安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
|
- Sinkhole - Wikipedia
A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer
- What is a sinkhole? | U. S. Geological Survey - USGS. gov
What is a sinkhole? 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 ”
- What causes sinkholes, and why are they so dangerous? - USA TODAY
The search has revived national concern about the unpredictability of sinkholes Here's what you should know about sinkholes, how they're created and where they can happen How do sinkholes
- Sinkholes: Causes, Types, Formation and Effects
Sinkholes involve land sinking, causing holes on the ground They are cavities or pits in the ground that form when water erodes an underlying rock layer, or if the rock is limestone, salt beds, or carbonate rock, which can naturally dissolve by groundwater circulating through them
- Sinkhole - Education | National Geographic Society
Sinkholes vary from shallow holes about one-meter (three-feet) deep, to pits more than 50 meters (165 feet) deep Water can drain through a sinkhole into an underground channel or a cave When mud or debris plugs one of these underground caves, it fills with water to become a lake or a pond
- Sinkholes: What They Are, How They Form, And Their Potential . . .
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
- Sinkholes: How Do They Form and Types of Sinkholes
Sinkholes are pits in the ground that occur in areas where water collects without external drainage Essentially, a sinkhole is any hole in the ground formed by erosion and the drainage of water It can be just a few meters across or large enough to swallow a whole building
- Sinkhole | Formation, Types, Occurrence » Geology Science
Sinkhole is a ground that is formed by the collapse of the surface layer and has no external drainage When it rains, the water stays in the sinkhole Sinkholes can range from a few feet to hundreds of acres and less than 1 to 100 feet deep
|
|
|