Preliminary Report of the United States Geological Survey of Montana and Portions of Adjacent Territories: Being a ... Annual Report of Progress ..., Том 7, Част 1873U.S. Government Printing Office, 1874 |
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Често срещани думи и фрази
angle anticlinal archæan Arkansas basal base border cañon Carboniferous character clay coal coarse color Colorado composed conglomerate Cope Creek crest Cretaceous deposits dikes Eagle River east side eastern eastward edges 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 Mount Bross mountains nearly northwest occur outcrop Park range pass Peak Plate Platte portion posterior premolar probably quartz quartzites red sandstones region ridge rise River sandstone Sawatch range schists sedimentary beds sedimentary rocks shales shaly Silurian slope South Park southward species specimens station strata stream summit surface terraces Tertiary thickness tion trachyte Triassic upper valley veins vertical volcanic west side Width yellow