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sinkhole |
Also found in: Wikipedia | 0.02 sec. |
sinkholeor sink or dolineDepression formed as underlying limestone bedrock is dissolved by groundwater. Sinkholes vary greatly in area and depth and may be very large. The two main varieties are those caused by the collapse of a cavern roof, and those caused by the gradual dissolving of rock under a soil mantle. Collapsed sinkholes generally have steep rock sides and may receive streams that then flow underground. Soil-mantled sinkholes are generally shallower; they may become clogged with clay and hold a small lake. sinkhole [′siŋk‚hōl] (geology) Closed surface depressions in regions of karst topography produced by solution of surface limestone or the collapse of cavern roofs. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Other factors such as sink holes, soil type, distance from fire protection and windstorm risk factors are also part of the system. Only these sink holes are not random: It's the pipes, stupid Composed of limestone rock, the region has many sink holes, caverns, and subterranean streams. |
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