Ice-work, Present and PastK. Paul, Trench, Trübner & Company, Limited, 1903 - 295 pagini |
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Pagina 7
... lower fissures appear again , in some cases disclosed by the melting of the ice , in others possibly 1 extruded by an upward motion in the mass itself . Thus , as a rule , the moraine , before reaching the end of the glacier , has ...
... lower fissures appear again , in some cases disclosed by the melting of the ice , in others possibly 1 extruded by an upward motion in the mass itself . Thus , as a rule , the moraine , before reaching the end of the glacier , has ...
Pagina 10
... lower surface of the glacier . The moraine stuff , engulfed in crevasses which happen to extend from the top to the bottom of the glacier , also augments its rasping power . Moreover , when the glacier makes its first advance , it may ...
... lower surface of the glacier . The moraine stuff , engulfed in crevasses which happen to extend from the top to the bottom of the glacier , also augments its rasping power . Moreover , when the glacier makes its first advance , it may ...
Pagina 20
... lower part of the moraine , and the sloping surface of the ice is coated for a considerable distance up with mud and sand , so as to be a dull grey in colour . known that fine mud , grit , and small stones are common on the surface of ...
... lower part of the moraine , and the sloping surface of the ice is coated for a considerable distance up with mud and sand , so as to be a dull grey in colour . known that fine mud , grit , and small stones are common on the surface of ...
Pagina 29
... lower part the pebbles seldom exceed the size of a goose - egg , and are commonly less . Many of the minor inequalities in the town of Zurich are really moraines , the origin of which is still betrayed by their form , notwithstanding ...
... lower part the pebbles seldom exceed the size of a goose - egg , and are commonly less . Many of the minor inequalities in the town of Zurich are really moraines , the origin of which is still betrayed by their form , notwithstanding ...
Pagina 30
... lower , and one or two dark streaks suggested the presence of carbonaceous matter . Below this clay was the usual molasse , its surface being rather rough and slightly broken . On the hill above Thalwyl , on the left bank of the Lake of ...
... lower , and one or two dark streaks suggested the presence of carbonaceous matter . Below this clay was the usual molasse , its surface being rather rough and slightly broken . On the hill above Thalwyl , on the left bank of the Lake of ...
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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
Pasaje populare
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.