Episode #046: Potholes and Mid-continent Megafloods - Lake Agassiz Spillways
6October 2, 2020
Summary
This podcast episode delves into the catastrophic drainings of Glacial Lake Agassiz and the energy impulses that triggered megafloods in North America. The hosts explore geological features like oversized spillways and underfit rivers, linking them to the delicate balance of ancient ice dam structures. Listeners are introduced to the extensive drumlin fields of Canada, setting the stage for a deeper discussion with a special guest in the next episode.
Key Takeaways
- 1Events surrounding the catastrophic drainings of Glacial Lake Agassiz
- 2Investigation of oversized spillways in the Dakotas, Minnesota, and Wisconsin
- 3Exploration of underfit rivers and massive potholes along the St. Croix River
- 4Critical assessment of the current model of Lake Missoula and its Ice Dam
- 5Introduction to Canada's extensive drumlin fields and their significance
- 6Mention of the Younger Dryas Impact Hypothesis and its implications
Description
This podcast episode delves into the catastrophic drainings of Glacial Lake Agassiz and the energy impulses that triggered megafloods in North America. The hosts explore geological features like oversized spillways and underfit rivers, linking them to the delicate balance of ancient ice dam structures. Listeners are introduced to the extensive drumlin fields of Canada, setting the stage for a deeper discussion with a special guest in the next episode.