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Dating Lake Mohave Artifacts and Beaches

Published online by Cambridge University Press:  20 January 2017

Claude N. Warren  and
John de Costa
Claude N. Warren
Affiliation:
Idaho State University, Pocatello, Idaho
John de Costa
Affiliation:
Idaho State University, Pocatello, Idaho
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Abstract

It is generally accepted that Lake Mohave artifacts date from the closing phase of the last deglaciation when the lake stood at its highest level. A re-evaluation of published data shows that Lake Mohave artifacts date from the overflow period, but only after the lake had abandoned the highest or 946-foot beach. A radiocarbon date of 9640 ± 240 years has been obtained from Anodonta shells at levels between 925 and 930 feet. These shells have been interpreted as remains of animals stranded en masse during the final recession of the Pluvial lake. No evidence for such a catastrophic event has been presented, and there is some evidence which suggests the opposite. The Anodonta shells appear to represent remains of dead animals deposited when the lake stood somewhat higher than 930 feet. It is apparent that an interdisciplinary approach, involving geology, paleolimnology, and palynology, as well as archaeology, is needed if man's place in the history of Lake Mohave is to be understood.

Type
Facts and Comments
Information
American Antiquity , Volume 30 , Issue 2Part1 , October 1964 , pp. 206 - 209
Copyright
Copyright © The Society for American Archaeology 1964

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