Why Isn't Mount Denali a Volcano?

Alaska has the most volcanoes out of all the US states, but researchers think they don't have enough. Here's the weird science behind looking for Alaska's volcanoes, and what we've learned about volcanism along the way.

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[emyra_]

Niba is an amazing presenter! I hope we get to hear more from her in the future!

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[bobpickering]

Great presentation.
I understand that the natives named the mountain Denali, meaning the high one. The state of Alaska recognized the native name, and mountaineers generally called it Denali. For a long time, the federal government called it Mt. McKinley, but they eventually recognized Denali, making it unanimous. It took two attempts, but I’ve been on the summit of Denali. Until today, I had never heard anyone call it MOUNT Denali.

[akpsyche]

As someone from Alaska, it’s always nice to see an episode focusing on something from my home state.

[PlayNowWorkLater]

Fun fact. There is some brilliant research by Karin Sigloch whose Baja-BC model has the Yakitat plate you mention as subducting below Denali, that it once was connected to another plate that subducted below Washington State. When they were connected it was part of a sea floor spreading, similar to the mid Atlantic sea floor spreading. Also similar to the mid Atlantic, with Iceland sitting on top of that ridge (and hotspot) there was a similar large island called Siletzia. Eventually it split in half with the sea floor spreading, half of it accreted to Washington, and the other half became Yakitat and made its way to Alaska and started subducting. The Interesting connection to both these places is they BOTH HAVE VOLCANIC GAPS. There has to be a connection there! Most of what I’ve learned about Baja-BC, Siletzia and Yakitat has been from Nick Zentner’s YouTube channel, online classes, lectures and series. I’m fascinated by the idea that this island called Siletzia, which essentially was a large collection of Basaltic Lava flows, like Iceland, could be responsible for blocking volcanoes from forming. Very interesting correlation between Washington and Alaska. Gaps between volcanoes.

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[semaj_]

That was really interesting! I always wondered why, with all the volcanoes in Alaska, the tallest mountain there wasn't also one. I'd love to see Denali in person one day. Also I really enjoyed Niba's presentation! I hope we can see more of her soon.