PRESENTATION OUTLINE
PLATE TECTONICS -A THEORY EXPLAINING THE STRUCTURES OF THE EARTHS CRUST AND MANY ASSORTED PHENOMENA AS A RESULT FORM THE INTERACTION OF THE RIGID LITHOSPHERE PLATES THAT MOVE SLOWLY.
Convection currents- the flow that transfers heat within a fluid.
Slab pull- it is the motion of the tectonics plates that can be accounted for it's subduction.
Ridge push- sliding plates that force a propose mechanism for plate motion in plate tectonics.
Diverge plate boundary- a linear feature that exist between two tectonic plates that move away from each other.
On land divergent plate boundaries form rift valleys.
In the ocean, divergent plate boundaries form the mid ocean ridge.
When ocean and continental crust converge they form volcano arcs like the ones along the west coast of South America.
Convergent plate boundary- it is an actively deforming region where two or more tectonic plates move toward each other and collide.
When ocean and ocean crust converges they form island arcs like Japan islands and Aleutian Islands.
When continental crust converges with other continental crust it forms mountains like the Himalayas.
Subduction zone- there are sites of high rating of volcanism and earthquakes.
Deep ocean trench- it is hemispheric scale long but narrow topographic depressions of the sea floor. EX: Puerto Rico trench
Transform plate boundaries- it also know as plate boundary since neither plates destroys the lithosphere.
When plates move along transform boundaries it causes earthquakes.
A example of a transform boundary is San Andreas in California.
