Stunning new research reveals the Great Lakes pre-date North America
2025-03-07
It is widely known by lovers of the Great Lakes that their unique shape was caused by glaciers melting and receding northward. That was approximately 20,000 years ago. However, new research published in Geophysical Research Letters suggests this treasured landmass started forming hundreds of millions of years ago, long before the theory of plate tectonics, when Pangea likely separated into the continents we recognize today.
Great Lakes Now
https://www.greatlakesnow.org/2025/03/stunning-new-research-reveals-the-great-lakes-pre-date-north-america/