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6
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Material that is thrown out of the volcano including tephra and lava bombs
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7
|
Solid, outlayers of the earth, including the rock of the continents
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8
|
Hot liquid under the Earth's surface.
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9
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Volcanos related to a persistant heat source in the mantle
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10
|
Volcanic cone made up of loose fragments.
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11
|
A big bowl shape that rock left when it hit.
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12
|
The opening in which volcanic material is emitted
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13
|
A flow of hot, poisonous rock with rapid speeds.
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14
|
Type of plate that is less dense that the other.
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16
|
Place where 90% of all volcanos are active.
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18
|
A surface or fracture in a rock
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1
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The point directly above the focus.
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2
|
A volcanic center, 60-120 miles across and persistant for at least a few tens of millions of years
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3
|
The manner of breaking due to intense folding or faulting
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4
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Type of plate that is more dense than the other.
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5
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Volcanic rock, dark color, contains 45%-54% of silica.
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6
|
A shaking of the ground.
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7
|
Steep volcanic cone built by lava and pyroclastic flow
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15
|
A part of the Earth's crust that has attained stability and has been little deformed
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17
|
A crack or fracture in the Earths surface
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