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sinkhole    音标拼音: [s'ɪŋkh,ol]
n. 阴沟的入口处,排水口,污水坑

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  • Sinkhole - Wikipedia
    A 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 is a sinkhole? | U. S. Geological Survey - USGS. gov
    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 ”
  • Sinkhole - National Geographic Society
    A 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
  • What causes sinkholes, and why are they so dangerous? - USA TODAY
    A 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
  • Sinkholes: causes, risks, and how to prevent them
    Sinkholes are enclosed depressions commonly formed by the subsurface dissolution of soluble rocks and or the downward displacement of materials These processes can lead to ground settlement or sudden surface collapse
  • Sinkholes: What They Are, How They Form, And Their Potential Dangers
    Sinkholes are sudden depressions or holes that appear on the Earth’s surface when the ground collapses These phenomena can cause significant damage to infrastructure and pose serious risks to human safety
  • What causes a sinkhole to form? - National Geographic
    Sinkholes typically form when naturally acidic rainwater erodes underlying bedrock, creating damage beneath the surface Their formation is most common in easily erodible karst terrains with
  • Sinkhole Facts - Science Notes and Projects
    A sinkhole is a depression or hole in the ground caused by the collapse of a surface layer, often due to the dissolution of underlying soluble rock such as limestone, dolomite, or gypsum These natural or manmade formations vary in size, shape, and depth, appearing suddenly or developing gradually over time
  • What is a sinkhole? A geotechnical engineer explains - The Conversation
    A sinkhole is basically a hole which appears to suddenly open up in the ground However, the process that leads to a sinkhole is not so sudden and may have been developing over a long period
  • Sinkholes: Causes, Types, Formation and Effects
    As the name suggests, sinkholes involve land sinking, causing holes on the ground These depressions or voids form when water erodes an underlying rock layer, particularly in cases where the rock consists of limestone, salt beds, or carbonate rock





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