 It contains many glaciated bowlders and stones from the Laurentian region to the east, and also smaller pebbles from the Rocky Mountains; so that at the time of Its formation there must have been driftage of large stones for seven hundred miles or more...  Science - Página 199editado por - 1883Vista completa - Acerca de este libro
 | Edinburgh Geological Society - 1885 - 680 páginas
...region to the east, and also smaller pebbles from the Eocky Mountains. He accounts for this by supposing that, at the time of its formation, there must have been driftage of large stones for 700 miles or more from the east, ie, from the Laurentian region, and also driftage of smaller stones... | |
 | 1883 - 1186 páginas
...Memoir on ?laciera, Ocol. soc. Berlin, 1881. Climatic change!, Boston, 1833. ' SCIENCE, July 1, 1583. I am the more inclined to refer to this, because of...by forty by twenty feet in dimensions. The highest Laurentian bowlders seen were at an elevation of forty-six hundred and sixty feet, on the base of the... | |
 | 1883 - 896 páginas
...Geological Society of Berlin, 1881; "Climatic Changes," Boston, 1883. f "Science," July 1, 1883. ing eastward from the base of the Rocky Mountains, the...by forty by twenty feet in dimensions. The highest Laurentian bowlders seen were at an elevation of forty-six hundred and sixty feet, on the base of the... | |
 | John Michels (Journalist) - 1883 - 880 páginas
...though itself sometimes piled into ridges. Near the Rocky Mountains the bottom of the drift conMsts of gravel not glaciated. This extends to about one...by forty by twenty feet in dimensions. The highest Laurentian bowlders seen were at an elevation of forty-six hundred and sixty feet, on the base of the... | |
 | Sir John William Dawson - 1883 - 40 páginas
...boulders and stones from the Laurentian region to the east, and also smaller pebbles from the Eocky mountains, so that at the time of its formation there...base of the mountains, and to a height of more than 4,000 feet. One boulder is mentioned as being 42 X 40 X 20 feet in dimensions. The highest Laurentian... | |
 | 1884 - 902 páginas
...by bowlder clay and sand, in some places from one hundred to two hundred feet in depth, and tilling up pre-existing hollows, though itself sometimes piled...by forty by twenty feet in dimensions. The highest Laurentian bowlders seen were at an elevation of forty-six hundred and sixty feet, on the base of the... | |
 | American Association for the Advancement of Science - 1884 - 642 páginas
...largely made up of local debris, in so far as its paste is concerned. It contains many glaciated boulders and stones from the Laurentian region to the east,...base of the mountains, and to a height of more than 4,000 feet. One boulder is mentioned as being 42 X 40 X 20 feet in dimensions. The highest Laurentian... | |
 | American Association for the Advancement of Science - 1884 - 618 páginas
...largely made up of local debris, in so far as its paste is concerned. It contains many glaciated boulders and stones from the Laurentian region to the east,...base of the mountains, and to a height of more than 4,000 feet. One boulder is mentioned as being 42 X 40 X 20 feet in dimensions. The highest Laurentian... | |
 | American Association for the Advancement of Science - 1884 - 616 páginas
...so far as its paste is concerned. It contains many glaciated boulders and stones from the Laurentiau region to the east, and also smaller pebbles from...base of the mountains, and to a height of more than 4,000 feet. One boulder is mentioned as being 42 X 40 X 20 feet in dimensions. The highest Lanrentian... | |
 | American Association for the Advancement of Science - 1884 - 676 páginas
...far as its paste is concerned. It contains manj- glaciated boulders and stones from the Lauren tian region to the east, and also smaller pebbles from...base of the mountains, and to a height of more than 4,000 feet. One boulder is mentioned as being 42 X 40 X 20 feet in dimensions. The highest Laurentian... | |
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