Cave Divers Reach 472 feet in Roaring River Spring

[ness]

https://www.joplinglobe.com/news/local_news/roaring-river-cave-divers-break-national-record-still-no-bottom-in-sight/article_96b7ed4c-461b-11ec-86aa-ff59b69cb925.html

https://www.joplinglobe.com/news/local_news/divers-continue-exploration-of-roaring-river/article_e741c27c-4663-11ec-8d9d-d300655ab702.html

 

 

[BilletHead]

13 minutes ago, ness said:

https://www.joplinglobe.com/news/local_news/roaring-river-cave-divers-break-national-record-still-no-bottom-in-sight/article_96b7ed4c-461b-11ec-86aa-ff59b69cb925.html

https://www.joplinglobe.com/news/local_news/divers-continue-exploration-of-roaring-river/article_e741c27c-4663-11ec-8d9d-d300655ab702.html

 

 

            Seen that on our local news also. Pretty neat/

[ness]

27 minutes ago, BilletHead said:

            Seen that on our local news also. Pretty neat/

Yeah, that's pretty cool stuff.

I get claustrophobic just reading about it.   

[jdmidwest]

Long time to hold your breath.  I wonder at what depth the water starts to boil from the heat of the earth's core?

[Gavin]

Saw that on the news the other day. They must really like what they do. That’s really deep for tank diving (14 atmospheres).

[bfishn]

4 hours ago, jdmidwest said:

... I wonder at what depth the water starts to boil from the heat of the earth's core?

Some deep geo wells have hit 100C just shy of 4km deep. It’s not that simple though. Assuming a mostly vertical water column of 4km (13,123 feet of head) like one might imagine RR to be, water at the bottom would be under 5600+ psi. Water boils at 100C only at sea level atmospheric pressure, it’s well over 700F at 5K+ pressure.

So yeah, it could be really, really deep, and you’d still not see any bubbles at the surface. 😉

The most likely depth limit is the boundary to the next geologic layer down, which is most likely a confining layer, or there wouldn’t be a spring there.

[jdmidwest]

10 hours ago, Gavin said:

Saw that on the news the other day. They must really like what they do. That’s really deep for tank diving (14 atmospheres).

Interesting to know if cave diving has same pressures as open water dives.  One would assume the same.

[Phil Lilley]

I wonder how this compares to other underwater caverns in the world...

[gotmuddy]

11 minutes ago, Phil Lilley said:

I wonder how this compares to other underwater caverns in the world...

according to goog this is the deepest: https://eos.org/research-spotlights/worlds-deepest-freshwater-cave-may-be-a-kilometer-deep

[ColdWaterFshr]

Fascinating subject.  I wonder about other Missouri springs.  Have they all been explored to their bottom?