. The Canadian ice age [microform] : being notes on the pleistocene geology of Canada, with especial reference to the life of the period and its climatal conditions. Geology; Glacial epoch; Paleontology; Géologie; Epoque glaciaire; Paléontologie. 4G TIIK K'K A(iK IN CANADA. to Iti' oldtT tliiiii the soiilli-wosl slriac!. Tii soiiio other ])arts of Cimiidii the-o striae sccin to ])v newer tliaii the otluirs, hut there would lie iiothiun' iiiiprohahle in their oc't'urriii_t;" hoth at the hegiiuiiuy' and end of tlie houhlor- elav })erio(l. In sunnnin!,' up this suhjeet, I think it may he atl
. The Canadian ice age [microform] : being notes on the pleistocene geology of Canada, with especial reference to the life of the period and its climatal conditions. Geology; Glacial epoch; Paleontology; Géologie; Epoque glaciaire; Paléontologie. 4G TIIK K'K A(iK IN CANADA. to Iti' oldtT tliiiii the soiilli-wosl slriac!. Tii soiiio other ])arts of Cimiidii the-o striae sccin to ])v newer tliaii the otluirs, hut there would lie iiothiun' iiiiprohahle in their oc't'urriii_t;" hoth at the hegiiuiiuy' and end of tlie houhlor- elav })erio(l. In sunnnin!,' up this suhjeet, I think it may he atlirnied that when the striation and transfer of materials have oliviously heen from to , in the direetion of the aretie eurrent, and more especially when marine remahis occur in the drift, we may infer tliat floating" ice and marine currents have heen the ellicient a<;ent8. Where the striation has a local character, dependinti; u])ou exist- in<;' mountains and valleys, we may on the other hand infer the action of land ice. For many minor ett'ects of striation, and of heaping' \\\) of moraine-like ridges, we may refer to the jtresence of lake or coast ice as the land was rising or suhsiding. This we now see ])roducing such elt'eets, and I think it has not lieen sulticiently taken into the account. As to the St. Lawrence valley, it is evident that its condition (hiring the deposit of the houhler-clay must have heen that of a part of a wide sound or inland sea extending across the continent, and that local glaciers may have descended into it from the high lands on the north, and on the south wdiich may have heen relatively higher than at present. During this state of the valley. Fig. 1.—Travelled lioiilder on Glaciated Rock. (After Dr. G. M. Dawson.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the origi
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
