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Rock Climbing Photo: The Lost Portal in Pangea. Kinda creepy... The mir...
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By Roy Suggett
Jul 29, 2014
This geologic anomaly is being investigated. But if anybody does get "transported" via a worm hole in time and space...let me know! I often get frustrated with this planets time and space.
By bheller
From: SL UT
Jul 30, 2014
That's amazing! My guess is we're looking at a gas bubble (in cross-section) that solidified and was later injected with magma. Eerie indeed!
By Roy Suggett
Feb 3, 2015
So here is the definitive answer from Dr. Jessica Ball who is a volcanologist and has worked in the area: "I suspect it's a particularly symmetrical example of a hackle - a structure that forms where rocks break (or form joints): Some of these can look really ornamental.

I saw the comment about the gas, and I don't think this has anything to do with gas in the ash flow. Gas-related structures are usually things like elutriation pipes, where rising gases remove the fine material and leave a tube of coarser-grained clasts. Gas bubbles don't form in ash flows like that, and I've never heard of a case where a cooled vesicle was filled in by later magma (as mentioned in the comment); the contact with the hot material would likely destroy the original structure even if something like that were to happen.


Damn! I was hoping for a time portal!
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The Lost Portal in Pangea. Kinda creepy...
The mirror image of the portal is protruding out of the back of the small tower to the right.

Submitted By: Boissal on Jul 29, 2014
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