A crevice
A crevice is a narrow opening or fissure similar to a crack or cranny. A chasm is a deep fissure similar to a gap or abyss. Generally a crevice is a small narrow passage well a chasm is a noticeably larger hole.
A gap in the geological record in a body of rock is called an unconformity.
pieces of rock that have been broken down by water getting into a crack and freezing up, this will create a bigger gap and break it up to the smallest size possible.
When water freezes, it expands. This can cause rocks to crack or break, then the water thaws to create a visible gap in the rock. This is ice wedging.
A crevice, possibly? That's the only term I know
crack
Crevice is a noun that refers to a narrow opening or crack, especially in a rock or wall. It can also be used to describe a small, narrow gap or split in an object.
slit, crack, aperture, hole, gap
The narrow gap between the Hindu Kush is the Bosporus Strait
It depends how far the crack goes. But your choices are only rock and a rush of molten lava flowing up to fill the gap.
A crevice is a narrow opening or fissure similar to a crack or cranny. A chasm is a deep fissure similar to a gap or abyss. Generally a crevice is a small narrow passage well a chasm is a noticeably larger hole.
A narrow gap in a mountain range is called a pass or a mountain pass.
Incorrect. A crevice is a narrow opening or crack in a structure, such as a wall, whereas a keyhole is a small hole designed for inserting a key.
R. Dornhaus has written: 'Narrow-gap semiconductors' -- subject(s): Narrow gap semiconductors
gap, crack OR clink, tinkle
Pass
The Cumberland Gap is a narrow pass in the Cumberland Mountains, which is in the Appalachian Mountains of the the USA.