Ice-work, Present and PastK. Paul, Trench, Trübner & Company, Limited, 1903 - 295 pagini |
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Pagina 12
... , so that the plunging action of the stream is limited to a comparatively small surface of the under- lying rock ; for if the ice travel forward more rapidly than the stream can cut backward , a new chasm 12 ICE - WORK , PRESENT AND PAST.
... , so that the plunging action of the stream is limited to a comparatively small surface of the under- lying rock ; for if the ice travel forward more rapidly than the stream can cut backward , a new chasm 12 ICE - WORK , PRESENT AND PAST.
Pagina 14
... action of a glacier . A mound need not always be a moraine ; a perched block may possibly be due to some other agency ; but if due care be taken to avoid mistakes , the aforesaid marks indicate the path of a glacier as certainly as our ...
... action of a glacier . A mound need not always be a moraine ; a perched block may possibly be due to some other agency ; but if due care be taken to avoid mistakes , the aforesaid marks indicate the path of a glacier as certainly as our ...
Pagina 15
... , is obvious ; the dominant outlines of the valley are those indicative of the action of water , for it is V - shaped in section . It has been filled with ice , it has been modified ALPINE GLACIERS , PRESENT AND PAST 15.
... , is obvious ; the dominant outlines of the valley are those indicative of the action of water , for it is V - shaped in section . It has been filled with ice , it has been modified ALPINE GLACIERS , PRESENT AND PAST 15.
Pagina 16
... action , though these are sometimes blurred by the palimpsest writing of the ice - scribe . Moreover , with one or two slight excep- tions , as at the Räterichsboden , the V is always acutely pointed . This fact , and the general fresh ...
... action , though these are sometimes blurred by the palimpsest writing of the ice - scribe . Moreover , with one or two slight excep- tions , as at the Räterichsboden , the V is always acutely pointed . This fact , and the general fresh ...
Pagina 19
... action of land - ice , and regard them as types for comparison with those in other countries of which the origin is less certain . Accordingly we will retrace our steps to the ends of the glaciers , in order to ascertain what difference ...
... action of land - ice , and regard them as types for comparison with those in other countries of which the origin is less certain . Accordingly we will retrace our steps to the ends of the glaciers , in order to ascertain what difference ...
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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.