Download PLATE TECTONICS REVIEW (part 2) PLATE BOUNDARIES

PLATE TECTONICS REVIEW (part 2)
PLATE BOUNDARIES DIAGRAM:
1. Which type of boundary occurs at X?
A DIVERGENT BOUNDARY.
2. What feature occurs at Y, and how does it
form?
A TRENCH IS FORMING. IT FORMS AS
OCEANIC CRUST GOES BENEATH THE
CONTINENTAL CRUST. (SUBDUCTION)
3. What is happening at Z?
SUBDUCTION- ONE PLATE (B) IS
PLUNGING BENEATH THE OTHER (C)
AND MELTING BACK INTO THE MANTLE.
4. What type of plate boundary occurs at Y?
CONVERGENT
5. What feature occurs at X and how does it
form?
MID OCEAN RIDGE- FORMS FROM A
DIVERGENT BOUNDARY. AS THE
PLATES DRIFT APART MOLTEN
MATERIAL ERUPTS AND COOLS
FORMING NEW CRUST.
EARTH’S INTERIOR DIAGRAM:
1. Earth’s solid inner core is surrounded by
which layer?
OUTER CORE.
2. The asthenosphere is part of which layer of
Earth?
MANTLE.
3. Which layer would you expect pressure to be
the greatest?
INNER CORE.
4. According to the theory of plate tectonics
which layer of the Earth is broken up into
separate sections called plates?
LITHOSPHERE. (CRUST)
5. Which layer is made up partly of crust and
partly of mantle material? LITHOSPHERE.
6. Based on the diagram describe on major
difference between oceanic crust and
continental crust.
CONTINENTAL CRUST IS THICKER THAN
OCEANIC CRUST.