Easterbrook (2010) A walk through geologic time from Mt. Baker to Bellingham Bay, WA: Chuckanut Editions, Bellingham, WA, 329 p. 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)
AA-25746 12860 ± 85
AA-25747 12785 ± 85
Beta-230133 11660 ± 60