A crater is a landform consisting of a hole or depression on a planetary surface, usually caused either by an object hitting the surface, or by geological activity on the planet. A crater has classically been described as: "a bowl-shaped pit that is formed by a volcano, an explosion, or a meteorite impact".

2024年4月17日 · A crater is a bowl-shaped depression, or hollowed-out area, produced by the impact of a meteorite, volcanic activity, or an explosion. Impact Craters Craters produced by the collision of a meteorite with Earth (or another planet or moon ) are called impact craters.

A volcanic crater is an approximately circular depression in the ground caused by volcanic activity. [1] It is typically a bowl-shaped feature containing one or more vents. During volcanic eruptions , molten magma and volcanic gases rise from an underground magma chamber , through a conduit, until they reach the crater's vent, from where the ...

2025年1月28日 · crater, circular depression in the surface of a planetary body. Most craters are the result of impacts of meteorites or of volcanic explosions.

A volcanic crater is a bowl- or funnel-shaped depression that usually lies directly above the vent from which volcanic material is ejected. Craters are commonly found at the summit of volcanic edifices, but they may form above satellite (flank) vents of composite and shield volcanoes.

What is a volcanic crater? A volcanic crater is a geological feature formed at the summit of a volcano during explosive eruptions or collapse events. It is typically a circular depression in the Earth’s surface, varying in size and depth depending on the volcanic activity.

The meaning of CRATER is the bowl-shaped depression around the orifice of a volcano. How to use crater in a sentence.