A Geological Map of the United States, and the British Provinces of North America: With an Explanatory Text, Geological Sections, and Plates of the Fossils which Characterize the FormationsGould and Lincoln, 1853 - 92 Seiten |
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Häufige Begriffe und Wortgruppen
abundant Agassiz Alabama Alleghanies basin Bay of Fundy Beaumont beds belonging Brachiopod Brong Brunswick Cape Breton Carboniferous chain of mountains characteristic circle of comparison clay coal color composed conglomerate cretaceous cretaceous group CYCLOPÆDIA deposits Devonian direction division earth England Eocene epoch extends felspar formation fossiliferous rocks fossils France Gaspé geographical geological map Geological Survey geologists globe granitic Green Mountains igneous rocks immense Island Jersey Jurassic Kentucky Lake Superior Lawrentine limestone Lower Canada Lower Silurian Magdalen Islands Messrs metamorphic rocks Michigan mineral Mississippi Missouri modern rocks Mollusk moun Newfoundland North America Notre Dame Mountains Nova Scotia observations Ohio oölitic Owen paleozoic parallel Pennsylvania points Potsdam present quaternary recognized Red Sandstone regions River Rocky Mountains Russia sand schist silicate slate species of Brachiopod Spirifer strata surface system of dislocation systems of mountains tains Tennessee tertiary tion Upper Silurian Virginia Wisconsin York
Beliebte Passagen
Seite 91 - A geological and agricultural survey of the district adjoining the Erie canal in the state of New York.
Seite 21 - Its thickness varies with the different localities in which it is found, and depends on the more or less horizontal position of the bed ; nevertheless it may be said to vary from five hundred to two thousand feet.