💧🌏 Greg Cocks
How Did The Great Lakes Form? Scientists Think They Figured It Out
--
https://www.earth.com/news/how-did-the-great-lakes-form-surprising-new-clues-have-emerged/#google_vignette <-- shared technical link
--
https://doi.org/10.1029/2024GL110777 <-- shared paper
--
#geology #mapping #structuralgeology #USA #Canada #GreatLakes #NorthAmerica #CapeVerde #hotspot #tectonics #magma #Superior #Michigan #Huron #Erie #Ontario #freshwater #lake #mantle #formation #pangaea #supercontinent #remotesensing #geophysics #continent #kimberlites #seismicvelocitymodel #model #modeling #plume #lithosphere #glacial #glacier #anisotropy
How did the Great Lakes form? Scientists think they figured it out

New research suggests an ancient hotspot helped shape the Great Lakes, challenging traditional formation theories.

Earth.com
Feb 15 at 2:39amWeb
Show threadArtemisFeb 15
@GregCocks that's cool! Tthe article at least really didn't answer any questions about how a hotspot could possibly create lakes like that. They're not caldera lakes, so I'd be very interested in theories as to how else a hotspot could help create then
Show threadLate_SettlerFeb 15

@GregCocks
My reading of it is that the researchers aren't completely understanding of the relationship either. It's likely just one of several factors that resulted in the geology of the area we see today.

I might have missed it on the read but to add on we do know already that Superior exists as a result of being part of a rift system that had halted back in the Precambrian.