a roof
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.
stalactite
Cave entrances are typically called cave mouths, cave openings, or cave portals.
Stalactites are the formations that grow downwards from the roof or top of a cave due to mineral-laden water dripping through the cave's ceiling.
The top of a cave is called the entrance or the mouth of the cave. It is the opening through which one can access the interior of the cave.
This is called a "Stalactite"
The ceiling of a cave is often referred to as the "roof" or "cave roof."
That's called a stalagmite. A similar object descending from the roof of a cave = is a stalactite.
A calcite stalactite.
A sinkhole is formed when the roof of a cave collapses.
It depends on where the cave was...
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.
Stalactite
Stalactites
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!
I would call it a cave in.
stalagtite