Sinkholes

[amygdule]

An interesting documentary about the geology of sinkholes.

[spiceman]

YouTube has lots of movies showing sinkholes.
They are scary looking.

[amygdule]

Nov 27, 2017 22:41:23 GMT -5 spiceman said:

YouTube has lots of movies showing sinkholes.
They are scary looking.

Worm holes to the middle earth where the munchkins live.


We don't have sinkholes here
But we have Quick Sand
and It's scary too.

Out on the spit at low tide
You take a step and the bottom
Starts to jiggle like you're
Walking on Jello
Kind of weird to look at.

[amygdule]

Lake Peigneur drilling accident

[amygdule]

"Treasures Of The Earth: Gem Mining" - Nova Documentary

[amygdule]

"Australia's Desert of Rainbow Opals"

[grumpybill]

Nov 28, 2017 1:09:32 GMT -5 amygdule said:

Lake Peigneur drilling accident

Imagine the debates when, a million years from now, some rockhound finds a unique stone that only occurs in one small area.

Or even in few thousand years when an archeologist discovers an intact barge buried deep in the earth.

[metalsmith]

Nov 27, 2017 22:35:44 GMT -5 amygdule said:

An interesting documentary about the geology of sinkholes

Seems to bum out around 37 minutes then no sound. Repeated tries with no success.

Thanks for the link. Interesting stuff up to then. We have sinkholes here too 🤔

[amygdule]

Dec 3, 2017 4:17:55 GMT -5 metalsmith said:

Nov 27, 2017 22:35:44 GMT -5 amygdule said:

An interesting documentary about the geology of sinkholes

Seems to bum out around 37 minutes then no sound. Repeated tries with no success.

Thanks for the link. Interesting stuff up to then. We have sinkholes here too 🤔

Well, Crap. Sorry about that.

I recently saw a couple of shows from Channel 5 in the UK about Sinkholes.
It was interesting how all those old mine workings are failing and causing problems.

[WhiskeyZero]

Here is the Devil's Throat sinkhole in the Mojave desert near Mesquite, NV. This thing just suddenly opened up in the mid 90's. I couldn't imagine what it would be like to witness that.



I flew my drone over it:

[kk]

Dec 6, 2017 8:29:06 GMT -5 WhiskeyZero said:

Here is the Devil's Throat sinkhole in the Mojave desert near Mesquite, NV. This thing just suddenly opened up in the mid 90's.
I flew my drone over it:

Judging by the different distances of the fence to the hole, its still not done and still collapsing.

[grumpybill]

amygdule said:

It was interesting how all those old mine workings are failing and causing problems.

I live in an area that is riddled with old mines.
Although sinkholes are very rare, it's common for subsidence to cause major problems to structures built above them.
The old maps are often inaccurate or nonexistent. Pre-construction core borings sometimes reveal mines that no one knew were there.