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University of Michigan

Published online by Cambridge University Press:  03 June 2021

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Abstract

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Type
Other
Copyright
Copyright © The American Journal of Science

References

1 Carbonate date, not corrected for isotopic fractionation in carbonate.

2 2 Cross-check, C-126.

3 Cross-check, C-152.

4 Cross-check, C-247.

5 Cross-check, C-288.

6 Cross-check, GrN-1699.

7 Cross-check, A-21, A-22.

8 Cross-check, A-19.

9 Cross-check, GrN-2149.

10 Cross-check, A-60A, A-80B.

11 Cross-check, W-638.

12 Cross-check, GrN-2901, M-863B.