A bowl-shaped pit at the summit of most volcanoes, around the central vent.
central summit depression associated with the principle vent of a volcano
formed from the collision of a large natural body from space when it impacts a large body's (eg. planets, moons, asteroids) surface at high velocity.
An abrupt circular depression formed by extrusion of volcanic material, by collapse, or by the impact of a meteorite.
bowl-shaped hole on a surface made by a volcanic explosion or the impact of a body such as a meteoroid.
circular feature blasted out by impact from space rock or comet.
A circular depression in a volcano that formed from a gradual accumulation of pyroclastic material around the vent, an explosive eruption, or collapse.
a bowl-shaped depression on a surface made by the impact of a large object, such as a meteor
A bowl-like shaped cavity or pit created by an asteroid or meteorite colliding with the Earth.
Bowl-shaped depression formed by the impact of a meteoroid; depression around the orifice of a volcano.
A circular or oval depression at the summit of a volcano resulting from the extrusion of gases, pyroclastic materials, and lava; connected by a conduit to a magma chamber below Earth's surface.
a pit at the top of a volcano whose diameter is less than three times its depth volcanic eruption: the time when a volcano spurts forth lava, ash, and rock.
the upper part of a volcano usually containing tuffaceous sediments and which is usually roughly circular in shape
A typically bowl-shaped or saucer-shaped pit or depression, generally of considerable size and with steep inner slopes, formed on a surface or in the ground by the explosive release of chemical or kinetic energy; e.g., an impact crater or an explosion crater.
A naturally occurring hole. On Earth, a very few craters are formed by meteorites striking the Earth; most are caused by volcanoes. On the Moon, most craters were caused by meteorites. Some lunar craters were apparently formed by volcanic processes. In the formation of lunar craters, large blocks of rock (perhaps as large as several hundred meters across) are thrown great distances from the crater. These large blocks in turn from craters also-such craters are termed secondary craters.
A circular depression containing a volcanic vent.
a bowl-shaped depression or pit in the earth caused by an object's impact with the surface (meteor, bomb, volcanic debris, etc).
a bowl-shaped opening at the top of a volcano
a bowl-shaped depression formed by the impact of a meteorite or bomb
a bowl-shaped or flat-bottomed depression on the surface of the planet or minor object
a circular depression created by the impact of some body, be it an asteroid or comet
a hole created when a meteorite or asteroid hits a Moon or a planet
a hollow area, or pit, in the ground
a large depression found at the summit of a volcano
a large hole or depression.
A bowl-shaped, steep-sided, hollow in the summit of a volcano which lies above the vent from which volcanic material is expelled.
circular depression on a planet, moon, or asteroid caused by being hit by another object.
A bowl-like depression. On planetary surfaces, both volcanic craters and impact craters may exist, but because each type of crater has its own characteristics, scientists can determine whether a crater was produced by an impact or by volcanism.
the bowl-shaped area around the opening at the top of a volcano.
A bowl shaped cavity, in particular, at the summit or on the side of a volcano. And from which smoke and steam may emanate if the volcano is active. Craters of extinct volcanoes may contain crater lakes. The word crater is applied to other depressions especially those caused by the fall of large meteorites onto the earth's surface. Volcanic craters are sometimes called calders.
The impression left in a surface of solid planets or moons by the impact of meteorite, asteroid or comet
The small circular impressions that are formed by each individual spark as material is removed that creates the random EDM'd surface on the workpiece.
A small funnel-shaped depression in the summit of a volcano at the top of the conduit or pipe through which the magma reaches the surface. of document
A basin resulting from the collision of an object with a planetary surface.
To imitate a meteorite by falling a great distance and hitting the ground. Usually one hits hard enough to excavate a significant hole in the earth and throw enough dust into the atmosphere to blot out the sun, and perhaps cause a mass extinction. Not recommended.
bowl shaped depressions formed primarily as a result of the impact of meteors
A steep-sided, usually circular depression formed by either explosion or collapse at a volcanic vent.
A hole that was created in the earth or celestial body from the impact of a meteor.
A depression in a moon or planet's surface, usually caused by something crashing into it at speed.
a large hole in the ground, shaped like a bowl, that is mainly created by meteors.
The depression produced by a meteorite impact or at the summit of a volcano.
(impact crater). A generally round depression created by the impact of a large compact mass on a planet or moon. Impact craters mark the Moon, also Mercury and Mars, and many satellites in the solar system. Notable ones on Earth include Meteor Crater in Arizona and Manicougan lake in Canada.
A round impression left in a planet or satellite from a meteoroid.
a depression in the center of a volcanic cone caused by the "backing down" of lava in the throat of a volcano at the end of an eruption.
A bowl-shaped depression on a planet or moon created from above by the impact of an extraterrestrial body or from below by a volcanic eruption.
A hole or depression. Most are circular or oval in shape. On the Moon most are made by the impacts of meterorites.
A bowl-shaped depression formed by the impact of an asteroid or meteoroid. Also the depression around the opening of a volcano.
The circular depression containing a volcanic vent.
An approximately circular depression, sometimes surrounded by a raised rim. craters are typically formed by explosion during meteorite impact
A circular depression caused by an explosion or the collapse of a volcanic vent.
a dent in a planet's surface made by a meteorite falling on it.
A basin-like rimmed structure, usually at the summit of a cone; its floor is approximately the diameter of the vent. See also caldera.
funnel shaped opening at top of volcano
Impact craters are the remains of collisions between an asteroid, or meteorite and a planet, planetoid, or moon.
circular-shaped depression at the summit of a volcanic cone or one on the surface of the land caused by the impact of a meteorite; a manmade depression caused by an explosion (caldera, lua).
A (usually) circular depression in a surface caused by an impact.
1) A depression formed by the impact of a meteorite. 2) A depression around the orifice of a volcano.
A bowl-shaped depression around the orifice of a volcano or produced by the impact of a meteorite or an explosion.
Circular depression in the ground surface created by volcanic activity or asteroid impact.
A bowl-shaped depression on the surface of a planet or moon, generally caused by meteorite impact, although sometimes by volcanic upwellings.
A crater is a circular depression in the ground. It has steep sides and contains a volcanic vent.
