Travels in North America in the Years 1841-2: With Geological Observations on the United States, Canada and Nova Scotia, Volumes 1-2Wiley and Putnam, 1845 |
Vanuit het boek
Resultaten 1-5 van 71
Pagina 12
... clay when drying . These appearances , together with imbedded fragments of carbonized fossil wood , such as may have been drifted on a beach , be- speak the littoral character of the formation on which , in many places in Connecticut ...
... clay when drying . These appearances , together with imbedded fragments of carbonized fossil wood , such as may have been drifted on a beach , be- speak the littoral character of the formation on which , in many places in Connecticut ...
Pagina 19
... clay , and presents a steep slope to the north and south , affording an excellent road , like the sand - ridges or osars which I have seen in Sweden , and which are doubtless of similar origin . ' Geologists are all agreed that these ...
... clay , and presents a steep slope to the north and south , affording an excellent road , like the sand - ridges or osars which I have seen in Sweden , and which are doubtless of similar origin . ' Geologists are all agreed that these ...
Pagina 33
... clay ( f , fig . 1. ) , which is sometimes within a few yards of the top of the precipice , and sometimes again retires eighty yards or more from it , being from twenty to fifty feet in height . I also found an old river - bed running ...
... clay ( f , fig . 1. ) , which is sometimes within a few yards of the top of the precipice , and sometimes again retires eighty yards or more from it , being from twenty to fifty feet in height . I also found an old river - bed running ...
Pagina 50
... clay iron - stone ; and the whole series resting on a coarse grit and conglomerate , containing quartz pebbles , very like our Millstone Grit , and often called by the American as well as the English miners the " Farewell Rock ...
... clay iron - stone ; and the whole series resting on a coarse grit and conglomerate , containing quartz pebbles , very like our Millstone Grit , and often called by the American as well as the English miners the " Farewell Rock ...
Pagina 68
... anthracite , at first widely separated , were brought nearer and nearer to- gether , until they united , and formed one mass about fifty feet thick , without any greater interpolated matter than two thin layers of clay with Stigmariæ . At.
... anthracite , at first widely separated , were brought nearer and nearer to- gether , until they united , and formed one mass about fifty feet thick , without any greater interpolated matter than two thin layers of clay with Stigmariæ . At.
Overige edities - Alles bekijken
Travels in North America in the Years 1841-2: With Geological ..., Volumes 1-2 Sir Charles Lyell Volledige weergave - 1845 |
Travels in North America in the Years 1841-2: With Geological ..., Volumes 1-2 Sir Charles Lyell Volledige weergave - 1845 |
Travels in North America: With Geological Observations on the ..., Volume 2 Charles Lyell Geen voorbeeld beschikbaar - 2016 |
Veelvoorkomende woorden en zinsdelen
Alleghany Alleghany mountains alluded American ancient anthracite Appalachian appears Atlantic banks Bay of Fundy beds Boston British called Cape Breton carboniferous CHAP clay cliffs coal coal-field coal-measures coloured corals cretaceous denudation deposits Devonian district drift England Eocene Europe European examined Falls feet thick ferns forest fossil fossiliferous Frostburg furrows geological geologists gneiss granite gypsiferous gypsum height hypogene inches Indian Island Joggins Lake Erie Lake Ontario land lectures Lepidodendron limestone marine marl mass mastodon ment miles Minudie Miocene mountains nearly negroes Niagara Nova Scotia observed Ohio origin Pecopteris Pictou plants present Professor railway recent red sandstone region remarkable ridges river rocks sand seams seen shale shells Shubenacadie side Silurian slaves South Joggins species Stigmaria strata surface tertiary tion traveller trees tutors upper valley Virginia Windsor wood York СНАР
Populaire passages
Pagina 27 - An examination of the geological structure of the district, as laid open in the ravine, shows that at every step in the process of excavation, the height of the precipice, the hardness of the materials at its base, and the quantity of fallen matter to be removed, must have varied. At some points it may have receded much faster than at present, but in general its progress was probably slower, because the cataract, when it began to recede, must have had nearly twice its present height, and therefore...
Pagina 146 - I found another set of similar furrows, having the same general direction within five degrees ; and I made up my mind that, if these grooves could not be referred to the modern instrumentality of ice, it would throw no small doubt on the glacial hypothesis. When I asked my guide — a peasant of the neighborhood — whether he had ever seen much ice on the spot where we stood...
Pagina 114 - ... Dismal," and is no less than forty miles in length from north to south, and twenty-five miles in its greatest width from east to west, the northern half being situated in Virginia, the southern in North Carolina. I observed that the water was obviously in motion in several places, and the morass had somewhat the appearance of a broad inundated river-plain, covered with all kinds of aquatic trees and shrubs, the soil being as black as in a peatbog.
Pagina 115 - I learnt of this singular morass. It is one enormous quagmire, soft and muddy, except where the surface is rendered partially firm by a covering of vegetables and their matted roots ; yet, strange to say, instead of being lower than the level of the surrounding country, it is actually higher than nearly all the firm and dry land which encompasses it, and, to make the anomaly complete, in spite of its semi-fluid character, it is higher in the interior than towards its margin.
Pagina 146 - Parrsborough, and that the icy blocks, heaped on each other, and frozen together or ' packed,' at the foot of Cape Blomidon, were often fifteen feet thick, and were pushed along when the tide rose, over the sandstone ledges. He also stated that fragments of the
Pagina 131 - ... marshes. Thus at Beauly, I found upright stumps of trees of the pine, cedar and ilex, covered with live oysters and barnacles, and exposed at low tides; the deposit in which they were buried having been recently washed away from around them by the waves.
Verwijzingen naar dit boek
The Kansas Historical Quarterly, Volume 7 Kirke Mechem,James Claude Malin Geen voorbeeld beschikbaar - 1938 |