Ice-work, Present and PastK. Paul, Trench, Trübner & Company, Limited, 1903 - 295 pagini |
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Pagina ix
... when the climate was distinctly colder than it is at the present time , and some probably fall within the Glacial Epoch . But as their connection with ice is less obvious and the Glacial Epoch did not begin with PREFACE ix.
... when the climate was distinctly colder than it is at the present time , and some probably fall within the Glacial Epoch . But as their connection with ice is less obvious and the Glacial Epoch did not begin with PREFACE ix.
Pagina 5
... fall on or near the edge , so that on this a mound of boulders , large and small , together with grit and earth , gradually accumulates and is slowly swept along as the icy mass crawls downwards.1 This mound ALPINE GLACIERS , PRESENT ...
... fall on or near the edge , so that on this a mound of boulders , large and small , together with grit and earth , gradually accumulates and is slowly swept along as the icy mass crawls downwards.1 This mound ALPINE GLACIERS , PRESENT ...
Pagina 8
... not roll far ; while on the eastern face the rock structure lends itself to the formation of great precipices , from which masses are continually dislodged , to fall as avalanches of stone 8 ICE - WORK , PRESENT AND PAST.
... not roll far ; while on the eastern face the rock structure lends itself to the formation of great precipices , from which masses are continually dislodged , to fall as avalanches of stone 8 ICE - WORK , PRESENT AND PAST.
Pagina 9
Thomas George Bonney. are continually dislodged , to fall as avalanches of stone on the ice beneath . Solitary blocks - sometimes many cubic yards in volume may be seen , as we have said , travelling down the glacier ; as it retreats ...
Thomas George Bonney. are continually dislodged , to fall as avalanches of stone on the ice beneath . Solitary blocks - sometimes many cubic yards in volume may be seen , as we have said , travelling down the glacier ; as it retreats ...
Pagina 20
... fall of rocks as they impinge on the crags , to their mutual destruction . A cloud of dust accom- panies the volley of descending fragments ; for smoke- less powder is not used in Nature's artillery . The comparative rarity of ice ...
... fall of rocks as they impinge on the crags , to their mutual destruction . A cloud of dust accom- panies the volley of descending fragments ; for smoke- less powder is not used in Nature's artillery . The comparative rarity of ice ...
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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.