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Bookmark or Share- Sinkhole - WikipediaA sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer. The term is sometimes used to refer to doline , enclosed depressions that are also known as shakeholes , and to openings where surface water enters into underground passages known as ponor , swallow hole or swallet .
- What causes sinkholes, and why are they so dangerous? - USA TODAYA sinkhole is a hole or deep depression in the ground that opens up when layers of certain types of rock – usually limestone, carbonate rock and salt beds – dissolve beneath the surface and ...
- I have (or think I have) a sinkhole on my property. What should I do?A sinkhole is a depression in the ground that has no natural external surface drainage. Basically, this means that when it rains, all of the water stays inside the sinkhole and typically drains into the subsurface. Sinkholes are most common in what geologists call, “ karst terrain.”
- Sinkholes | U.S. Geological Survey - USGS.govA sinkhole is an area of ground that has no natural external surface drainage--when it rains, the water stays inside the sinkhole and typically drains into the subsurface. Sinkholes can vary from a few feet to hundreds of acres and from less than 1 to more than 100 feet deep.
- Sinkhole - National Geographic SocietyA sinkhole is a hole in the ground that forms when water dissolves surface rock. This sinkhole sits in the Yucatan Peninsula in Mexico. Natural sinkholes in limestone, like this one, are called cenotes. People of Mexico have been using the freshwater that collects in cenotes since Maya times.
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