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Sinkhole

en.wikipedia.org/wiki/Sinkhole

A sinkhole, also known as a cenote, sink, sink-hole, shakehole, swallet, swallow hole, or doline is a depression or hole in the ground ...

How Sinkholes Form - St. Johns River Water Management District

www.sjrwmd.com/watersupply/howsinkholesform.html

As the limestone dissolves, pores and cracks are enlarged and carry even more acidic water. Sinkholes are formed when the land surface above collapses or ...

www.ask.com/youtube?q=How Are Sinkholes Formed?&v=tQvv8YFCGsY
Mar 2, 2013 ... Sinkholes are eating up buildings! You've seen 'em on the news, maybe even in your own neighborhoods... but what exactly causes them in ...

Who, What, Why: How are sinkholes formed? - BBC News

www.bbc.com/news/magazine-21600410

Mar 4, 2013 ... A Florida man whose bedroom was engulfed by a sinkhole as he slept is presumed dead. But how do these sinkholes form?

Sink Holes | Weather Wiz Kids

www.weatherwizkids.com/?page_id=1331

Sinkholes are pits in the ground that form in areas where water gathers without external drainage. ... Humans are also responsible for the formation of sinkholes.

How Sinkholes Work | HowStuffWorks

science.howstuffworks.com/nature/natural-disasters/sinkhole.htm

Most sinkholes occur in areas where the bedrock is formed from soft minerals and rocks like salt, gypsum, limestone, dolomite or others belonging to the ...

Why Sinkholes Open Up - National Geographic News

news.nationalgeographic.com/news/2013/08/130812-florida-sinkhole-disney-world-explainer-urban-science/

Aug 13, 2013 ... Get the science behind sinkholes and which areas are more prone to them. ... Sometimes in karst areas [irregular landscapes formed when ...

Sinkholes, from USGS Water-Science School

water.usgs.gov/edu/sinkholes.html

Picture of a sinkhole that formed below part of a house. A sinkhole is an area of ground that has no natural external surface drainage--when it rains, all of the ...

The Science of Sinkholes | Science Features - U.S. Geological Survey

www.usgs.gov/blogs/features/usgs_top_story/the-science-of-sinkholes/

Mar 11, 2013 ... A recent devastating sinkhole in Florida has raised questions and ... soluble rocks with potential for cave and natural sinkhole formation.

How Do Sinkholes Form? - Live Science

www.livescience.com/9932-sinkholes-form.html

Jun 1, 2010 ... Like all sinkholes, the one in Guatamala City formed when a swath of land collapsed, leaving behind a crater-like depression in the ground.

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Causes, Effects and Types of Sinkholes - Conserve Energy Future

www.conserve-energy-future.com

Humans are also responsible for the formation of sinkholes. Activities like drilling, mining, construction, broken water or drain pipes, improperly compacted soil ...

What are sinkholes, how do they form and why are we seeing so ...

www.independent.co.uk

Feb 18, 2014 ... The UK seems to be suffering from a plague of sinkholes. ... Naturally, it's the latter type that create headlines, but both varieties are formed by ...

What Sinkholes Are and Why They Are Dangerous - ZME Science

www.zmescience.com

Jan 9, 2016 ... The most impressive sinkholes form in thick layers of homogenous limestone. Their formation is facilitated by high groundwater flow, often ...