explain how carbon-14 isotopes in glacial sediments have documented the change in the size and shape of the North American ice sheet as it retreated northward across New England

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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In a couple of sentences, explain how carbon-14 isotopes in glacial sediments have documented the change in the size and shape of the North American ice sheet as it retreated northward across New England. In your explanation, draw a simple cartoon of the glacier's profile as it changes over time, and include some indication of the source of the carbon-14 and the location where the carbon-14 undergoes radioactive decay.
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