Sinkholes form typically as limestone dissolves. A caldera is created by the collapse of volcanic vault ceilings.
A large hole in the ground formed when the roof of a cavern collapses is known as a sinkhole. Sinkholes can vary in size and are typically caused by natural processes such as erosion and the dissolution of soluble rocks like limestone.
sinkhole
Two features formed by underground weathering are caves and sinkholes. Caves are formed by the dissolution of limestone or other soluble rocks, creating underground chambers and passages. Sinkholes are depressions in the ground that form when the roof of an underground cavern collapses.
A sinkhole is formed when the roof of a cave collapses.
The circular depression that forms when the roof of a cavern collapses is called a "sinkhole." Sinkholes occur due to the erosion of soluble rocks, such as limestone, by water, leading to the eventual collapse of the ground above. They can vary in size and can pose risks to nearby structures and ecosystems.
A sinkhole forms.
A large hole formed when a roof of a cave collapses.
Its called a "caldera".
A large hole formed when a roof of a cave collapses.
Shakehole or Sinkhole - when the collapse extends to the surface. (Not all cave roof collapses disturb the surface above.)
Caves are underground. They are big long holes underground. Sometimes, for some unknown reason, the roof of the cave can no longer support the weight of the ground above it and the ground collapses down into the cave. The land sinks. It fills the hole. Where there was a cave, there is now solid ground. Where there was land, there is now a big hole. So, you have a sinkhole when the roof of a cave collapses.
The calcium deposit formed from water dripping through the roof of a cavern is called a stalactite. Stalactites hang from the roof of the cave and are formed as mineral-rich water drips down and leaves behind calcium deposits that slowly build up over time.