Earth Science (Chapter 10)
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Created by:
jackconcannon15 on March 31, 2012
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17 terms
Terms | Definitions |
|---|---|
 Origin of Magma | heat, pressure and water content |
| Divergent Boundary Volcanism | two of earths plates move apart |
| Convergent Boundary Volcanism | two plates are moving into each other |
| Intraplate Volcanism | volcanoes that form far from plate boundaries |
| Viscosity | a liquids resistance to flow |
| Dissolved Gases | propelled through a vent, composed of mostly water vapor and carbon dioxide |
| Shield volcano | a wide, gently sloped volcano |
| Composite cone volcano | a volcano composed of lava flow and pyroclastic material |
| Cinder Cone volcano | a volcano made of loose particles |
| Claderas | a crater in the top of a dormant volcanoe |
| Volcanic necks | crystallized magma that hardened inside the volcano and is revealed after erosion |
| Lava Plateus | from nonviolent lava flow over a long period of time plateaus form |
| Volcanic Hazards | lava flows, volcanic ash, pyroclastic flows, mudflows |
| Sills | a slab of volcanic rock formed when magma squeezes between layers of rock |
| Laccoliths | igneous intrusion that has been injected between two layers of sedimentary rock |
| Dikes | a slab of volcanic rock formed when magma forces itself across rock layers |
| Batholiths | largest intrusive igneous rock body that forms when magma being forced upward toward Earth's crust cools slowly and solidifies underground |
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