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River Ice as a Taphonomic Agent: An Alternative Hypothesis for Bone “Artifacts”1

Published online by Cambridge University Press:  20 January 2017

Robert M. Thorson  and
R. Dale Guthrie
Robert M. Thorson
Affiliation:
Museum and Geology/Geophysics Program, and Institute of Arctic Biology and Biology Department, University of Alaska, Fairbanks, Alaska 99701
R. Dale Guthrie
Affiliation:
Museum and Geology/Geophysics Program, and Institute of Arctic Biology and Biology Department, University of Alaska, Fairbanks, Alaska 99701
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Abstract

The annual freezeup and violent breakup of temperate and high-latitude rivers produces unique geomorphic features that can be recognized in ancient sediments. The forces and materials involved in the breakup process could modify entrained bones in ways similar to those attributed to human activity. An intuitive taphonomic model is developed to explain how river ice may affect bones, and to predict the modifications expected. Partial testing of the model by experiments designed to simulate river breakup produced bone modifications such as fractures, flakes, facets, striations, isolated cuts, and polish. The taphonomic effects of river ice must be discounted prior to the interpretation of such features as human in origin.

Type
Research Article
Information
Quaternary Research , Volume 22 , Issue 2 , September 1984 , pp. 172 - 188
Copyright
University of Washington

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Footnotes

1

Presented at the symposium “Taphonomic Analysis and Interpretation in North American Pleistocene Archaeology” held in Fairbanks, Alaska, April 1982.

References

Ashton, G.D. (1978). River ice Annual Reviews of Fluid Mechanics 10 369 392 CrossRefGoogle Scholar
Ashton, G.D. (1979). River ice American Scientist 67 38 45 Google Scholar
Benson, C.S. Osterkamp, T.E. (1974). Underwater ice formation in rivers as a vehicle for sediment transport Hood, D.W. Kelley, E.J. Oceanography of the Bering Sea Institute of Marine Sciences University of Alaska 401 402 Google Scholar
Bonnichsen, R. (1979). Pleistocene Bone Technology in the Beringian Refugium Archaeological Survey of Canada, Paper No. 89Google Scholar
Gilfilian, R.E. Kline, W.L. Osterkamp, T.E. Benson, C.S. (1975). Ice formation in a small Alaska stream Geophysical Institute Contribution Series A 422 University of Alaska Google Scholar
Irving, W.N. (1978). Pleistocene archaeology in eastern Beringia Bryan, A.L. Early Man in America from a Circum-Pacific Perspective. Dept. of Anthropology, University of Alberta, Occasional Paper No. 1. Archaeological Researches International Edmonton 96 101 Google Scholar
Michel, B. (1971). Winter Regime of Rivers and Lakes U.S. Army CRREL Monograph III-Bla Google Scholar
Morlan, R.E. (1980). Taphonomy and Archaeology in the Upper Pleistocene of the Northern Yukon Territory: A Glimpse of the Peopling of the New World Archaeological Survey of Canada Paper No. 94Google Scholar
Nibler, G.J. (1980). The spring breakup Weatherwise 33 207 209 Google Scholar
Osterkamp, T.E. (1977). Frazil-ice nucleation by mass-exchange processes at the air-water interface Journal of Glaciology 19 619 625 Google Scholar
Thorson, R.M. Dixon, E.J. (1983). Alluvial history of the Porcupine River, Alaska: Role of Glacial-lake overflow from northwest Canada Geological Society of America Bulletin 94 576 589 Google Scholar
Williams, J.R. (1955). Observations of freezeup of the Yukon River at Beaver, Alaska Journal of Glaciology 2 488 495 Google Scholar