Ice-work, Present and PastK. Paul, Trench, Trübner & Company, Limited, 1903 - 295 pagini |
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Pagina vii
... certain structure , and stands in certain relations to other deposits . These are facts , and their bearing on the question of its origin - whether it be the ground - moraine of an vii 156286 ice - sheet or such a deposit as is now.
... certain structure , and stands in certain relations to other deposits . These are facts , and their bearing on the question of its origin - whether it be the ground - moraine of an vii 156286 ice - sheet or such a deposit as is now.
Pagina 3
... ground of glaciers . Four of these , larger and more definite than the rest , descend from snowy saddles , which are separated by grand peaks— masses of steep ice broken by precipices and seamed by outcropping ridges of dark rock . The ...
... ground of glaciers . Four of these , larger and more definite than the rest , descend from snowy saddles , which are separated by grand peaks— masses of steep ice broken by precipices and seamed by outcropping ridges of dark rock . The ...
Pagina 10
... ground previously uncovered , it encounters rugged surfaces and jutting ledges . These it gradually wears away , making the rough places smooth , as angles are replaced by curves and craggy prominences by rounded knolls , in outline ...
... ground previously uncovered , it encounters rugged surfaces and jutting ledges . These it gradually wears away , making the rough places smooth , as angles are replaced by curves and craggy prominences by rounded knolls , in outline ...
Pagina 11
... ground moraine , or moraine profonde . As to its amount and importance there is much dispute , some holding that a very large quantity of materials travels in this way , while others think it to be com- paratively small . Boulders and ...
... ground moraine , or moraine profonde . As to its amount and importance there is much dispute , some holding that a very large quantity of materials travels in this way , while others think it to be com- paratively small . Boulders and ...
Pagina 12
Thomas George Bonney. to augment either the ground moraine or the material which is swept along the main channel of subglacial drainage . Boulders which travel under the ice and help in scoring the subjacent rocks must themselves suffer ...
Thomas George Bonney. to augment either the ground moraine or the material which is swept along the main channel of subglacial drainage . Boulders which travel under the ice and help in scoring the subjacent rocks must themselves suffer ...
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Termeni și expresii frecvente
Alpine Alps amount angular basin beneath boulder clay breccias Britain Carboniferous chalk chap cliffs climate coast comparatively considerable crags débris descend direction distance district Drift Edition elevation England Eocene erratics feet above sea-level fragments Geol geologists Geology Geology of England glacial deposits Glacial Epoch glaciers Glen Roy granite Greenland ground height higher hills hypothesis Ice Age ice-sheet ice-streams inches indicate inland ice Irish Sea islands Jour lakes land land-ice latitude latter less lower lowlands Malaspina Glacier marine mass material melting miles Moel Tryfaen molluscs moraine mountain nearly neighbourhood névé northern Norway numerous Nunataks occasionally occur peaks pebbles precipitation present probably Professor Quart range region ridges rise river roches moutonnées sands and gravels Scotland shells side slope snow snow-line sometimes southern stones stratified streams striated subangular submergence surface temperature terminal moraine thickness tion traced upper valley Wales western yards
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Pagina 59 - It was a beautifully clear evening, and we had a most enchanting view of the two magnificent ranges of mountains, whose lofty peaks, perfectly covered with eternal snow, rose to elevations varying from seven to ten thousand feet above the level of the ocean. The glaciers that filled their intervening valleys, and which descended from near the mountain summits, projected in many places several miles into the nea, and terminated in lofty perpendicular cliffs.