Earth Science Topography Maps Flashcards
At a transform boundary, two plates ___, moving in opposite directions, which often causes earthquakes. Crust is neither created nor destroyed.
slip past each other
At a convergent boundary, two plates move ___ or converge (collide).
together
two oceanic plates collide - the most dense oceanic plate (coolest plate which is furthest from the mid-oceanic ridge) sinks under the other oceanic plate at a ___ (subduction zone; pulled into the mantle and melted)
deep-ocean trench
an oceanic plate collides with a continental plate – the ____ plate (more dense) sinks under the ____ plate at a deep ocean trench (subduction zone)
oceanic
continental
two continental plates collide – neither plate is dense enough to sink into the mantle, so the crust is squeezed into mighty ___.
mountain ranges
At a divergent boundary, two plates move ___, or diverege
apart
___ is where the sea-floor is spreading occurs
mid-ocean ridge
___ where two continental plates diverge
rift valley
Two examples of divergent boundaries are:
a. mid-ocean ridge
two continental plates collide – neither plate is dense enough to sink into the mantle, so the crust is squeezed into mighty ___.
mountain ranges
At a divergent boundary, two plates move ___, or diverege
apart
___ is where the sea-floor is spreading occurs
mid-ocean ridge
___ where two continental plates diverge
rift valley
Two examples of divergent boundaries are:
a. mid-ocean ridge
b. rift valley