Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Three Types of Plate Boundaries Divergent Convergent Transform or strike/slip Plates interact where they meet. Divergent boundaries— Plates move apart Example a spreading center--Mid-Atlantic Ridge The Mid-Atlantic Ridge goes through Iceland. Expeditions study unusual life Or the Great Rift Valley in Africa Convergent boundaries --plates move together Three types of Convergent Plate Boundaries oceanic –oceanic oceanic-continental continental-continental Oceanic-oceanic results in subduction of one plate results in island arc volcanoes Ocean-continental results in subduction of the oceanic plate Ocean-continental Volcanoes form when the oceanic plate reaches the lithosphere and begins to melt The less dense molten material rises and forms a volcano Because it is a mixture of basaltic oceanic crust and granitic continental crust, the lava is Andesitic continental-continental Continental-continental results in enormous mountains like the Himalayas. Transform-fault boundaries-plates slide horizontally Example--Pacific plate and the North American plate slide past each other at the San Andreas fault.