Stalactites and stalagmites, How do they form?

The subject says it all... How do stalactites and stalgmites form?

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  • Anonymous
    1 decade ago
    Favorite Answer

    There is a great deal of erosion that occurs underground. Water that flows underground, called groundwater can erode rock, the result is a cavern. Caverns are often damp places. Many contain streams or lakes. Most have groundwater seeping into them from the ceiling. This water drips down to the floor of the cave. Often as the drip forms on the ceiling a small amount of sediment (usually calcium carbonate) is deposited on the ceiling When the drop hits the floor, a bit of sediment might be deposited as well. Eventually those deposits build up, sometimes building beautiful structures in the cave. When the deposits start on the ceiling and from and icicle-like structure hanging down the structure is a stalactite, when the deposits form a structure that rises from the ground, the structure is a stalagmite.

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  • Anonymous
    4 years ago

    How Are Stalagmites Formed

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  • Anonymous
    1 decade ago

    The underground water currents is the main cause of caves. The s&s are also due to underground water. If the water oozing through the roof of a cave drop by drop dries before falling to the floor you’ll witness the growth of a stalactite from the roof. If water drop falls and dries on the floor a stalagmite would be formed. The salts of Ca & Mg always present in the water crystallize into those majestic sparkling statues.

    Source(s): Read the book “King Solomon’s Mines” before it’s too late for your age.
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  • 1 decade ago

    They form from the effects of a vibrant source of water running underground coming into play with constantly changing mineral deposits. They make or find hollow spaces in the earth which are still hydro active and move by them slowly trapping and forming these beautiful works of natural art.

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  • 7 years ago

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  • 1 decade ago

    They are calcium carbonate deposits from the water that leaked through the roof.

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