Hawaii Case Study- Hotspots
- Created by: Amber clarke
- Created on: 14-06-15 14:39
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- Hawaii Case Study- Hotspots
- Volcanoes over a Hotspot
- Active
- Erupts frequently
- Grows in height
- Ropy and blocky lava on the surface
- Large volumes of runny lave creating a wide and broad shaped mountain
- Volcanoes moving away from a Hotspot
- Regular source is less thus it only spits out bubbles of lave onto a small area
- steep sided cones may erupt pyroclastic flows
- Becomes smaller due to erosion
- Violent eruptions
- Splatter and ash cones
- Background
- They placed seisometers on land and sea around Hawaii
- There was evidence of a volcano forming on the sea bed 200,000 years before it will appear above sea level
- The Island chain was not in a straight line and curves in direction overall due to plate movement
- In the south of Hawaii volcanoes where active as they where fed by the Hotspot
- Yet in the north the volcanoes where extinct and disappearing slowly due to erosion
- December 2009- Scientists stated how volcanoes where formed in the middle of tectonic plates
- The equipment then picked up movement of magma pushing through the Lithosphere
- Volcanoes over a Hotspot
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