A large crater formed by volcanic explosion or by collapse of a volcanic cone.
A large crater formed by volcanic explosion or by collapse of a volcanic cone.
火山口火山爆发而形成的环形山或大山核心部分的崩塌而形成的环形山
A large crater formed by volcanic explosion or by collapse of a volcanic cone.
火山口火山爆发而形成的环形山或大山核心部分的崩塌而形成的环形山