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Divergent Plate Boundaries  Divergent Boundary: Between two lithospheric plates that are moving apart  DI-vergent/DI-vide  Rift Valleys: deep valleys at the center of a mid-ocean ridge  Sea-floor spreading: molten rock forces its way upward through cracks or rifts, forming new rock  Result in hydrothermal vents

On page 5 of the ESRT, where are there Divergent Boundaries? Draw it out with Geology.Com! Draw it out with Geology.Com

Convergent Plate Boundaries  Convergent Boundary: Between two plates that are moving toward each other  CO-nvergent/CO-me together  Subduction boundary: An area where an oceanic plate goes beneath another plate  Results in volcanoes

On page 5 of your ESRT, where are the CONVERGENT boundaries? Draw it out again with Geology.com Draw it out again with Geology.com

Collision Plate Boundary  Collision Boundary: Type of convergent boundary in which 2 continents may become 1 continent  Example: Himalayas->result of India pushing into China at a rate of 5cm per year

Transform Boundary  Transform Boundary: Located between 2 plates that are sliding past each other.  According to page 5 of the ESRT, where is there a transform boundary?  Guess what?? Draw it out! Guess what?? Draw it out!

Causes of Plate Movement  Mantle convection: The process in which heat from Earth’s inner and outer cores is transferred through the mantle  Ridge push: A force exerted by cooling, subsiding rock on the spreading lithospheric plates at the mid-ocean ridge  Slab pull: A force at a subduction boundary that the sinking edge of the sinking plate exerts on the rest of the plate

Visualization  Seeing is believing Seeing is believing  In case you need another look In case you need another look