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Why do caves form in only certain types of rocks?
Caves typically form in rocks that are soluble in water, such as limestone and gypsum. These rocks can be dissolved by carbonic acid in rainwater, creating cavities over time. So, caves are more likely to form in rocks that are easily eroded by water.
How does erosion contribute to the formation of caves?
By removing the rock. Most caves are in limestone and the mechanism is chemical weathering by slightly-acidic ground-water flowing through, initially, the joints and other fractures in the rock mass, later the walls and floors of the passages, anddissolving the limestoneas it does so.
How can a sedimentary rock form a new sedimentary rock?
If the original rock is eroded or broken away and then returned to sedimentary-forming conditions, it will form another sedimentary.
What are two things that can happen to eroded rock?
Eroded rock can either be transported by water or wind to new locations, where it may settle and form new sedimentary rock layers. Alternatively, eroded rock can be broken down further into smaller particles and eventually become part of the soil composition.
What environmental process forms the dry caves?
The only caves that can form dry are; Rock-shelters eroded out by wind-blown sand. Talus Caves: voids between landslipped boulders and their parentrock-face. Mass-movement fissures: formed by a type of landslip. Lava Tubes - rather stretching the point because they result from molten lava flowing out from beneath a solidified crust. Caves formed in limestone - as most caves are - arekarst features, i.e. result from dissolution of the rock by weakly-acidic ground-water. Although such caves can subsequently lose their formative streams and so become dry, they were not formed dry and do not develop any further.
Why are there so many caves in limestone rock?
Limestone is a type of rock that is easily eroded by water, which can create caves over time. Water dissolves the limestone rock to form caves through a process known as chemical weathering. Additionally, limestone can also be carved out by underground rivers or other natural forces, resulting in the formation of caves.
Why do caves form in only certain types of rocks?
Caves typically form in rocks that are soluble in water, such as limestone and gypsum. These rocks can be dissolved by carbonic acid in rainwater, creating cavities over time. So, caves are more likely to form in rocks that are easily eroded by water.
When rain soaks away rock below the ground to form caves what has occurred?
mechanical weathering +++ I'd class it as chemical weathering because the action is dissolution by weakly-acid, and it works only in limestone, gypsum and dolomite - although dolomite deposits are not normally structurally disposed to cave development.
Why are sedimantary rocks formed?
eroded rock (from igneous, metamorphic, or sedimentary) settled. they compact together to form a rock. the rock that they form is known as sedimentary rock
What is the name of rocks without form?
Eroded rock without form could be the sand produced.
How does erosion contribute to the formation of caves?
By removing the rock. Most caves are in limestone and the mechanism is chemical weathering by slightly-acidic ground-water flowing through, initially, the joints and other fractures in the rock mass, later the walls and floors of the passages, anddissolving the limestoneas it does so.
How can a sedimentary rock form a new sedimentary rock?
If the original rock is eroded or broken away and then returned to sedimentary-forming conditions, it will form another sedimentary.
What are two things that can happen to eroded rock?
Eroded rock can either be transported by water or wind to new locations, where it may settle and form new sedimentary rock layers. Alternatively, eroded rock can be broken down further into smaller particles and eventually become part of the soil composition.
How did ship rock form?
Ship Rock is a volcanic rock formation that formed around 27 million years ago from the remains of a volcano that eroded over time. The rock is a volcanic neck or "volcanic plug" that remains after the surrounding rock has eroded away, leaving a distinct and prominent formation.
What materials make up most caves?
Air! :-) A cave is a natural void in rock, and the rock in which thevast majority of the world's caves form is limestone.
What pre-existing rock does siltstone form from?
Siltstone can be formed from the eroded and transported particles of any rock type.
Why do caves only form a certain type of rock?
Caves are formed by rainwater dissolving away limestone or sandstone.
