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volcanoes
| Question | Answer |
|---|---|
| an open eruption in the earth's surface through wich lava, hot gases, and rock fragments erupt; a vent | volcanoes |
| the reservoir located under the volcano where magma collects and becomes the supply of magma/lava to build the volcano | magma chambers |
| the above ground structure built from lava | cone |
| the path that the magma takes from the magma chamber to the vent | conduit |
| molten, liquid rock on the surface of the earth | lava |
| a smaller secondary volcano built on the side of or near the main volcano, but sharing the same conduit to the magma chamber | parasitic cone |
| a secondary vent that emits only gases | fumarole |
| a long crack in wich lava flows | fissure |
| the opening of the volcano, through which lava, ash, and gases flow | vent |
| a type of lava that often has a ropy or wrinkled appearance (an old person) | pahoehoe lava |
| a type of lava that hardens with a rough, jagged, sharp edge surface (looks like thrown up broccoli) | aa lava |
| a type of lava that shows sack-like segments (stuffed pillows) (looks like the skin of a seal) | pillow lava |
| where do volcanes occur? | divergent boundaries <> convergent boundaries >< hot spots |
| what are the three types of volcano mountains? | cinder cones shield composite |
| the type of volcano that can become active and erupt again after a "wake-up" period | dormant (sleeping) |
| the type of volcano that is not expected to ever erupt again | extinct |