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What are small crystal-lined spheres of silica rock that sometimes occur in limestone called?
These small crystal-lined spheres are called geodes. They form when minerals crystallize inside a cavity within the limestone rock.
Is a thin cavity in a rock showing where a shell has decayed a fossil?
No, a thin cavity in a rock showing where a shell has decayed is not considered a fossil. Fossils are the preserved remains or traces of ancient organisms, such as bones, shells, or imprints, that have been naturally preserved in rock or sediment over time. The empty space left behind by a decayed shell would be considered a mold or cast, not a fossil.
What is a hollow space in a rock?
A hollow space in a rock is called a vug or a vuggy. It is typically formed when minerals dissolve or are weathered away, leaving a cavity within the rock. Sometimes, vugs can be lined with crystals or other minerals.
Caused by excessive pressure from overlying structures over a cavern?
This condition is often referred to as "cavern collapse" or "cavern failure." It occurs when the weight of overlying materials, such as soil or rock, exceeds the structural integrity of the cavern, leading to ceiling collapse or subsidence. Factors contributing to this issue can include geological instability, erosion, or human activities like mining. Proper geological assessments and engineering solutions are essential to mitigate the risks associated with cavern collapse.
How is rock salt separated industrially?
Rock salt is separated industrially through a process called solution mining or cavern mining. This involves injecting water into underground salt deposits to dissolve the salt and then pumping the saltwater solution to the surface. The solution is then evaporated to recover the rock salt.
How long does it take to build a rock cavern?
Rock caverns are not built they are eroded out of solid rock by natural processes.
What is a rock cavity called?
Vug
What is a small rock cavity called?
Vug
What is a subterranean cavern?
The word "subterranean" is superfluous by definition, but essentially a cavern is a large void in the rock. Normally the term is applied a bit loosely to refer to particularly long, natural caves with many large chambers and passages; but is sometimes used to describe very large, man-made, underground chambers.
What is a cavity in rock where a plant or animal was buried?
It is called a mold.
Why did these caverns and sinkholes form?
Caverns and sinkholes typically form in areas with soluble rock such as limestone, where water dissolves the rock over time. Caverns are created by the slow dissolution of underground rock, while sinkholes form when the roof of a cavern collapses or the ground above a cavity caves in. Both processes are part of the natural geological phenomenon of karst topography.
What is an empty cavity in rock where a plant or animal was buried?
It is called a mold.
What type of rock is the black chasm cavern in?
it is limestone
What are caverns?
a cave is like an arch formed by the erosion of the sea. +++ It may be, but a cave properly is any natural, subterranean cavity of humanly-enterable size, and in scale anything from a small sea-cave (as above) to vast systems of passages and chambers like Mammoth Caves.
What is a cavern roof?
A cavern roof is the uppermost part of a cave that forms the ceiling of the underground chamber. It is typically formed by the natural processes of erosion, weathering, and water seepage over time. Cavern roofs can vary in appearance and structure depending on the type of rock or material they are composed of.
What are antonyms of dungeon?
temple. Another word for dungeon is oubliette which is French for "the forgotten place". Prisoners were held in oubliettes to be "forgotten".
What are the ratings and certificates for Fraggle Rock - 1983 The Cavern of Lost Dreams 3-19?
Fraggle Rock - 1983 The Cavern of Lost Dreams 3-19 is rated/received certificates of: Australia:G
