Ice-work, Present and PastK. Paul, Trench, Trübner & Company, Limited, 1903 - 295 pagini |
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Pagina 23
... thickness of the glacier has been diminished in places from 150 to more than 300 feet . Where the ice has rested on 1 To these a fuller reference will be made in a later chapter . • reached the level bed of a slope , bare ALPINE ...
... thickness of the glacier has been diminished in places from 150 to more than 300 feet . Where the ice has rested on 1 To these a fuller reference will be made in a later chapter . • reached the level bed of a slope , bare ALPINE ...
Pagina 28
... thickness , occur here and there , sometimes showing false bedding . The mass passes down into stratified sand , in which smaller pebbles occasionally form a seam , but generally are scattered sparsely . This finer material is seen to ...
... thickness , occur here and there , sometimes showing false bedding . The mass passes down into stratified sand , in which smaller pebbles occasionally form a seam , but generally are scattered sparsely . This finer material is seen to ...
Pagina 32
... thickness , con- sists of stratified gravel , like that near Zurich , though perhaps the pebbles are slightly more rounded . Over this comes about four feet of morainic material . In it erratics are numerous , but its earthy matrix , to ...
... thickness , con- sists of stratified gravel , like that near Zurich , though perhaps the pebbles are slightly more rounded . Over this comes about four feet of morainic material . In it erratics are numerous , but its earthy matrix , to ...
Pagina 33
... thicker , and has been reduced by sub - aërial if not by fluviatile denudation . The pressure of the ice , which seems here to have been forced for a short space up a slope , has apparently ploughed up a little of the underlying loose ...
... thicker , and has been reduced by sub - aërial if not by fluviatile denudation . The pressure of the ice , which seems here to have been forced for a short space up a slope , has apparently ploughed up a little of the underlying loose ...
Pagina 61
... thickness of the mass being doubtless affected by the configuration of the buried land . From this ice - sheet the great tabular bergs , so characteristic of the Antarctic Ocean , are detached , and the ice - cliffs are formed which ...
... thickness of the mass being doubtless affected by the configuration of the buried land . From this ice - sheet the great tabular bergs , so characteristic of the Antarctic Ocean , are detached , and the ice - cliffs are formed which ...
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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.