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History
- Published online September 1, 1962.
Copyright & Usage
GeoRef, Copyright 2006, American Geological Institute. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States
Author Information
- G. C. Kennedy,
- G. J. Wasserburg,
- H. C. Heard and
- R. C. Newton