Vocabulary
the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
what is the definition of divergent boundary?
What is the place where 2 plates move apart or diverge?
What are some geological effects caused by seafloor spreading?
Volcanic activity,earthquakes, mid ocean ridges and deep sea trenches
What are the three primary layers of the earth?
What is crust, mantle, and core?
a long, narrow and extremely deep depression on the ocean floor, formed when one tectonic plate subducts beneath another
What is Deep-sea trench?
What is the definition of convergent boundary?
What is where 2 plates come together or converge
The Mid-Atlantic ridge occurs at the plate boundary between two of Earths crustal plates. Which type of boundary is this?
What is Divergent Boundary
How many main interior layers are there of the earth?
What is 4 main layers
the slope between the outer edge of the continental shelf and the deep sea floor.
What is Continental slope?
What is the definition of transform boundary
Where 2 plates slip past each other, moving in opposite directions
What is the definition of Sea floor spreading?
What is beneath the Lithosphere?
What is Asthenosphere?
The rigid outermost layer of Earth, composed of the crust and the upper, rigid mantle, which is broken into tectonic plates
What is Lithosphere
This is a characteristic of what boundary?
Sea floor spreading
What is divergent Boundary?
The ocean floor sinks beneath a deep ocean trench and back into the mantle in a process known as what?
What is Subduction
What is the Asthenosphere?
What is a partially molten zone that allows tectonic plates to move.
The hotter, weaker, and partially melted layer of the mantle beneath the lithosphere that allows the plates to move
What is Asthenosphere
This is a characteristic of which boundary?
Where volcanoes and deep sea trenches form
What is convergent boundary
How did the mid atlantic ridge form?
What is a divergent plate boundary where tectonic plates are pulled apart by mantle currents, allowing molten rock to rise from the Earth's interior to the seafloor
What is the uppermost rigid layer?
What is the Lithosphere?