Ice-works, Present and PastK. Paul, Trench, Trübner & Company, Limited, 1896 - 295 pagini |
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Pagina 10
... fragments broken off and the dust worn away from the underlying rocks are carried onwards and form an armature to the lower surface of the glacier . The moraine stuff , engulfed in crevasses which happen to extend from the top to the ...
... fragments broken off and the dust worn away from the underlying rocks are carried onwards and form an armature to the lower surface of the glacier . The moraine stuff , engulfed in crevasses which happen to extend from the top to the ...
Pagina 20
... fragments ; for smoke- less powder is not used in Nature's artillery . The comparative rarity of ice - worn and striated stones in the recent moraines is a further proof that they owe little to subglacial débris . The torrent , how ...
... fragments ; for smoke- less powder is not used in Nature's artillery . The comparative rarity of ice - worn and striated stones in the recent moraines is a further proof that they owe little to subglacial débris . The torrent , how ...
Pagina 26
... fragments , which commonly range downwards from a cubic inch to one sixty - fourth of the same . This finer material , including the sandy clay , seems 1 Fresh sections can be seen by the side of a little path which turns off from the ...
... fragments , which commonly range downwards from a cubic inch to one sixty - fourth of the same . This finer material , including the sandy clay , seems 1 Fresh sections can be seen by the side of a little path which turns off from the ...
Pagina 30
... fragments , from the size of a horse - bean downwards , are more numerous . Larger blocks also are commoner , some occasionally occurring which are four feet or more in diameter . These are usually angular , but those of smaller size ...
... fragments , from the size of a horse - bean downwards , are more numerous . Larger blocks also are commoner , some occasionally occurring which are four feet or more in diameter . These are usually angular , but those of smaller size ...
Pagina 45
... fragments can fall upon its surface ; the possibility of a moraine ceases with the last " Nunataks , " and as these are not large , the stream of blocks which they originate must be correspondingly small . Still , in a few cases , piled ...
... fragments can fall upon its surface ; the possibility of a moraine ceases with the last " Nunataks , " and as these are not large , the stream of blocks which they originate must be correspondingly small . Still , in a few cases , piled ...
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Termeni și expresii frecvente
Alpine Alps amount angular basin beneath boulder clay breccias Carboniferous chalk chap cliffs climate coast comparatively considerable crags débris descend direction distance district Drift 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 Illustrations 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 places 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