It is known - they are calcite deposits precipitated from soultion in ground-water that dissolved it from the limestone above the cave.
The real puzzle is the development of "helictites" - stalactites chemically and in principle, but growing into fantastic shapes like spaghetti, and no one theory fits them all!
A helictite is a speleothem found in lime stone caves that changes its axis from the vertical at one or more stages during its growth. They have a curving or angular form that looks as if they were grown in zero gravity. They are most likely the result ofcapillary forces acting on tiny water droplets, a force often strong enough at this scale to defy gravity.A Stalactite is cylindrical or conical mineral deposit projecting downward from the roof of a cave or cavern, formed by the dripping of water saturated with minerals. As this is formed with support of gravity, it grows vertically downwards. Stalactites form gradually as the minerals precipitate out of the saturated water. They usually consist of calcite but can also consist of other minerals.
Hydrogen, helium, carbon, nitrogen, and oxygen are the most common elements likely to be formed in the Sun at some point in its life. These elements are produced through nuclear fusion reactions in the Sun's core.
The gas planets are much more massive than the terrestrial planets and therefore have stronger gravity. It is believed that as they formed many of their moons formed around them much like the planets formed around the sun. Other moons are likely captured asteroids and comets.
3.8 to 2.5 billion years ago
The Orion Nebula was not formed from a single supernova or nova event. It is a stellar nursery where new stars are currently being formed. The nebula is created by the glowing gas and dust illuminated by newly formed stars within it.
Within caves in carbonate rocks.
A limestone deposit rising from the floor in a cave is most likely a formation called a stalagmite. Stalagmites are formed when mineral-rich water drips from the ceiling of a cave, depositing calcite and building up over time. Over thousands of years, stalagmites can grow tall and take on various shapes.
In a cave, you may taste dampness from the moisture in the air, mineral-rich earth, and possibly a hint of any natural formations like stalactites or stalagmites. The taste would likely be earthy and slightly musty.
limestone
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The limestone caverns themselves are formed by groundwater gradually dissolving the limestone rock. In this process, some of the limestone is taken into solution, and under favourable conditions, it will form a drip on the roof of a cavern. This may eventually build to form a stalactite above, and perhaps also a stalagmite below it.
The limestone caverns themselves are formed by groundwater gradually dissolving the limestone rock. In this process, some of the limestone is taken into solution, and under favourable conditions, it will form a drip on the roof of a cavern. This may eventually build to form a stalactite above, and perhaps also a stalagmite below it.
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Canyons are one of the surface features of the Earth most likely formed by the process of erosion. Over time, the gradual wearing away of rock by the forces of wind and water can create deep, narrow valleys with steep sides.
A U-shaped valley is most likely formed by the process of deposition from glaciers. Glaciers carve out valleys as they flow, leaving behind sediment and debris when they melt. This material can accumulate at the base of the glacier, creating a U-shaped valley.
The rough buildup on your pool walls are most likely calcium carbonate. Similar to stalactites and stalagmites in caves build in or on pool surfaces because there is a lack of chemical balance in the water. Your pH is running constantly at or above 8.0 pH. The only way to remove them now is to drain and acid wash and/or sand the pool surface. You are likely, too, to not be able to remove them completely but you will be able to control them with vigilant monitoring of your water chemistry. k
Mitochondria likely formed through endosymbiosis with an aerobic bacterium, while plastids likely formed through endosymbiosis with a photosynthetic cyanobacterium. Both organelles have their own DNA and replicate independently within eukaryotic cells.