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How long is a cave?
The rates of cave development and surface lowering are very variable, depending on the limestone's own nature, the geology and hydrology of its setting, and the climate including any glacial phases.
As a rough guide a fair rate of rock-surface removal by a stream in a cave in Carboniferous Limestone in temperate latitudes, is a few millimetres / 1000 years.
A discrete cave passage can develop only while "active" (carrying its formative stream).
A humanly-enterable passage that is still active may be tens of thousands of years old as we can see it now; but its inception phase* as micro-conduits in the limestone's joints and other discontinuities carrying extremely slow flows of percolating ground-water, may well last hundreds of thousands of years.
Surface erosion of limestone uplands is different, as it depends on factors differing from those underground, but again, think of N X 105 or 6 years.
*Inception - a very recent hypothesis that gained Dr. David Lowe, a British caver and professional geologist, his PhD. Although still a 'hypothesis' his idea has attracted a lot of peer-interest and approval.
What else can I help you with?
What type of weather is needed to form caves?
Caves are typically formed through a process called chemical weathering, where water and carbon dioxide form a weak carbonic acid that dissolves limestone. This process occurs over a long period of time in moist and humid conditions. However, caves can also form in other types of rock due to variations in weathering processes.
How can groundwater cause caves to form?
Groundwater can dissolve minerals in the rock over time, creating underground cavities as the water flows through the rock. The dissolved minerals are carried away by the water, leaving void spaces that eventually form into caves. Over long periods of time, erosion and deposition can also help shape these formations into the caves we see today.
How rocks change form is known as the what?
The process through which rocks change form is known as the rock cycle. It involves the transformation of rocks from one type to another over long periods of time through processes such as weathering, erosion, and metamorphism.
How are caverns formed?
Caverns are formed when rain, run-off, or surface water mixes with the topsoil, then Carbon acid and Carbon Dioxide mix with the soil where plants grow, making an acid so powerful that it eats away at the limestone that is underground; making cracks. Over millions of years, this process makes caves, which also concludes that caves are made up of lots of other caves.
How do fissures form?
Fissures form when rocks are under stress and begin to crack or fracture, often due to tectonic activity, volcanic activity, or changes in temperature and pressure. These cracks can develop into long, narrow openings in the Earth's surface, allowing magma or fluids to move towards the surface.
Do tectonic plates make caves?
Caves are formed in many ways but mostly by chemical weathering of the surface rock. Tectonic plates on the other hand are huge slabs of rock that form the Earth's crust. Caves are not formed by tectonic plates, think of caves as tiny boreholes in the very surface of a tectonic plate. I agree
How long does it take for a land form to change?
it depends on the amount of rain received in the area because of soil erosion but it has known to be up to 100,000 years in the limestone caves in Naracoorte
How do you change burmy's form?
It changes its cloak after a fight in a certain area. If you fight with it outside, or in long grass, then it takes on the Plant Cloak form. Beaches and caves will give Sandy Cloak, inside buildings will give Trash Cloak.
Where do caves usually form?
Caves usually form in areas with limestone or other soluble rocks that can be dissolved by water over long periods of time. Common locations for cave formation include regions with karst topography, such as in limestone landscapes or near volcanic activity, where lava tubes can create caves.
What type of weather is needed to form caves?
Caves are typically formed through a process called chemical weathering, where water and carbon dioxide form a weak carbonic acid that dissolves limestone. This process occurs over a long period of time in moist and humid conditions. However, caves can also form in other types of rock due to variations in weathering processes.
Why are limestone caves so common?
Because limestone uplands with appropriate internal geology and surface drainage in areas of long-term, suitable climatic conditions are so widespread. Not all limestone areas support caves though.
How long does it take for a lava cave to form?
That's extremely variable and specific to each cave, but you have to think in tens or hundreds of thousands of years.
How can groundwater cause caves to form?
Groundwater can dissolve minerals in the rock over time, creating underground cavities as the water flows through the rock. The dissolved minerals are carried away by the water, leaving void spaces that eventually form into caves. Over long periods of time, erosion and deposition can also help shape these formations into the caves we see today.
What are icicles?
Icicles are long, thin, and pointed pieces of ice that form when dripping water freezes as it flows down a surface, such as the edges of a roof or tree branches. They are commonly seen during winter and can vary in size and shape depending on the conditions in which they form.
How long does it take an earthquake to change Earth's surface?
Billions of years
How long does it take for sea caves to form?
Sea caves can take thousands to millions of years to form, depending on factors like the type of rock, wave action, and local geology. The process involves erosion from waves carrying abrasive materials that gradually wear away the rock to create a cave-like structure.
Which type of lava would most likely form lava tube caves?
Pahoehoe lava, which has a smooth, rope-like texture and forms by flowing rapidly and cooling quickly, is more likely to form lava tube caves due to its ability to retain heat and flow for long distances before solidifying. Aa lava, with its jagged and blocky texture, tends to move more sluggishly and is less likely to create extensive tube structures.
