Hostname: page-component-848d4c4894-x24gv Total loading time: 0 Render date: 2024-05-13T13:08:03.332Z Has data issue: false hasContentIssue false

Predicted Relative Sea-Level Changes (18,000 Years B.P. to Present) Caused by Late-Glacial Retreat of the Antarctic Ice Sheet

Published online by Cambridge University Press:  20 January 2017

James A. Clark
Affiliation:
Department of Geological Sciences, Cornell University, Ithaca, New York 14853 USA
Craig S. Lingle
Affiliation:
Department of Geological Sciences, Cornell University, Ithaca, New York 14853 USA

Abstract

Predictions of global changes in relative sea level caused by retreat of the Antarctic Ice Sheet from its 18,000 yr B.P. maximum to its present size are calculated numerically. When combined with the global predictions of relative sea-level change resulting from retreat of the Northern Hemisphere ice sheets, the results may be compared directly to observations of sea-level change on the Antarctic continent as well as at distant localities. The comparison of predictions to the few observations of sea-level change on Antarctica supports the view that the Antarctic Ice Sheet was larger 18,000 years ago than at present. The contribution of the Antarctic Ice Sheet to the total eustatic sea-level rise is assumed to be 25 m (25% of the assumed total eustatic rise). If as little as 0.7 m of this 25-m rise occurred between 5000 yr B.P. and the present, few mid-oceanic islands would emerge. If the Antarctic Ice Sheet attained its present dimensions by 6000 yr B.P., however, and if the volume of the ocean has remained constant for the past 5000 years, numerous islands throughout the Southern Hemisphere would emerge. It is suggested that a thorough study of Pacific islands, believed by some to have slightly emerged shorelines of Holocene age, would yield useful information about ocean volume changes during the past 5000 years, and hence on the glacial history of the Antarctic Ice Sheet.

Type
Original Articles
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

Angino, E.E., (1963). Discussion: Quaternary marine sediments and their geological dates with reference to the geomorphology of Kronprins Olavkyst. Antarctic Geology, SCAR Proceedings. 79-80.Google Scholar
Bloom, A.L., (1970). Paludal stratigraphy of Truk, Ponape, and Kusaie, Eastern Caroline Islands. Geological Society of America Bulletin. 8, 1895-1904.Google Scholar
Brennen, C., (1974). Isostatic recovery and the strain rate dependent viscosity of the Earth's mantle. Journal of Geophysical Research. 79, 3993-4001.CrossRefGoogle Scholar
Cameron, R.L., Goldthwait, R.P., (1961). The U.S.-IGY contribution to Antarctic glaciology. Union Geodesique et Geophysique Internationale, Association Internationale d' Hydrologie Scientifique. 7-13 Publication No. 55.Google Scholar
Cathles, L.M., (1975) The Viscosity of the Earth's Mantle. Princeton University Press, Princeton, N.J. Google Scholar
Clark, J.A., Farrell, W.E., Peltier, W.R., (1978). Global changes in postglacial sea level: A numerical calculation. Quaternary Research. 9, 265-287.CrossRefGoogle Scholar
Denton, G.H., Armstrong, R.L., Stuiver, M., (1970). Late Cenozoic glaciation in Antarctica: The record in the McMurdo Sound region. Antarctic Journal of the United States. 5, 15-27.Google Scholar
Denton, G.H., Borns, H.W. Jr., Grosswald, M.G., Stuiver, M., Nichols, R.L., (1975). Glacial history of the Ross Sea. Antarctic Journal of the United States. 10, 160-164.Google Scholar
Dillon, W.P., Oldale, R.N., (1978). Late Quaternary sea-level curve: Reinterpretation based on glaciotectonic influence. Geology. 6, 56-60.2.0.CO;2>CrossRefGoogle Scholar
Easton, W.H., Olson, E.A., (1976). Radiocarbon profile of Hanauma Reef, Oahu, Hawaii. Geological Society of America Bulletin. 87, 711-719.2.0.CO;2>CrossRefGoogle Scholar
Emery, K.O., Garrison, L.E., (1967). Sea levels 7000 to 20,000 years ago. Science. 157, 684-687.CrossRefGoogle Scholar
Fairbridge, R.W., (1976). Shellfish-eating Preceramic Indians in coastal Brazil. Science. 191, 353-359.CrossRefGoogle ScholarPubMed
Farrell, W.E., Clark, J.A., (1976). On postglacial sea level. Geophysical Journal of the Royal Astronomical Society. 46, 647-667.CrossRefGoogle Scholar
Hollin, J.T., (1962). On the glacial history of Antarctica. Journal of Glaciology. 4, 173-195.Google Scholar
Hollin, J.T., (1968). The Antarctic Ice Sheet and the Quaternary history of Antarctica. Palaeoecology of Africa. 5, 109-138.Google Scholar
Hughes , T., Denton , G. H., Anderson , B. G., Schilling , D. H., Fastook , J. L., and Lingle , C. S., The last great ice sheets: A global view. . In “The Last Great Ice Sheets”. ( Denton , G. H., and Hughes , T., Eds.).Wiley/Interscience. , New York, (in press)..Google Scholar
McConnel, R.K., (1968). Viscosity of the mantle from relaxation time spectra of isostatic adjustment. Journal of Geophysical Research. 73, 7089-7105.CrossRefGoogle Scholar
Meguro, H., Yoshida, Y., Uchio, T., Kigoshi, K., Sugawara, K., (1963). Quaternary marine sediments and their geological dates with reference to the geomorphology of the Kronprins Olav Kyst. Antarctic Geology, SCAR Proceedings. 73-79.Google Scholar
Peltier, W.R., Andrews, J.T., (1976). Glacial isostatic adjustment—I. The forward problem. Geophysical Journal of the Royal Astronomical Society. 46, 605-646.CrossRefGoogle Scholar
Peltier, W.R., (1976). Glacial isostatic adjustment—II. The inverse problem. Geophysical Journal of the Royal Astronomical Society. 46, 669-705.CrossRefGoogle Scholar
Pirazzoli, P.A., (1977). Sea level relative variations in the world during the last 2000 years. Zeitschrift für Geomorphologie. 21, 284-296.CrossRefGoogle Scholar
Robin, G.de Q., (1977). Ice cores and climatic change. Philosophical Transactions of the Royal Society of London, Series B. 280, 143-168.Google Scholar
Schofield, J.C., (1964). Post-glacial sea-levels and isostatic uplift. New Zealand Journal of Geology and Geophysics. 7, 259-370.CrossRefGoogle Scholar
Shackleton, N.J., (1977). The oxygen isotope stratigraphic record of the Late Pleistocene. Philosophical Transactions of the Royal Society of London, Series B. 20, 169-182.Google Scholar
Smith, P.J., (1974). Changing views of mantle viscosity. Nature (London). 252, 99-100.CrossRefGoogle Scholar
Sugden, D.T., John, B.S., (1973). The ages of glacier fluctuations in the South Shetland Islands, Antarctica. Palaeoecology of Africa. 8, 139-159.Google Scholar
Thomas, R.H., (1976). Thickening of the Ross Ice Shelf and equilibrium state of the West Antarctic Ice Sheet. Nature (London). 259, 180-183.CrossRefGoogle Scholar
Walcott, R.I., (1973). Structure of the Earth from Glacio-isostatic rebound. Annual Review of the Earth and Planetary Sciences. 1, 15-37.CrossRefGoogle Scholar
Weeterman, J., (1974). Stability of the junction of an ice sheet and an ice shelf. Journal of Glaciology. 13, 3-11.Google Scholar