The ice age in North America and its bearing upon the antiquity of man5th edwith many new maps and illus., enland rewritten to incorporate the facts that bring it up to date, with chapters on Lake Agassiz and the Probable cause of glaciation . Fig. 102.—Section of kame near Dover, New Hampshire. Length, three hundred feet; heightforty feet; base, about forty feet above the Cochecno River, or seventy-five feetabove the sea. a, a, gray clay ; b, fine sand ; c, c, coar.«c gravel containing pebblesfrom six inches to one foot and a half in diameter ; d, cl, fine gravel. tUpham.) lakelets. But in ot
The ice age in North America and its bearing upon the antiquity of man5th edwith many new maps and illus., enland rewritten to incorporate the facts that bring it up to date, with chapters on Lake Agassiz and the Probable cause of glaciation . Fig. 102.—Section of kame near Dover, New Hampshire. Length, three hundred feet; heightforty feet; base, about forty feet above the Cochecno River, or seventy-five feetabove the sea. a, a, gray clay ; b, fine sand ; c, c, coar.«c gravel containing pebblesfrom six inches to one foot and a half in diameter ; d, cl, fine gravel. tUpham.) lakelets. But in other respects there is a marked differencebetween them. In the first place, the material of whichkames are formed is ordinarily much finer and more water-worn, and shows more abundant signs of stratification thanthat of which terminal moraines are composed. Secondly,while the terminal moraine forms a ridge at right angles tothe motion of the glacier, and marks the limit of its exten- The Great Ice Age, pp. 210, 211. 1^ ^£b »r- ft /- «< K - C » g t C — — » -t ^Jj; 3< c & ? ^i O SB -/. 5?.. KAME8. 341 sion during a prolonged period, the karnes approximatelycoincide in direction with the lines of glacial striae. A largepart of New England is covered with kame deposits, arranged,in general, along the main lines of present drainage, withmerely such anomalous exceptions as can readily be ex-plained by the interference which the ice itself oifered tothe course of the floods which characterized the last stagesof the Glacial period.
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Keywords: ., bookauthoruphamwarren18501934, bookcentury1900, bookdecade1910
