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Problems of Interpreting Radiocarbon Dates from Dead-Ice Terrain, with an Example from the Puget Lowland of Washington

Published online by Cambridge University Press:  20 January 2017

Stephen C. Porter  and
Robert J. Carson III
Stephen C. Porter
Affiliation:
Department of Geological Sciences, University of Washington, Seattle, Washington USA
Robert J. Carson III
Affiliation:
Department of Geosciences, North Carolina State University, Raleigh, North Carolina USA
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Abstract

Radiocarbon dates of organic matter collected from ablation till or from the base of peat bogs in dead-ice deposits may postdate retreat of an active glacier terminus by hundreds or even thousands of years, and therefore provide only minimum estimates for the time of glacial maximum and the beginning of ice recession. Logs incorporated in Vashon till close to the drift border postdate recession of the Puget Lobe of the Cordilleran Ice Sheet by some 1400 years, and probably were buried when drift-mantled stagnant ice melted away, causing collapse of a superglacial forest.

Type
Original Articles
Information
Quaternary Research , Volume 1 , Issue 3 , September 1971 , pp. 410 - 414
Copyright
University of Washington

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References

Carson, R.J. (1970). “Quaternary Geology of the South-Central Olympic Peninsula, Washington.” Unpublished doctoral dissertation, University of Washington.Google Scholar
Clayton, Lee (1962). Glacial geology of Logan and McIntosh counties, North Dakota. North Dakota Geological Survey Bulletin 37, 84 pp.Google Scholar
Clayton, Lee (1967). Stagnant-glacier features of the Missouri Coteau in North Dakota. North Dakota Geological Survey Miscellaneous Series 30, 25–46.Google Scholar
Easterbrook, D.J. (1966). Radiocarbon chronology of late Pleistocene deposits in northwest Washington. Science 152, 764–767.Google Scholar
Florin, M., and Wright, H.E. Jr. (1969). Diatom evidence for the persistence of stagnant glacial ice in Minnesota. Geological Society of America Bulletin 80, 695–704.CrossRefGoogle Scholar
Heusser, C.J. (1960). Late-Pleistocene environments of North Pacific North America. American Geographical Society Special Publication 35, 308 pp.Google Scholar
Matthes, F.E. (1948). Moraines with ice cores in the Sierra Nevada. Sierra Club Bulletin 33 (No. 3), 87–96.Google Scholar
Mullineaux, D.R., Waldron, H.H., and Rubin, Meyer (1965). Stratigraphy and chronology of late interglacial and early Vashon glacial time in the Seattle area, Washington. U.S. Geological Survey Bulletin 1194-0, 10 pp.Google Scholar
Østrem, Gunnar (1965). Problems of dating ice-cored moraines. Geografiska Annaler 47, 1–38.CrossRefGoogle Scholar
Østrem, Gunnar, and Arnold, K. (1970). Ice-cored moraines in southern British Columbia and Alberta, Canada. Geografiska Annaler 52, Ser. A, 120–128.CrossRefGoogle Scholar
Porter, S.C. (1970). Glacier recession in the southern and central Puget Lowland, Washington, between 14,000 and 13,000 years B. P. Abstracts, First Meeting American Quaternary Association (AMQUA), Bozeman, p. 107.Google Scholar
Reid, J.R. (1967). Glaciers—“Living and dead”. Proceedings of the North Dakota Academy of Sciences 21, 42–56.Google Scholar
Reid, J.R. (1970). Geomorphology and glacial geology of the Martin River Glacier, Alaska. Arctic 23, 254–267.Google Scholar
Russell, I.C. (1893). Malaspina Glacier. Journal of Geology 1, 219–245.Google Scholar
Russell, I.C. (1897). “Glaciers of North America.” Ginn and Co., Boston, Massachusetts.Google Scholar
Sharp, R.P. (1958). The latest major advance of Malaspina Glacier, Alaska. Geographical Review 48, 16–26.Google Scholar
Wright, H.E. Jr., Winter, T.C., and Patten, H.L. (1963). Two pollen diagrams from southeastern Minnesota; problems in the regional lateglacial and postglacial vegetational history. Geological Society of America Bulletin 74, 1371–1396.Google Scholar