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volcanoes 2
Question | Answer |
---|---|
What are the 3 categories of volcanoes ? | Extinct active and dormat |
Whats a fissure? | A narrow crack in the Earths crust |
Whats an example of Active volcano? | Mount Vesuvius Italy |
Whats an example of Dormat volcano? | Yellowstone National Park |
Whats an example of Extinct volcano? | Slemish co. Antrim |
What kind of lava comes out of Destructive volcanoes? | Acidic |
Whats an example of a volcano with acidic lava flow? | Mount pinatubo |
Whats an example of a volcano with basic lava flow? | Mauna Loa |
What volcano emits pyroclastic flow? | Volcanoes at Destructive plate boundary |
What is pyroclastic flow made of? | Rock fragments, lave and ash |
what is tephra? | collective name given to ash, dust and pumice |
what gases come from eruptions? | crabon dioxide, chlorine and sulphur dioxide |
what happens in volcanoes at constuctive boundaries? | Plates separate, magma rises through fissures gases escape and produces basic lava |
what are hotspots? | Occur away from plate boundaries of continental and oceanic crust, hot plumes of magma. gases escape so they are not violent. |
what are the 3 landforms of volcanoes? | cones, cinder and shield |