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Title	A reinterpretation of certain aspects of the late quaternary glacial history of little Cottonwood Canyon, Wasatch Mountains, Utah
Publication Type	thesis
School or College	College of Social & Behavioral Science
Department	Geography
Author	McCoy, William Dennis
Date	1977
Description	Holocene and late Pleistocene deposits in the cirques and at the mouths of Little Cottonwood and Bells Canyons are reexamined. Stratigraphy, radiocarbon dating, lichenometry, and relative age dating methods provide evidence for a new age interpretation of glacier and rock glacier deposits. Of the relative age dating methods, boulder-surface microrelief is particularly useful. Moraines and rock glaciers in the cirques are reinterpreted as being generally older than they were thought to be by previous workers. Most deposits mapped earlier as late Neoglacial are mapped here as early Neoglacial in age. Many deposits formerly thought to be early Neoglacial are considered to be of pre-Neoglacial age in this report. A Holocene pollen diagram from Albion Basin Bog is presented. The youngest moraines at the mouth of Little Cottonwood Canyon and correlative moraines at the mouth of Bells Canyon, interpreted by some workers as early Wisconsin deposits, are shown to be late Wisconsin in age (between 20,000 and 27,000 B.P.). This glaciation was correlative with the late Wisconsin rise of Lake Bonneville that overflowed at Red Rock Pass, Idaho, into the Snake River drainage. Stratigraphic relationships near the mouth of Bells Canyon provide evidence for an earlier, perhaps Illinoisan, glaciation that was also correlative with a high stage of Lake Bonneville.
Type	Text
Publisher	University of Utah
Subject	Glacial epoch; Utah; Little Cottonwood Canyon
Dissertation Name	Master of Arts
Language	eng
Rights Management	© William Dennis McCoy
Format	application/pdf
Format Medium	application/pdf
ARK	ark:/87278/s6tx82tw
Setname	ir_etd
ID	1460900
Reference URL	https://collections.lib.utah.edu/ark:/87278/s6tx82tw

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Title	Page 90
Format	application/pdf
Setname	ir_etd
ID	1460990
OCR Text	Show BIBLIOGRAPHY Antevs, E. V., 1945, Correlation of Wisconsin glacial maxima: Jour. Sci., v. 243-A, Daly Volume, p. 1-39. Arnow, L. A., Wyckoff, A. M., and Albee, B. J., 1977, Flora of the Wasatch Front, Utah: Salt Lake City, Univ. Utah Printing Service, 459 p. Central Atwood, W. W., 1909, Glaciation of the Uinta and Wasatch Mountains: U.S. Geol. Survey Prof. Paper 61,96 p. Benedict, J. B., 1967, Recent glacial history of Colorado Front Range, U.S.A. Jour. Glaciol., v. 6, curve: an I. Establishing p. 817-832. alpine a area - in the lichen-growth 1968, Recent glacial history of an alpine area in the Colorado Front Range, U.S.A. II. Dating the glacial deposits: Jour. Glaciol., v. 7, p. 77-87. ' ____ , ________ 1973, Chronology of cirque glaciation in the Colorado Front Quaternary Research, v. 3, p. 584-599. Range: Beschel, R. E., 1961, Dating rock surfaces by lichen growth and its application to glaciology and physiography (lichenometry), Raasch, G. 0., ed., Geology of the Arctic, V. Univ. Toronto Press, p. 1044-1062. _____ ' 1973, Lichens Arctic and as a measure Alpine Research, v. s: in Toronto,- of the age of recent moraines: 5, p. 303-309. Birkeland, P. J., 1973, Use of relative age-dating methods in a stratigraphic study of rock glacier deposits, Mt. Sopris, Arctic and Alpine Research, v. 5, p. 401-416. Colorado: Birman, J. H., 1964, Glacial geology across the crest of the Sierra Geol. Soc. Ameri ca Spec. Paper 75, 80 p. Nevada, Cal iforni a: / Blackwelder, Eliot, 1931, Pleistocene glaciation in the Sierra Nevada Geol. Soc. America Bull., v. 42, p. 865-922. and Basin Ranges: Calkins, F. C., and Butler, B. S., 1943, Geology and ore deposits of U.S. Geo1. Survey the Cottonwood-American Fork area, Utah: Prof. Paper 201, 152 p.
Reference URL	https://collections.lib.utah.edu/ark:/87278/s6tx82tw/1460990