I would call it a cave in.
They are formed by the deposit of minerals. They are left behind by evaporation.
A large hole formed when a roof of a cave collapses.
When the roof of a cave wears away and the ground sinks in, it forms a sinkhole. Sinkholes are depressions or holes in the ground that are typically caused by the collapse of surface material into underground caves or voids.
Snow is heavy and as it piles up on a flat roof it gets heavier. Too much snow on a roof and it will cave in.
A stalactite is a stony spike that hangs from the roof of caves. It forms as mineral-rich water drips from the cave ceiling and leaves behind deposits that gradually build up over time. Stalactites are commonly found in limestone caves and can vary in size and shape.
If they're in a cave,hanging from the roof, they are stalagtites. A stalagtite holds tight to the roof, and a stalagmite grows from the ground up and might someday touch the roof.
Stalactites are found hanging from the roof of a cave, as opposed to stalagmites, which grow up from the floor. Remembering the difference is easy - stalactites are "tite" to the ceiling!
Those stony conical projections are called stalactites. They form as mineral deposits from water dripping through the cave's ceiling and gradually hardening over time.
A deposit on the roof of a cave is typically referred to as a stalactite, which is a mineral formation hanging from the ceiling that is formed by the dripping of mineral-rich water. Stalactites are a common feature in caves and can vary in size and shape depending on the minerals present in the water dripping from the cave ceiling.
The roof of a cave is referred to as the "ceiling" or "overhang".
The ceiling of a cave is often referred to as the "roof" or "cave roof."
stalactites are a deposit, usually of calcium carbonate, shaped like an icicle,hanging from the roof of a cave or the like, and formed by thedripping of percolating calcareous water.
A sinkhole is formed when the roof of a cave collapses.
It depends on where the cave was...
icicle
Stalactites are the icicle-shaped features that form on cave ceilings. They are composed of mineral deposits that accumulate as water drips from the cave ceiling and evaporates, leaving behind a small amount of mineral material.