When the Earth Had Supermountains

Supermountains are so ridiculously enormous that, as far as we know, they’ve only ever formed twice, far back in deep time, and they lasted for just a small fraction of our planet’s history. And both of the times when Earth had supermountains seem to coincide with some of the most profound evolutionary shifts in the history of life. Check out Weathered's Latest over on PBS Terra:    • Is This the Most Dangerous River in America?   You can find PBS's Earth Month playlist here!    • Earth Month from PBS   Globe reconstructions by Carl August Wingårdh: https://basaltweaver.myportfolio.com/ ***** PBS Member Stations rely on viewers like you. To support your local station, go to http://to.pbs.org/DonateEons ***** Eons is a production of Complexly for PBS Digital Studios. Super special thanks to the following Patreon patrons for helping make Eons possible: Dennis Dawson, Roatana, Sarah Ellis, Collin Dutrow, Nate Chisholm, Sara Lance, Yibrán Arumir, Stephen A Muth III, tara thara, John Hildebrandt, Melodie Chen-Glasser, Susan Freund, Casey Hague, William Sunderland, Kerry Conneely, Lycoperdon perlatum, Lea Nisay, Nicholas Arger, Eric Younge, Annemiek Arkema, Elyssa, John D Elias, Willie, Beth-Ann Cheney, IAmHere, Nquiztor, lyric1981, SKS PHD, Eric Edwards, Jennifer Courtemanche, Steve Hill, Ruth Orr, Eric Franklin, raus , Deanna Hernandez, Sarah Grunow-Mau, Walter Ray-Dulany, John Celio, Lianne Lairmore, Kevin Lacson, Christopher Samuel, Douglas B, Mary Sammartino , Gizmo, Karen Farrell, Nathan Paskett, Jason Rostoker, Derek Helling, Brian Clubb, Irene Wood, Hillary Ryde-Collins, Steven Kern, AllPizzasArePersonal, Stephanie Schlea, Aaditya Mehta, A.B. Heckert, Jeff Graham, Mary Tevington, Yu Mei, Duane Westhoff, Albert Folsom, Alex Hackman, Nomi Alchin, John H. Austin, Jr., Betsy Radley, Nick Ryhajlo, Dan Caffee If you'd like to support the channel, head over to   / eons   and pledge for some cool rewards! Want to follow Eons elsewhere on the internet? Facebook -   / eonsshow   Instagram -   / eonsshow   Bluesky - https://bsky.app/profile/pbseons.bsky... #Eons References: https://docs.google.com/document/d/1Y...