Preliminary Report of the United States Geological Survey of Montana and Portions of Adjacent Territories: Being a ... Annual Report of Progress ..., Volume 7, Part 1873U.S. Government Printing Office, 1874 - Geology |
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Common terms and phrases
angle anticlinal archæan Arkansas basal base borders cañon Carboniferous character clay coal coarse color Colorado composed conglomerate Cope Creek crest Cretaceous débris deposits dikes Eagle River east side eastern eastward edge elevation Eocene erosion extending feet flora Fork formation fossils fragments genus geological gneiss gorges granite gray Gulch Hayden hills inches inclining Jurassic Lake layers Leidy Length Lignitic limestone lobe lode lower mass massive metamorphic Middle Park miles millimeters Miocene molar Mount Bross mountains nearly northeast northwest occur outcrop pass Peak Plate Platte portion posterior premolar probably quartz quartzites red sandstones region ridge rise River sandstone Sawatch Sawatch range schists sedimentary beds sedimentary rocks shales shaly Silurian slope South Park southward species specimens station strata stream summit surface teeth terraces Tertiary thickness tion trachyte Triassic upper valley veins vertical volcanic west side Width yellow


