Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-24T04:23:06.306Z Has data issue: false hasContentIssue false
  • English
  • Français

Possible Causes of the Variability of Postglacial Uplift in North America

Published online by Cambridge University Press:  20 January 2017

Richard H. Fillon
Richard H. Fillon*
Affiliation:
Graduate School of Oceanography, Narragansett Marine Laboratory, University of Rhode Island, Kingston, Rhode Island 02881
Get access Rights & Permissions [Opens in a new window]

Abstract

Postglacial uplift data from 33 sites in northeastern North America reveal that during the period from 11,000 years B.P. to 7000 years B.P., glacio-isostatic uplift rates varied in a consistent manner with distance from the former margin of the Laurentide Ice Sheet. The consistent trends of these uplift rate variations with distance from the former ice sheet margin suggest that they were not the result of changes in the rate of ice sheet retreat or local tectonic activity. They instead may have resulted from rebound affected significantly by the earth's viscosity at a depth approximately equal to the wavelength of isostatic deformation [McConnell, R.K., Jr., Journal of Geophysical Research70, 5171 (1965)]. Extremely high viscosities below 600 km, however, probably provide the lower limit for this relationship.

Type
Original Articles
Information
Quaternary Research , Volume 1 , Issue 4 , December 1971 , pp. 522 - 531
Copyright
University of Washington

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Andrews, J.T. (1968). Postglacial rebound: similarity and prediction of uplift curves. Canadian Journal of Earth Sciences 5 39–47.CrossRefGoogle Scholar
Andrews, J.T. (1968). Pattern and cause of variability of Postglacial uplift and rate of uplift in Arctic Canada. Journal of Geology 76 404–425.CrossRefGoogle Scholar
Andrews, J.T. (1970). Present and Postglacial rates of uplift for glaciated northern and eastern North American derived from Postglacial uplift curves. Canadian Journal of Earth Sciences 7 703.Google Scholar
Andrews, J.T., Falconer, G. (1969). Late Glacial and Postglacial history and emergence of the Ottawa Islands, Hudson Bay, Northwest Territories: Evidence on the deglaciation of Hudson Bay. Canadian Journal of Earth Sciences 6 1263–1276.Google Scholar
Andrews, J.T., Buckley, Jane T., England, J.H. (1970). Late-glacial chronology and glacioisostatic recovery, Home Bay, East Baffin Island, Canada. Geological Society of America Bulletin 81 1123–1148.Google Scholar
Broecker, W.S. (1966). Glacial rebound and the deformation of the shorelines of proglacial lakes. Journal of Geophysical Research 71 4777–4783.Google Scholar
Brotchie, J.F., Silvester, R. (1969). On crustal flexure. Journal of Geophysical Research 74 5240–5252.Google Scholar
Connally, G.G., Sirkin, L.A. (1969). Deglacial events in the Hudson-Champlain Valley and their possible equivalents in New England. Abstracts for 1969, North East Section of the Geological Society of America Part I.Google Scholar
Crittendon, M.D. (1963). Effective viscosity of earth derived from isostatic loading of Pleistocene Lake Bonneville. Journal of Geophysical Research 6 5517.Google Scholar
Falconer, G., Andrews, J.T. Ives, J.D. (1965). Late Wisconsin end moraines in Northern Canada. Science 147 608–610.CrossRefGoogle ScholarPubMed
Farrand, W.R. (1962). Postglacial uplift in North America. American Journal of Science 260 181–199.Google Scholar
Farrand, W.R. (1965). The deglacial homicycle. Geologische Rundschau 54 385–398.Google Scholar
Farrand, W.R., Gajda, R.T. (1962). Isobases on the marine limit in Canada. Geographic Bulletin 5–22.Google Scholar
Fillon, R.H. (1969). "Sedimentation and Recent Geologic History of the Missisquoi Delta, Lake Champlain, Vermont." Unpublished Master's thesis University of Vermont Google Scholar
Flint, R.F. (1959). "Glacial Map of the United States East of the Rocky Mountains." published by the Geological Society of America, New York, Committee of the Division of Earth Sciences, National Research Council, Washington, D.C.Google Scholar
Knopoff, L. (1967). "The Earth's Mantle" Gaskell, T.F. Academic Press New York.Google Scholar
McConnell, R.K. Jr., (1965). Isostatic adjustments in a layered earth. Journal of Geophysical Research 70, 5171–5188.CrossRefGoogle Scholar
McConnell, R.K. Jr., (1968). Viscosity of the mantle from relaxation time spectra of isostatic adjustment. Journal of Geophysical Research 73, 7089–7105.Google Scholar
Mörner, Nils-Axel (1970). Isostasy and eustasy, Late Quaternary isostatic changes in southern Scandinavia and general isostatic changes of the world.Abstracts of Papers presented at the International Symposium on Recent Crustal Movements and Associated Seismicity, Royal Society of new Zealand. Google Scholar
Webber, P.J., Richardson, J.W., Andrews, J.T. (1970). Postglacial uplift and substrate age at Cape Henrietta Maria, Southeastern Hudson Bay, Canada. Canadian Journal of Earth Sciences 7, 317–325.Google Scholar