Cambrian Canada canyon Carboniferous Catalog Character and extent Character and occurrence Character and thickness cited on age clastic clastic dikes coal bed Coal Measures Colorado composition Conemaugh formation conglomerate Cordilleran Section Correlation crater creek Cretaceous Dakota deposits Description Devonian Distribution district elected Fellow fauna fossils Geologic glacial erosion glacial lake glacier granite gravels Hanging valleys hornblende Kentucky Lake Superior Leucite limestone Manhattan island Map showing Minnesota Montana Nevada Oahu Occurrence and character Occurrence and thickness Ohio Ontario Ordovician origin Oriskany Paleozoic peneplain Pennsylvania photographs Pleistocene Pocono formation Pottsville Pottsville formation pre-Cambrian quadrangle quartzite quoted Record of remarks Red beds reefs Reference river Rocky Mountain region San Gabriel mountains schists shale Silurian Silver Peak Stratigraphic Stratigraphic place structure syenite Synonymy Tennessee Tertiary Title of paper Topography Uinta Unconformity Upper Yukon View showing volcanic West Virginia Wyoming York