There is a new paper that illustrates the deglaciation of the north American ice
sheet complex in calendar years. It provides a basis for evaluating pseudoscience,
e.g. Saginaw Bay craterwrong, involving the Laurentide Ice Sheet. It is an open
access paper.

Dalton, A.S., Dulfer, H.E., Margold, M., Heyman, J., Clague, J.J., Froese, D.G.,
Gauthier, M.S., Hughes, A.L., Jennings, C.E., Norris, S.L. and Stoker, B.J., 2023.
Deglaciation of the north American ice sheet complex in calendar years based
on a comprehensive database of chronological data: NADI-1. Quaternary Science
Reviews, 321, p.108345.

[www.sciencedirect.com]

Yours,

Paul H.

"The past is never dead. It's not even past."
William Faulkner, Act 1, Scene III, Requiem for a Nun (1951)