Age verification of the Lake Gribben forest bed and the Younger Dryas Advance of the Laurentide Ice Sheet

• Published in: Canadian Journal of Earth Sciences
• Main Authors: Lowell, Thomas V, Larson, Graham J, Hughes, John D, Denton, George H
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1999
• Subjects: North Bay; Ice Sheet
• Online Access: http://dx.doi.org/10.1139/e98-095; http://www.nrcresearchpress.com/doi/pdf/10.1139/e98-095

Analysis of nine wood samples from the Lake Gribben forest bed near Lake Gribben, Michigan, yielded a combined age of 10 025 ± 100 14 C years BP, which confirms and refines prior age estimates for the bed. The stratigraphic position of these samples below a prograding ice-contact fan indicates the t...