Man and the Glacial PeriodD. Appleton, 1896 - 385 pagini |
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Pagina ix
... continuous , but that ( as indicated in the present volume on page 206 ) the drainage of various portions of that region was by northern outlets to the Lake Erie basin , leaving , on this supposition , the cols between two or three ...
... continuous , but that ( as indicated in the present volume on page 206 ) the drainage of various portions of that region was by northern outlets to the Lake Erie basin , leaving , on this supposition , the cols between two or three ...
Pagina xi
... continuous on the two - hundred - foot rock shelf , and are often as much as eighty feet thick . It seems probable , therefore , that the Alleghany and upper Ohio gorge was filled with glacial gravel to a depth of about two hundred and ...
... continuous on the two - hundred - foot rock shelf , and are often as much as eighty feet thick . It seems probable , therefore , that the Alleghany and upper Ohio gorge was filled with glacial gravel to a depth of about two hundred and ...
Pagina 4
... continuous stream at the top , cracks open along the line of tension , and S wedge - shaped fissures are FIG . 5. - c , c , show fissures and seracs where the glacier- moves down the steeper portion of its incline ; 8 , 8 , show the ...
... continuous stream at the top , cracks open along the line of tension , and S wedge - shaped fissures are FIG . 5. - c , c , show fissures and seracs where the glacier- moves down the steeper portion of its incline ; 8 , 8 , show the ...
Pagina 13
... continuous . Four great glaciers here descend to tide - wa- ter in Magdalena Bay . The largest of these presents at the front a wall of ice seven thousand feet across and three hundred feet high ; but , as the depth of the water is not ...
... continuous . Four great glaciers here descend to tide - wa- ter in Magdalena Bay . The largest of these presents at the front a wall of ice seven thousand feet across and three hundred feet high ; but , as the depth of the water is not ...
Pagina 32
... continuous sheet of moving ice , pressing outward on every side towards the open water of the surrounding seas . For a long time it was the belief of many that a large region in the interior of Greenland was free from ice , and was ...
... continuous sheet of moving ice , pressing outward on every side towards the open water of the surrounding seas . For a long time it was the belief of many that a large region in the interior of Greenland was free from ice , and was ...
Alte ediții - Afișează-le pe toate
Man and the Glacial Period George Frederick Wright,Henry Williamson Haynes Vizualizare completă - 1892 |
Man and the Glacial Period George Frederick Wright,Henry Williamson Haynes Vizualizare completă - 1892 |
Man and the Glacial Period George Frederick Wright,Henry Williamson Haynes Vizualizare completă - 1892 |
Termeni și expresii frecvente
accumulation Alleghany Alps America animals basin boulder-clay boulders cave channel clay cliffs coast continuous County Creek depth discovery distance drainage drift east elevation England erosion Europe evidence extending facts farther fiords flint flow formed Fort Snelling Geological Society geologists glacial deposits Glacial epoch glacial ice glacial motion Glacial period glaciated area glaciated region gorge granite gravel Greenland height hills hundred feet Ice age ice-front ice-sheet implements Irish Sea Island kettle-holes Lake Agassiz Lake Michigan Lake Ontario land latitude lava loess lower marine mass melting miles Mississippi motion névé northern northward numerous occur Ohio Ohio River outlet palæolithic pebbles Pliocene portion preglacial present Professor Rhône Glacier ridges River rock sand shells shore side southern southward species square miles strata streams subsidence surface terminal moraine terraces Tertiary Thenay theory thick thousand feet tion transported Trenton tributary upper valley vicinity western