review of plate boundaries: everything in one easy picture:
TRANSCRIPT
1)DIVERGING PLATE BOUNDARYMID OCEANIC RIDGESRIFT VALLEYSVOLCANOESEARTHQUAKESEx: mid Atlantic Ridge and African rift valleySEE PAGE 92
2) CONVERGING PLATE BOUNDARY
DEEP OCEANIC TRENCHESSUBDUCTION ZONESEXTREME CONTINENTAL MOUNTAIN BUILDINGEx: Marianas Trench, Peru-Chile Trench, Himilayan mountainsSee page 103-104
4) SPECIAL “HOTSPOTS”
Caused by hotspots in the aesthenosphere, volcanoes can appear even in the middle of a plate. As the plate moves slowly, one hotspot can create a chain of volcanoes. Best example is the Hawaiian island arc.