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Volcano

A vent or opening in a planet's surface that lets out pressurized molten rocks or magma, and gases from the inner core. Volcanoes come in various shapes and structure, but the most common ones are mountain-like structures with a crater at the summit.

Contributors in Volcano

Volcano

Landsat

Natural environment; Volcano

A series of unmanned satellites orbiting at about 706 km (438 miles) above the surface of the earth. The satellites carry cameras similar to video cameras and take images or pictures showing ...

Lava

Natural environment; Volcano

Magma which has reached the surface through a volcanic eruption. The term is most commonly applied to streams of liquid rock that flow from a crater or fissure. It also refers to cooled and ...

Lapilli

Natural environment; Volcano

Literally, "little stones. " Round to angular rock fragments, measuring 1/10 inch to 2 1/2 inches in diameter, which may be ejected in either a solid or molten state.

Lava flow

Natural environment; Volcano

An outpouring of lava onto the land surface from a vent or fissure. Also, a solidified tongue like or sheet-like body formed by outpouring lava.

Lava lake

Natural environment; Volcano

A lake of molten lava, usually basaltic, contained in a vent, crater, or broad depression of a shield volcano.

Lahar

Natural environment; Volcano

A torrential flow of water-saturated volcanic debris down the slope of a volcano in response to gravity. A type of mudflow.

Laccolith

Natural environment; Volcano

A body of igneous rocks with a flat bottom and domed top. It is parallel to the layers above and below it.

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