Ice-work, Present and PastK. Paul, Trench, Trübner & Company, Limited, 1903 - 295 pagini |
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Pagina 123
... Wales , the Lake District , and Scotland , because less difference of opinion exists in regard to these , all geologists admitting that , during the larger part of the Glacial Epoch , they were occupied , if not by an ice - sheet , 1 66 ...
... Wales , the Lake District , and Scotland , because less difference of opinion exists in regard to these , all geologists admitting that , during the larger part of the Glacial Epoch , they were occupied , if not by an ice - sheet , 1 66 ...
Pagina 129
... valleys than on the limestone up- lands of the north - eastern part of the county . Woodward , " Geology of England and Wales , " p . 497 . I due to the presence of material obtained from the Keuper ICE - WORK IN GREAT BRITAIN 129.
... valleys than on the limestone up- lands of the north - eastern part of the county . Woodward , " Geology of England and Wales , " p . 497 . I due to the presence of material obtained from the Keuper ICE - WORK IN GREAT BRITAIN 129.
Pagina 135
... Wales , admit in some places of a tripartite division , viz . , a Lower Boulder Clay , Intermediate Sands and Gravels , and an Upper Boulder Clay . This division , however , as in the eastern counties , cannot always be main- tained ...
... Wales , admit in some places of a tripartite division , viz . , a Lower Boulder Clay , Intermediate Sands and Gravels , and an Upper Boulder Clay . This division , however , as in the eastern counties , cannot always be main- tained ...
Pagina 137
... Wales affords similar evidence . As to the Snowdonian district , the former presence of large glaciers is beyond dispute . They must have descended at least to the present sea - level , The lower spurs of the rocky hills on either bank ...
... Wales affords similar evidence . As to the Snowdonian district , the former presence of large glaciers is beyond dispute . They must have descended at least to the present sea - level , The lower spurs of the rocky hills on either bank ...
Pagina 139
... ) have been found by various observers in the boulder clays and gravels of North Wales . See D. Mackintosh , Geol Mag . , 1872 , p . 18 . infrequent.1 A mass of this forms the conspicuous hill called ICE - WORK IN GREAT BRITAIN 139.
... ) have been found by various observers in the boulder clays and gravels of North Wales . See D. Mackintosh , Geol Mag . , 1872 , p . 18 . infrequent.1 A mass of this forms the conspicuous hill called ICE - WORK IN GREAT BRITAIN 139.
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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.