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- Sinkholes are often saucer-shaped hollows that are the result of some kind of collapse or removal of an underlying layer of rocks that used to support the layer of material at the surface. However, sinkholes can appear in a variety of different shapes and settings depending on the composition of the rocks and different interacting processes.
www.bgs.ac.uk/discovering-geology/earth-hazards/sinkholes/?viewFullSite=yesUnderstanding sinkholes and karst - British Geological Survey
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There are several different types of sinkhole (also known as dolines) caused by different processes, including dissolution, collapse and erosion. Dissolution. Some sinkholes result from the surface dissolution of soluble rock. For example, limestone rocks dissolve when attacked by rainfall or groundwater that is acidic.
Sinkholes are often saucer-shaped hollows that are the result of some kind of collapse or removal of an underlying layer of rocks that used to support the layer of material at the surface.
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 are common where the rock below the land surface is limestone or other carbonate rock, salt beds, or in other soluble rocks, such as gypsum, [11] that can be dissolved naturally by circulating ground water. Sinkholes also occur in sandstone and quartzite terrains.
Apr 8, 2024 · 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...
Jan 9, 2016 · They are basically natural depressions or holes in the Earth’s surface, typically caused by karst processes. Karst processes occur when bedrocks are soluble. In practical terms, this means that...
Jul 3, 2024 · A sinkhole is a hole in the ground that forms when water dissolves surface rock. Often, this surface rock is limestone , which is easily eroded , or worn away, by the movement of water. In a landscape where limestone sits underneath the soil, water from rainfall collects in cracks in the stone.
