Скачать с ютуб Henrys Fork Caldera: Yellowstone's Last Caldera Eruption Completely in Idaho в хорошем качестве

Henrys Fork Caldera: Yellowstone's Last Caldera Eruption Completely in Idaho

Join geology professor Shawn Willsey as he takes you on a tour of the Henrys Fork Caldera, a ~20-mile wide caldera that formed 1.3 million years ago during a huge violent eruption that ejected 280 cubic miles of ash. This eruption was the second most recent of the three big Yellowstone eruptions over the last two million years. 00:00 caldera locations 00:20 intro, within the caldera 01:55 map of Yellowstone's three recent calderas (from my book, Roadside Geology of Idaho) 04:08 generalized model of Yellowstone caldera eruptions (also from same book) 09:25 tour of Henrys Fork caldera rim 11:15 intracaldera basalt flow 13:41 Mesa Falls Tuff along caldera flank (just outside caldera) You can order SIGNED copies of my books that cover this area: Geology Underfoot in Southern Idaho (a whole chapter on this area) and Roadside Geology of Idaho. Purchase here: https://shawn-willsey.square.site/ Support these videos! Your generous support allows me to travel to these locations and create videos. Send support via: PayPal: https://www.paypal.com/donate/?hosted... or click on the "Thanks" button above. or a good ol' fashioned check to: Shawn Willsey College of Southern Idaho 315 Falls Avenue Twin Falls, ID 83303