Columbia Gorge Mega-Floods, Tsunamis, Submarine Canyons and Shelf-Slope Landslides - Kosmographia

Published: Dec. 20, 2023, 11:10 a.m.

\u201cThe Randall Carlson\u201d socials, VoD titles, tours, events, podcasts, merch shop, donate: https://randallcarlson.com/links

Preview of recent and upcoming tours, including photos from Tennessee\u2019s Sequatchie Valley and Cumberland Plateau, promises to get people into caves and under secluded waterfalls, while continuing the tales of catastrophic flooding effects. Fall \u201924 tour into Columbia Gorge prompts RC recollections of an early pass thru a \u201cLand of Giants\u201d and his ongoing desire to understand the formation of Oregon\u2019s \u201cNook\u201d feature at the John Day River. Transitioning across the maps to the Atlantic Ocean, the crew marvel at myriad features along the Mid-Atlantic Continental Slope: a Late-Pleistocene 38 cubic-mile landslide, incised canyons that extend far into the depths, and Pyramids(?)! Lastly, earthquake-generated tsunamis in the Mediterranean Sea have been studied and the phenomenon of \u201ctsunami boulders\u201d is pondered.