Ice-work, Present and PastK. Paul, Trench, Trübner & Company, Limited, 1903 - 295 pagini |
Din interiorul cărții
Rezultatele 1 - 5 din 49
Pagina vii
... greater prominence to those facts of glacial geology on which all inferences must be founded . For instance , a clay containing erratics consists of certain materials , has a certain structure , and stands in certain relations to other ...
... greater prominence to those facts of glacial geology on which all inferences must be founded . For instance , a clay containing erratics consists of certain materials , has a certain structure , and stands in certain relations to other ...
Pagina 11
... greater or less proportions in these three ways : on the ice , in the ice , and under the ice . Streams , fed by snow - beds or by hanging glaciers , occasionally descend the slopes on either side and plunge beneath the ice , bearing ...
... greater or less proportions in these three ways : on the ice , in the ice , and under the ice . Streams , fed by snow - beds or by hanging glaciers , occasionally descend the slopes on either side and plunge beneath the ice , bearing ...
Pagina 43
... greater 1 The Nunataks , as these projecting summits are called , visited by Nansen , are about 47 miles from the edge of the ice , and are about 5400 feet above the sea , the level of the ice surface being about 4200 . 2 The " divide ...
... greater 1 The Nunataks , as these projecting summits are called , visited by Nansen , are about 47 miles from the edge of the ice , and are about 5400 feet above the sea , the level of the ice surface being about 4200 . 2 The " divide ...
Pagina 45
... greater depth of the ice and the more monotonous contours of the spurs separating the valleys ; but occasionally an offshoot from the main mass of the inland ice may pass through the de- pression between two " Nunataks " in the ...
... greater depth of the ice and the more monotonous contours of the spurs separating the valleys ; but occasionally an offshoot from the main mass of the inland ice may pass through the de- pression between two " Nunataks " in the ...
Pagina 47
... greater flat- ness of the ice - worn surfaces , and the general ab- sence of angular débris . Nevertheless a considerable quantity of mud and a number of stones must be constantly travelling beneath the Greenland ice , and these , under ...
... greater flat- ness of the ice - worn surfaces , and the general ab- sence of angular débris . Nevertheless a considerable quantity of mud and a number of stones must be constantly travelling beneath the Greenland ice , and these , under ...
Alte ediții - Afișează-le pe toate
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.