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Lab number
S-46
Material dated
wood; bois
Taxa dated
conifer
Locality
Lake Erie shore, Elgin County, Ontario
Map sheet
40 I/11
Submitter
A. Dreimanis
Date submitted
May 20, 2004
Measured Age
0
Normalized Age
0
δ13C (per mil)
-25.0
Significance
palaeobiology; paléobiologie
Context
layer of ice-contact gravel, 3-4 ft thick, 8 ft above the lake, 600 ft northeast of Port Talbot interstadial type site, with a mastodon tusk
Associated taxa
Mammalia: Mammut americanum
Comments
AdHi-VP, Port Talbot: The gravel containing a mastodon tusk is younger than S-7 (>25000 BP; McCallum, 1955), older than L-185B (28200 +/- 1500 BP; Broecker and Kulp, 1957), L-217B (24600 +/- 1600 BP; Broecker and Kulp, 1957), and W-177 (27500 +/- 1200; Rubin and Suess, 1955), and dates a glacial advance following the Port Talbot interstadial and preceding the Plum Point interstadial (Dreimanis, 1958a, 1958b). Another portion of the same sample was analyzed by the Lamont laboratory (L-440, >29500). Yet another portion was dated by the Groningen laboratory (Gro-2580, 44200 +/- 1500), confirming the suggestion by Olson and Broecker that this sample has a finite age.

References