Earth Structure IS Chapter 5.2 Spanish
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Created by:
jholycross on November 4, 2011
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9 terms
Terms | Definitions |
|---|---|
 magma chamber | The pocket beneath a volcano where magma collects. |
| pipe | A long tube through which magma moves from the magma chamber to Earth's surface. |
| vent | The opening through which molten rock and gas leave a volcano. |
| lava flow | The area covered by lava as it pours out of a volcano's vent. |
| crater | A bowl-shaped area that forms around a volcano's central opening. |
| silica | A material found in magma that is formed from the elements oxygen and silicon; it is the primary substance of Earth's crust and mantle. |
| pyroclastic flow | The flow of ash, cinders, bombs and gases down the side of a volcano during an explosive eruption. |
| dormant | Not currently active but able to become active in the future. |
| extinct | Term used to descibe a volcano that is no longer active and unlikely to erupt again. |
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