chapter 25 Flashcards
Hess discovered the system of mountains ranges on the seafloor separated by valleys, which he called
mid-ocean ridge
A long, narrow depression called a … forms in between peaks along the mid-ocean ridge.
rift valley
the boundary where two plates collided is called
convergent plate boundary
when a thick and buoyant continental plate meets a thin a dens oceanic plate, denser plate dives beneath the continent in in process called
Subduction
the boundary between two plates that are moving apart is called
divergent plate boundary
this type of boundary where plates slides horizontally past each other in opposite directions is called
transform plate boundary
is the sudden movement or vibration of the ground that occurs when rocks slip and slips and slides along enormous cracks in the earths crust.
earthquake
a… is a crack in earths crust along which rock has moved
fault
this sudden release of strain energy as rock moves along a fault is called
elastic rebound
the point of origin for an earthquake is called a
focus
the point on Earths surface directly above the focus is called the
epicenter
how divergent plate boundaries
they come apart
what are two examples of divergent plate boundaries
mid ocean ridge (made oceanic crust)
East African rift (made up of two continental crusts)
how do transform plates Boundaries
they slide by each other
what is a specific example of a transform plate boundary
San andreas fault(two continental crusts
