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Lateral-Moraine Stratigraphy and Neoglacial History of Bugaboo Glacier, British Columbia

Published online by Cambridge University Press:  20 January 2017

Gerald Osborn
Gerald Osborn*
Affiliation:
Department of Geology and Geophysics, University of Calgary, Calgary, Alberta T2N 1N4, Canada
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Abstract

Most studies of alpine glacial history have concentrated on terminal moraines, but such moraines provide dates only for maximum extents of glaciers. Some lateral moraines have the potential for providing more complete glacial histories, because deposition by distal-flank accretion may result in sequences of stacked tills. Interpretation is aided by (1) the approximation that any continuous surface within the moraine parallel to the moraine's distal flank is isochronous, (2) inset gulley-fill deposits, which provide information on ice-margin history, and (3) incorporated organic material which can be radiocarbon dated. Lateral moraine stratigraphy of Bugaboo Glacier in southeastern British Columbia suggests that the glacier was fairly close to its maximum Neoglacial extent about 2500 14C yr B.P. A slow general expansion punctuated by at least one minor retreat continued from that time and culminated probably in the last century.

Type
Research Article
Information
Quaternary Research , Volume 26 , Issue 2 , September 1986 , pp. 171 - 178
Copyright
University of Washington

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References

Boulton, G.S. Eyles, N.(1979).Sedimentation by valley glaciers: A model and genetic classification Schlüchter, C. Moraines and Varves Balkema Rotterdam 11 24 Google Scholar
Burke, R.M. Birkeland, P.W.(1983).Holocene glaciation in the mountain ranges of the western United States Wright, H.E. Late Quaternary Environments of the United States Vol. 2 3 11 “The Holocene”Google Scholar
Carrara, P.E. McGimsey, R.G.(1981).The late-Neoglacial histories of the Agassiz and Jackson Glaciers, Glacier National Park, Montana Arctic and Alpine Research 13 183 196 Google Scholar
Crandell, D.R.(1969).Surficial Geology of Mount Rainier National Park, Washington U.S. Geological Survey Bulletin 1288Google Scholar
Crandell, D.R. Miller, R.D.(1974).Quaternary Stratigraphy and Extent of Glaciation in the Mount Rainier Region, Washington U.S. Geological Survey Professional Paper 847Google Scholar
Derbyshire, E.D. Gregory, K.J. Hails, J.R.(1979).Geomorphological Processes Westview Boulder, Colo Google Scholar
Gardner, J.S. Jones, N.K.(1985).Evidence for a Neoglacial advance of the Boundary Glacier Banff National Park, Alberta Canadian Journal of Earth Sciences 22 1753 1755 CrossRefGoogle Scholar
Heusser, C.J.(1956).Postglacial environments in the Canadian Rocky Mountains Ecological Monographs 26 253 302 CrossRefGoogle Scholar
Humlum, O.(1978).Genesis of layered lateral moraines Geografisk Tidsskrift 77 65 72 CrossRefGoogle Scholar
Leonard, E.M.(1981).Glaciolacustrine Sedimentation and Holocene Glacial History, Northern Banff National Park, Alberta Unpublished Ph.D. dissertation University of Colorado Google Scholar
Leonard, E.M.(1982).Holocene Glacial History, Central Canadian Rocky Mountains: Evidence from Lacustrine Sedimentary Records Program and Abstracts, American Quaternary Association 7th Biennial Conference 120 Google Scholar
Luckman, B.H. Osborn, G.D.(1979).Holocene glacier fluctuations in the middle Canadian Rocky Mountains Quaternary Research 11 52 77 Google Scholar
Osborn, G.D.(1978).Fabric and origin of lateral moraines, Bethartoli Glacier, Garhwal Himalaya, India Journal of Glaciology 20 547 553 Google Scholar
Osborn, G.D.(1985).Holocene tephrostratigraphy and glacial fluctuations in Waterton Lakes and Glacier National Parks, Alberta and Montana Canadian Journal of Earth Sciences 22 1093 1101 CrossRefGoogle Scholar
Porter, S.C. Denton, G.H.(1967).Chronology of Neoglaciation in the North American Cordillera American Journal of Science 265 177 210 CrossRefGoogle Scholar
Reesor, J.E.(1973).Geology of the Lardeau Map-Area, East Half, British Columbia Geological Survey of Canada Memoir 369Google Scholar
Röthlisberger, F. Haas, P. Holzhauser, H. Keller, W. Bircher, W. Renner, F.(1980).Holocene climatic fluctuations—Radiocarbon dating of fossil soils (fAh) and woods from moraines and glaciers in the Alps Geographica Helvetica 35 21 52 Google Scholar
Ryder, J. Thomson, B.(1986).Neoglaciation in the southern Coast Mountains of British Columbia: Chronology prior to the late-Neoglacial maximum Canadian Journal of Earth Science 23 273 287 Google Scholar
Small, R.J. Beecroft, I.R. Stirling, D.M.(1984).Rates of deposition on lateral moraine embankments, Glacier de Tsidjiore Nouve, Valais, Switzerland Journal of Glaciology 30 275 281 Google Scholar
Stuiver, M.(1978).Radiocarbon timescale tested against magnetic and other dating methods Nature (London) 273 271 274 Google Scholar
Wheeler, A.O.(1934).Records of glacial observations in the Canadian Cordillera, 1933 and 1934 Canadian Alpine Journal 22 172 187 Google Scholar