Volcano Vocab Crossword

A volcano that is erupting or has erupted within historical time and is considered likely to do so in the future.
Fine particles of rock dust blown from an explosion vent.
An opening at the Earth's surface of a volcanic conduit.
A steep volcanic cone built by both lava flows and pyroclastic eruptions.
A volcano that consists of a complex of two or more vents, or a volcano that has an associated volcanic dome, either in its crater or on its flanks. Examples are Vesuvius and Mont Pelee.
A passage (pipe) followed by magma in a volcano
A steep-sided, usually circular depression formed by either explosion or collapse at a volcanic vent
A volcano which is presently inactive but which may erupt again.
The process by which solid, liquid, and gaseous materials are ejected into the earth's atmosphere and onto the earth's surface by volcanic activity
A crack or fracture in the earth's surface.
A volcanic center, 60 to 120 miles across and persistent for at least a few tens of million of years, that is thought to be the surface expression of a persistent rising plume of hot mantle material
Magma which has reached the surface through a volcanic eruption. Streams of liquid rock that flow from a crater or fissure.
Elongated fractures or cracks on the slopes of a volcano.
Molten rock beneath the surface of the earth.
The subterranean cavity containing the gas-rich liquid magma which feeds a volcano
The zone of the earth below the crust and above the core.
The regions of mountain-building earthquakes and volcanoes which surround the Pacific Ocean.
Any of various crystalline or glassy rocks formed by the cooling and solidification of molten earth material.
Igneous rock type in which slow cooling promotes the growth of minerals (crystals) large enough to be identified visually without the aid of a microscope
Igneous rock type which is composed of minerals (crystals) that can be seen only with the aid of a microscope
Igneous rock type which contains no minerals (crystals) at all