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Sinkholes around the world - in pictures

From Guatemala to China, sinkholes come in all shapes and sizes

by Anonymousreply 1708/16/2013

Don't I know it!

by Anonymousreply 103/03/2013

Erosion, loss of its bedrock that leads to utter collapse of the (man) cave:

We need to add a picture of the Republican Party national headquarters.

by Anonymousreply 203/03/2013

Any comments about the Disney World sinkhole?

by Anonymousreply 308/15/2013

Have any of you ever been caught in a sinkhole.

by Anonymousreply 408/15/2013

Most Florida lake started out as sinkholes.

by Anonymousreply 508/15/2013

Insert insatiable bottom joke here.

by Anonymousreply 608/15/2013

Sooo... best to avoid Guatemala City then.

by Anonymousreply 708/15/2013

What about me?

by Anonymousreply 808/15/2013

Sinkholes are no more real than crop circles or UFOs. The earth is *not* hollow, girls, no matter how many faked photographs you put in your slideshow.

by Anonymousreply 908/15/2013

R9, Florida is limestone with water running through it. It is as hollow as hollow can be.

by Anonymousreply 1008/15/2013


by Anonymousreply 1108/15/2013

That said Bay Ridge was not a sinkhole but a watermain accident, most likely.

by Anonymousreply 1208/15/2013

Sinkholes occur anywhere where there is gypsum and limestone/dolostone bedrock, which is susceptible to erosion by groundwater and manmade intrusions (burst pipes, etc).

Look at a map. Much of the USA is built on such surfaces and karst (cave) structures. Florida is a sinkhole paradise. Ultimately made worse by dumping heavy building foundations on these fragile areas.

by Anonymousreply 1308/15/2013

I would say the space between Sarah Palin's ears is probably the most ravenous sinkhole on record.

by Anonymousreply 1408/15/2013

Whilst r14 is correct, the best thing to do if moving to a new area (or check your own out) is to look on a geology bedrock site on the internet maybe the US Geological Survey, find out the bedrock for your area.

If you are on sandstone, mudstone or any igneous (volcanic) bedrock you're on pretty solid ground. If you sit on evaporite rocks like limestone, dolomite or gypsum (especially gypsum), I wont say move, but it's more risky. Of course most people never experience a sinkhole in a lifetime spent living in such areas.

Here's a map of the US showing distribution of carbonate/evaporite rock types, all of which cause sinkholes.

Karst = An area of irregular limestone in which erosion has produced fissures, sinkholes, underground streams, and caverns.

by Anonymousreply 1508/15/2013

Sinkholes are so Florida.

by Anonymousreply 1608/16/2013

NatGeo better get over here fast, I got one forming at each end of my block.

by Anonymousreply 1708/16/2013
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