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The publication of this research. One possibility discussed in the publication is that the sudden influx of freshwater from Lake Agassiz was caused by the Perk
by tigereyeTO 1y ago
The publication of this research.
One possibility discussed in the publication is that the sudden influx of freshwater from Lake Agassiz was caused by the Perkins Louisiana impact.
- cluckindan 1y agoIt happened at the end of an ice age, when mile-thick glaciers were melting away. That’s a lot of fresh water going to the oceans.
- adastra22 1y agoThe argument is that the impact event(s) are WHY the ice age ended.
- dr_dshiv 1y agoOhhh… cool!
- cluckindan 1y ago… and widely criticized as a creationist theory.
- adastra22 1y agoWhich has nothing to do with the legitimate scientific question of whether an impact triggered the interglacial warming period we're currently in.
- cluckindan 1y agoThe point is that it is not a legitimate scientific question, as those posing it are disregarding all evidence for geological and cosmological causes for rapid deglaciation. The YD impact hypothesis is motivated by creationist thinking (hyperbolically ”god threw a stone at us to relieve mankind of ice”) and the idea has been thoroughly refuted. Clinging to beliefs when there is ample evidence to the contrary is the very opposite of the scientific method.
- adastra22 1y agoThe original paper proposing a YD impact was serious science put forward by serious academics, AFAIK: https://pmc.ncbi.nlm.nih.gov/articles/PMC1994902/ https://pmc.ncbi.nlm.nih.gov/articles/PMC1994902/ That it was later a cause taken up by creationists is annoying, but it has no bearing on the scientific question (which is as yet unsettled).
- cluckindan 1y agoToo bad Dr. Firestone seems to have been the lead author in many articles which have been based on data that could not be reproduced by later authors. E.g. https://www.pnas.org/doi/10.1073/pnas.0908874106 https://www.pnas.org/doi/10.1073/pnas.0908874106