Nick on the Rocks - Ape Cave

S4 E 5 Ape Cave
We’ll explore the third longest lava tube in the nation. Red hot lava built this cave during a massive explosion on Mt St Helens 2000 years ago.
Learn more about the Geology program at CWU: www.cwu.edu/geo...
Produced by Central Washington University - 2020

[@dishnpj3565]

Love watching Professor Nick! Miss my geology and geography classes from 30 years ago. This feeds my brain!

[@boblundgren7208]

I love the Nick on the Rocks series.

[@Blackwolf2111]

Thanks Professor Nick, Always enjoy the series… Hoping for more this year 2023!!

[@richardsweet7452]

I wasn't aware of these caves. Thanks Nick.

[@sharonwhiteley6510]

Please don't tire of your field or your passion for passing it on. I wonder if he ever worries about "critters" while crawling around or sitting on a rocky outcrop.

[@barblk1420]

Love your series! Am watching them all!

[@johnwilliamson2276]

Way too short! I was just relaxing into your video and it was over.

[@rosemariemann1719]

Always learn something new from Prof' Nick ! Even if you happen to open it twice, you're not disappointed, in fact, you're more likely to revise something you heard the first time !!! It's so good to see someone become such an inspiring teacher. Many thanks ! ☺️🇬🇧☺️🦉☺️🥀

[@GrayPlayer]

Thank you!

[@robertafierro5592]

It's IMMENSE!!

[@jerryvanderwier2310]

Ghank you for the background professor. I've climbed through those caves several times and they are more impressive than similar lava tubes found in Hawaii and other places. It is certainly amazing.

[@janicenorman6712]

Heading there in May, cant wait to see this lava tube!

[@robertafierro5592]

Awesome!!

[@ragnapodewski4694]

Haroun Tazieff regarded Basalt at Gunung Galungung!

[@samuelsparling878]

Thanks for sharing.

[@GrocMax]

Hey Nick- Have you heard about the big volcanic cave/tube near Granite Falls WA? Got busted for being a major marijuana growing operation in the mid 80's. On private property.

[@BracaPhoto]

But what happened to the lava in this tubes ? Where did it go?

[@jamesbaillargeon7404]

been there several times.the upper cave will challenge your rock scrambling skills!

[@-Cbomba-]

Amazing 😍

[@reverseuniverse2559]

Amazingly 2K yo and still there after several eruptions we know of

[@ianfisher5534]

Cool

[@rossdtool]

Am I having dejavu?

[@michaelkaiser4674]

5xx5 datil nm

[@whiskeymonk4085]

44zz xmr 77

[@michaelwoods8654]

How do lava tubes make any sense? "Evacuated lava tube" give me a break.

[@BlackCeII]

If you're kidding, go f yourself. If you're not, look it up! There's plenty of good research on it. You can see them being formed in Hawaii as we speak

[@stevenlester2606]

The secret is that the outside of a flow is exposed to the air whereas the middle of the flow isn’t, allowing it to remain hot enough to continue to flow, and empty the tube-like crust surrounded it, leaving the empty tube behind. There, now you know.

[@whiskeymonk4085]

Yes... you need a break. Start with the internet.

[@ReinoGoo]

The other secret is the incline of the tube and the resistance to the flow, making the pressure in the tube even.

[@Ipoetize]

The Ape Caves/Lava Tubes is the result of a Lava Flow Type called: "Malfic" and these type of flows are relatively thin flows they can move great distances, The speed of lava varies based primarily on its viscosity, the slope angle it follows, and its core temperature. In general, lava flows move slowly. Example: The typical speed for Hawaiian basaltic flow is 0.40 km/h (0.25 mph) and maximum speeds of 10 to 48 km/h (6 to 30 mph) on steep slopes Pāhoehoe (also spelled pahoehoe, from Hawaiian meaning "smooth, unbroken lava") is basaltic lava that has a smooth, billowy, undulating, or ropy surface. These surface features are due to the movement of very fluid lava under a congealing surface crust. A pāhoehoe flow typically advances as a series of small lobes and toes that continually break out from a cooled crust. It also forms lava tubes where the minimal heat loss maintains a low viscosity.