plate boundaries
- Created by: 14whifre
- Created on: 11-05-21 15:57
View mindmap
- Plate Boundaries
- Constructive
- two plates moving away
- magma rises between plates
- oceanic - oceanic
- 2 oceanic plates moving away from each other
- magma rises and cools as it reaches sea floor
- adds new material to sea bed
- sea floor spreading
- continental - continental
- 2 continental plates moving away from each other
- crust stretches and breaks
- valley drops and creates rift valley
- Destructive
- oceanic-oceanic
- ocean trenches
- more sense plate under less dense plate
- edge of less dense plate pulled down
- island arcs
- subducted plate melts and rises to form volcano
- keeps building up until can be seen above water
- ocean trenches
- continental-oceanic
- more dense oceanic under less dense continental
- oceanic plate melts and rises through crust
- creates large volcanoes
- continental-continental
- fold mountains
- 2 continental plates collide
- crust folds upwards as it has no other pace to go
- oceanic-oceanic
- Conservative
- plates slide next to each other
- opposite directions
- same direction
- different speeds
- blocks together for a long time
- plates suddenly slip due to friction
- causes shallow focus earthquake
- plates suddenly slip due to friction
- plates slide next to each other
- Constructive
Comments
No comments have yet been made