Author:
Short Susan K.,Andrews John T.
Abstract
A 3 m exposure of sediment containing organics was sampled near the settlement of Arctic Bay, Baffin Island, N.W.T. A total of seven radiocarbon dates have been obtained from the deposit. Three dates between 182.5 and 290 cm depth gave radiocarbon ages between 14,185 ± 760 and 16,849 ± 860. A date from 82.5 to 87.5 cm resulted in an age of 8635 ± 565. An apparent reversal in 14C dates may reflect folding of the sediments associated with the downslope creep of the deposit or rapid accumulation of organics. The three basal dates are the first terrestrial sediments from Baffin Island to date from older than ca. 10,000 BP and less than 20,000 BP. Analysis of the sediment for pollen indicated that it is generally sparse. The pollen assemblage is dominated by Salix, Cyperaceae, and Gramineae pollen and exotic pollen types {Pinus, Picea, Betula, and Alnus) occur sporadically throughout the section.
Reference38 articles.
1. Ager, T. A., 1982. Vegetational history of western Alaska during the Wisconsin glacial interval and the Holocene, p. 73-93. In D. M. Hopkins, J. V. Matthews, Jr., C. E. Schweger and S. B. Young, éd., Paleoecology of Beringia. Academic Press. New York.
2. Andrews, J. T. and Drapier, L., 1967. Radiocarbon dates obtained through Geographical Branch field observations. Geographical Bulletin, 9: 115-162.
3. Andrews, J. T. and Ives, J. D., 1978. "Cockburn" nomenclature and the late Quaternary history of the eastern Canadian Arctic. Arctic and Alpine Research, 10: 617-633.
4. Andrews, J. T., Davis, P. T., Mode, W. N., Nichols, H. and Short, S. K., 1981. Relative departures in July temperatures in northern Canada for the past 6,000 yr. Nature, 289: 164-167.
5. Andrews, J. T, Jull, A. J. T, Donahue, D. J., Short, S. K. and Osterman, L E., 1985. Sedimentation rates in Baffin Island fiord cores from comparative radiocarbon dates. Canadian Journal of Earth Sciences, 22: 1827-1834.
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