Ridge et al. (1999) Géographie physique et Quaternaire, 53 : 79-106 / Ridge et al. (2001) Geological Society of America Special Paper 351 : 171-189 / Ridge et al. (2012) American Journal of Science, v. 312, 685–722 per Dalton et al. 2020-An Updated Radiocarbon-Based Ice Margin….

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
GX-23642 10040 ± 230 -26.5
GX-23765 11530 ± 95 -27.0