Plate Boundaries and Interactions Flashcards
move on top of the asthenosphere 1-10 cm per year
tectonic plates
move apart
divergent
move toward each other
convergent
move past each other
transform
what happens when two plates move away from each other under divergent plate boundaries?
a gap or rift is created between them
mid oceanic ridges?
oceanic-oceanic divergent plate boundaries
rift valley (great east african keme)
continental-continental divergent plate boundary
new crust is created by intruding magma and lava on the ocean floor as plates move apart
divergent plate boundary
trenches, volcanic mountain underwater
oceanic-oceanic convergent plate boundary
mountain ranges, volcanoes, trenches
oceanic-continental convergent plate boundary
mountain ranges, volcanic mountain ranges
continental-continental convergent plate boundary
deepest trench
mariana trench
biggest mountain range
andes mountain range in south africa
only EARTHQUAKES are formed
transform plate boundary
tallest mountain range
himalayas mountain range
fracture or zone of fractures between two blocks (crack)
fault
space or boundary of plate
plate boundaries
where plates interact
fault plate
block that is below the plain fault
footwall
block above the plane or fault
hanging wall
angle of crack (slat movement)
dip-slip fault
hanging wall moves downward
normal fault
hanging wall moves upward
reverse fault
type of reverse fault where the angle of the dip is 45’ or less
thrust fault
right to left
strike slip fault
combination of strike slip and dip slip
oblique slip fault
