Tectonic plates By: Hephzibah Olajimi, Aileen Nicole Martinez, Mykah Paul Abilutz
How tectonic plates move? • Plates move because of the convection currents in the mantle. • Earth heats up the materials inside, the molten magma also gets heated up.
Indo australian plate • The Himalayas are formed at a continental-continental convergent boundary. Read more: http://wiki.answers.com/Q/What_mountains_formed_at_convergent_boundaries#ixzz1rpiwLpkD
South American plate • The Andes are formed at an oceanic-continental boundary. • Move west at 1.45cm/year • http://wiki.answers.com/Q/What_mountains_formed_at_convergent_boundaries#ixzz1rpiwLpkD
North American Plate • Moves south east at l.15 cm/year • The mid-ocean ridge is a volcanic feature caused by the spreading apart of oceanic plates as part of plate tectonics, and is initially formed as a result of changes in the convection currents which seek the least resistant point to the surface. The sea floor at the ridges are uplifted by rising magma. The rising magma is part of a process of heat transfer from the interior of the Earth to the surface known as a convection current. As the rising magma cools, it forms new crust which becomes part of the ridge. • Between the eurasisan plate and north american • Read more: http://wiki.answers.com/Q/How_does_a_mid-ocean_ridge_form#ixzz1rppRXj63
African plate • The East African Rift System (EARS) is one the geologic wonders of the world, a place where the earth's tectonic forces are presently trying to create new plates by splitting apart old ones. • The exact mechanism of rift formation is an on-going debate among geologists and geophysicists. One popular model for the EARS assumes that elevated heat flow from the mantle (strictly the asthenosphere) is causing a pair of thermal "bulges" in central Kenya and the Afar region of north-central Ethiopia • http://geology.com/articles/east-africa-rift.shtml
Pacific plate • North west at 8.10 m/yr