Episode #048: Meandering Meltwater Musings and Lake Agassiz

Summary

The podcast explores the fascinating geological features known as drumlins, created by massive ice sheet meltwater. Host Randall Carlson and guest Jerome Lesemann discuss the historical significance of Glacial Lake Agassiz and the implications of megafloods on the landscape. They highlight how these features challenge conventional gradualist geological theories.

Key takeaways

• 1Jerome Lesemann discusses the formation and importance of drumlins.
• 2Glacial Lake Agassiz is a focal point for understanding megaflood dynamics.
• 3Features like relict flood channels and 'misfit' rivers question the Uniformitarian model of geology.
• 4The Palouse Hills in Washington serve as an analogy for studying crescentic forms mentioned by Lesemann.

Glossary terms

Source

Transcript excerpt

That's ancientnutrition.com, code protein. This is Cosmographia, the Randall Carlson Podcast. And welcome back, ladies and gentlemen, to Cosmographia, the Randall Carlson Podcast. I am Russ, and we are joined, as always, by the usual suspects. We've got Mike, the normal guy with us. Bradley, how are you doing, sir? Doing good? Yeah, pretty good. Drove in from Atlanta today, so a little weary, but I'm coming back. All right. Yeah, that's right. You went down to visit with Randall and have some steak, go on some excursions. Yep. Tried out some new menu items at the Wheelhouse Pub down there, and had a meeting with the how-to Mike came in from Oregon. So, yeah, had a very productive weekend. All right. And, Randall, I thought the last week's show with Dr. Lessman was fantastic. It was like a crash course in drumlins and subglacial flows, and, man, it was amazing. I knew it would be good. Yeah. I knew it would be good, yeah. The man knows his stuff. I thoroughly enjoyed it. I learned some things. And, contrary to some rumors that are going around, no, I don't know everything. In fact, as it turns out, I only know a very small part of a small part of a small part of everything. Ouch. Making us feel worse. I'm at least three orders of magnitude down the hierarchy from everything. Everything. Okay. Let's put it this way. I'm like three orders of magnitude down from omniscience. Omniscience, yeah. Okay. Yeah, omniscience, yeah. Yep. But I'm working on it. By the end of tonight's show, I may have moved up a rank. Yeah. All right. Three orders of magnitude down from infinity is not very much. That's right. It's still a really large number, I feel like. Yeah. ...

Excerpt from Kosmographia, Oct 15, 2020. Rights remain with the original creators. Hear the full episode at the source.