“volcanic explosion”簡單造句，volcanic explosion造句子

In a region bursting with people, a few big open Spaces remain-like the Rift floor in Queen Elizabeth Park, pocked with crater lakes formed by volcanic explosions.

The researchers examined Martian meteorites here on Earth to determine that the sulfur and chlorine likely resulted from ancient volcanic explosions.

Kurile Lake was formed 8300-8400 years ago by a large volcanic explosion and a collapse of the Earth crust.

A large crater formed by volcanic explosion or by collapse of a volcanic cone.