Cintos

The saginaw impact hypothesis is indeed a product of “citizen scientists”. Outsiders, if you wish. After 15 years of proposing such a scenario over two dozen GSA/AGU/LPSC meeting talks and posters, the GSA has published two chapters in a recently released Special Paper 553 to codify the hypothesis. The GSA expresses their confidence that the work is "addressing an embryonic, speculative, but observationally supported, new concept worthy of further investigation." Chapter 23 is open access: https://doi.org/10.1130/2021.2553(23) and Chapter 24 (30 pages) is all of $9.95 to the GSA if you have no subscription available: https://doi.org/10.1130/2021.2553(24) Given its status as a simple hypothesis, feel free to continue the five decade-old search for the 788,000 year old (i.e., yesterday) Australasian Tektite astrobleme in Southeast Asia.