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Radiocarbon Dating of the Rate of Movement of Two Solifluction Lobes in the Ruby Range, Yukon Territory

Published online by Cambridge University Press:  20 January 2017

Charles S. Alexander  and
Larry W. Price
Charles S. Alexander
Affiliation:
Department of Geography, University of Illinois, Urbana, Illinois 61810
Larry W. Price
Affiliation:
Department of Geography, Portland State University, Portland, Oregon 97207
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Abstract

The rates of solifluction of two lobes in the Ruby Range have been determined by 14C dates of samples taken from buried organic layers in the lobes. Twenty-one dates are available from one lobe, and seven from another. When plotted against distance back from control points at the lobe fronts the dates show considerable scatter. In part the scatter is thought to be due to a potential age range of 340 ± 100 yr in the organic layers. Linear and polynomial regressions were calculated for the time/distance relationships shown by the dates. The rates of lobe advance established by these means for the lobe with seven dates are not thought to be reliable. Reasonably good estimates of movement rate were determined for the second lobe by both the linear and polynomial methods. However, the rates established by the two methods are quite similar. Because of this and other uncertainties it is difficult to draw inferences of climatic change from the changes in movement rate shown by the polynomial solution.

Type
Research Article
Information
Quaternary Research , Volume 13 , Issue 3 , May 1980 , pp. 365 - 379
Copyright
University of Washington

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