Westgate, J. A., 1987, Compositional comparison of Old Crow Tephra, Sheep Creek Tephra, and White River Ash and its significance for the provenance of other widespread Beringian tephras [abs.]: in International Union for Quaternary Research, 12, Programme and abstracts, Ottawa, ON, Canada, July 31-Aug. 9, 1987, p. 288.
Citation Updated: 2004-12-29 01:14:50