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Volcanic Eruptions
| Question | Answer |
|---|---|
| molten material beneath or within the earth's crust, from which igneous rock is formed.molten material beneath or within the earth's crust, from which igneous rock is formed. | magma |
| the molten, fluid rock that issues from a volcano or volcanic vent. | lava |
| the property of a fluid that resists the force tending to cause the fluid to flow. | viscosity |
| the dioxide form of silicon, SiO 2 , occurring especially as quartz sand, flint, and agate: used usually in the form of its prepared white powder chiefly in the manufacture of glass, water glass, ceramics, and abrasives. | silica |
| basaltic lava having a smooth or billowy surface. | pahoehoe |
| basaltic lava having a rough surface. | AA |
| ash | volcanic ash |
| a partially or mostly burned piece of coal, wood, | cinders |
| Also called volcan·ic bomb·. Geology . a rough spherical or ellipsoidal mass of lava, ejected from a volcano and hardened while falling. | bombs |
| n opening at the earth's surface from which volcanic material, as lava, steam, or gas, is emitted. | vent |
| a mountain or hill, usually having a cuplike crater at the summit, formed around such a vent from the ash and lava expelled through it. | volcano |
| the cup-shaped depression or cavity on the surface of the earth or other heavenly body marking the orifice of a volcano. | crater |
| a fast-moving current of hot gas and rock (collectively known as tephra), which reaches speeds moving away from a volcano of up to 700 km/h (450 mph). | Pyroclastic flow |
| a spring that is produced by the emergence of geothermally heated groundwater from the Earth's crust. | hot strings |
| a component or constituent of a whole or one of the parts into which a whole may be resolved by analysis: Bricks and mortar are elements of every masonry wall. | element |
| a steep conical hill of tephra (volcanic debris) that accumulates around and downwind from a volcanic vent. | cindercone volcano |
| a tall, conical volcano built up by many layers (strata) of hardened lava, tephra, pumice, and volcanic ash. | composite volcano |
| a broad volcano built up from the repeated nonexplosive eruption of basalt to form a low dome or shield, usually having a large caldera at the summit | sheild volcano |
| an embankment for controlling or holding back the waters of the sea or a river: They built a temporary dike of sandbags to keep the river from flooding the town. | dike |
| A large mass of igneous rock that has melted and intruded surrounding strata at great depths. | batholith |
| a tabular body of intrusive igneous rock, ordinarily between beds of sedimentary rocks or layers of volcanic ejecta. | sill |
| 1. Geometry . a surface or solid bounded by two parallel planes and generated by a straight line moving parallel to the given planes and tracing a curve bounded by the planes and lying in a plane perpendicular or oblique to the given planes. | Pipe |
| a reservoir of magma in the earth's crust where the magma may reside temporarily on its way from the upper mantle to the earth's surface | magma chamber |
| clarmant | |
| can errupt | active |
| will not errupt | extinct |
| a hot spring that intermittently sends up fountainlike jets of water and steam into the air. | geyser |
| A large crater formed by volcanic explosion or by collapse of a volcanic cone. | caldera |
| a vent in the earth's crust through which lava, steam, ashes, etc., are expelled, either continuously or at irregular intervals. | volcanoes |
| a plateau produced by volcanic activity. There are two main types: lava plateaus and pyroclastic plateaus. | lava plateau |
| is an area where a large number of earthquakes and volcanic eruptions occur in the basin of the Pacific Ocean. | ring of fire |
Created by:
mmoser
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