Ice-work, Present and PastK. Paul, Trench, Trübner & Company, Limited, 1903 - 295 pagini |
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Pagina
... Land Mollusca . By H. WALLIS KEW , F.Z.S. With Preface by A. R. WALLACE , F.R.S. , and Illustrations . LXXVI . RACE and LANGUAGE . BY ANDRÉ LEFÈVRE , Professor in the Anthropological School , Paris . LXXVII . The ORIGIN of PLANT ...
... Land Mollusca . By H. WALLIS KEW , F.Z.S. With Preface by A. R. WALLACE , F.R.S. , and Illustrations . LXXVI . RACE and LANGUAGE . BY ANDRÉ LEFÈVRE , Professor in the Anthropological School , Paris . LXXVII . The ORIGIN of PLANT ...
Pagina 6
... - streams of Green- land . See Prestwich , " Geology , " Part II . chap . xxxiii . 2 This is called a medial moraine , the others being called lateral . In them much 6 in 100 , affords a good 6 ICE - WORK , PRESENT AND PAST CHAP.
... - streams of Green- land . See Prestwich , " Geology , " Part II . chap . xxxiii . 2 This is called a medial moraine , the others being called lateral . In them much 6 in 100 , affords a good 6 ICE - WORK , PRESENT AND PAST CHAP.
Pagina 12
... land . But the course of the main stream of this drainage system is often cut short . If a crevasse opens across its path , the water plunges into the abyss and strikes on the rocks beneath . As the glacier advances , the friction of ...
... land . But the course of the main stream of this drainage system is often cut short . If a crevasse opens across its path , the water plunges into the abyss and strikes on the rocks beneath . As the glacier advances , the friction of ...
Pagina 16
... land the valley is barred by a limestone ridge , called the Kirchet , through which the Aar has cut a narrow gorge.1 The side which faces the east is steep , almost precipitous , but up and over this , some 300 feet above the valley ...
... land the valley is barred by a limestone ridge , called the Kirchet , through which the Aar has cut a narrow gorge.1 The side which faces the east is steep , almost precipitous , but up and over this , some 300 feet above the valley ...
Pagina 19
... 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 , if any ...
... 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 , if any ...
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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
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.