Ice-works, Present and PastK. Paul, Trench, Trübner & Company, Limited, 1896 - 295 pagini |
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Pagina xiii
... Block on Ice - worn Rock Islet , Nerlungshavn , near Langesund , Norway 2. Scratched Stone from the Till of Boston 3. Section ( Diagrammatic ) of an Old Moraine , near Reiche- nau , Switzerland · • 4. Section of Till , near Thalwyl ...
... Block on Ice - worn Rock Islet , Nerlungshavn , near Langesund , Norway 2. Scratched Stone from the Till of Boston 3. Section ( Diagrammatic ) of an Old Moraine , near Reiche- nau , Switzerland · • 4. Section of Till , near Thalwyl ...
Pagina 5
... block , more headlong than the rest , closes its career by one vast leap which lands it out on the glacier some hundreds of feet away from the rocks ; but the majority fall on or near the edge , so that on this a mound of boulders ...
... block , more headlong than the rest , closes its career by one vast leap which lands it out on the glacier some hundreds of feet away from the rocks ; but the majority fall on or near the edge , so that on this a mound of boulders ...
Pagina 6
... blocks also travel on with the ice . If they are flat in form , they become elevated on pedestals ; for they act as parasols , and so the ice beneath them melts less rapidly than the exposed surface of the glacier . Sometimes they ...
... blocks also travel on with the ice . If they are flat in form , they become elevated on pedestals ; for they act as parasols , and so the ice beneath them melts less rapidly than the exposed surface of the glacier . Sometimes they ...
Pagina 7
... blocks which were swallowed up in the shal- lower fissures appear again , in some cases disclosed by the melting of the ice , in others possibly1 extruded by an upward motion in the mass itself . Thus , as a rule , the moraine , before ...
... blocks which were swallowed up in the shal- lower fissures appear again , in some cases disclosed by the melting of the ice , in others possibly1 extruded by an upward motion in the mass itself . Thus , as a rule , the moraine , before ...
Pagina 9
... blocks - sometimes many cubic yards in volume may be seen , as we have said , travelling down the glacier ; as it retreats , such blocks are occasionally stranded , either on the sloping flanks of the valley , or on some prominent ...
... blocks - sometimes many cubic yards in volume may be seen , as we have said , travelling down the glacier ; as it retreats , such blocks are occasionally stranded , either on the sloping flanks of the valley , or on some prominent ...
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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