. Bulletin - United States National Museum. Science. 10 TJ. S. NATIONAL MUSEUM BULLETIN 21' deep and warm Pacific Ocean. The soutliem foot of the ice cover of the Wisconsin age was at about latitude 60° IST. in central Alaska, while the midcontinental ice fields extended 15° farther southward. In the late Wisconsin age continuous ice fields discharged glaciers north of the Alaska Eange to form moraines along the southern sides of the Kuskokwim and Tanana Valleys (Pewe, 1953). North of the Brooks Range, the Wisconsin age glaciers also extended just beyond the mountains. In general it appears th
. Bulletin - United States National Museum. Science. 10 TJ. S. NATIONAL MUSEUM BULLETIN 21' deep and warm Pacific Ocean. The soutliem foot of the ice cover of the Wisconsin age was at about latitude 60° IST. in central Alaska, while the midcontinental ice fields extended 15° farther southward. In the late Wisconsin age continuous ice fields discharged glaciers north of the Alaska Eange to form moraines along the southern sides of the Kuskokwim and Tanana Valleys (Pewe, 1953). North of the Brooks Range, the Wisconsin age glaciers also extended just beyond the mountains. In general it appears that in Alaska north of about latitude 64° extensive lowland areas were not then covered by ice and that the continuous ice cap m central Alaska extended farther south- ward across only about 5° of latitude (see map, fig. 3). McComiell (1890) first remarked that the northern part of Yukon Territory appeared to have been free from the continuous ice which covered the country far to the southward and which probably extended over. SEA-LEVEL ISOTHERMS : JANUARY (° Q Figure 2.—Sea-level isotherms for January (left) and May (right). (From C. F. Brooks, Univ. Press, 1936,. 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 original United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
Size: 1568px × 1593px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
