what is a crack in the earth surface called?

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answers:
Atarah Derek say: A crack. If it's moving, it's called a fault. If it's on the edge of a tectonic plate, it's called a plate boundary. If it's spewing molten rock, it's called a volcano. If it's of notable size on the surface and is otherwise not doing anything, it's probably a gorge.
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YKhan say: A chasm?
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Gray Bold say: A crevasse is a deep crack, or fracture, found in an ice sheet or glacier, as opposed to a crevice that forms in rock.
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jhon say: Tictonic Plates ? Valley could be anything
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MARK say: Geologists call it a fracture.
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say: A fissure.
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say: A fault line?
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CarolOklaNola say: A fault
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say: Dried up mud
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