Figure 4. Great Hill moraine in Kennebunkport, Maine October 7, 1984. This moraine contains till at the bottom and top, with a marine mud layer in the middle of the deposit. Shells in the marine mud were radiocarbon dated to 13,830 yr B.P. (Stuiver and Borns, 1975), and established the time of deglaciation of the Maine coast (Thompson and Borns, 1985).
Last updated on October 6, 2005