1. Earthquakes and Earth’s Dynamic Crust

4. Original Horizontality (law of superposition):
Assumption that sedimentary/igneous rocks form in horizontal layers

5. Folded: Layers are bent/curved
Deformity
Folded: Layers are bent/curved

6. Deformity Faulted: Offset or displaced along a crack (fault line)

7. Deformity
Tilting

8. Layer H - IGNEOUS INTRUSION
A mass of igneous rock formed when molten rock (magma) squeezes or melts into pre-existing rocks and crystallizes

9. Which rock layer is youngest? Which rock layer is oldest?

10. Write the order of the correct sequence
of layers from oldest to youngest

11. Earthquakes Natural rapid shaking of the lithosphere
caused by a release of energy

12. Earthquakes Most earthquakes are caused by the
movement along fault lines (plate boundaries)

13. What is a plate boundary?
Area where two sections of the lithosphere are slowly moving and interacting

14. Oceanic Plate
Dense lithospheric plate located at the bottom of the ocean

15. Continental Plate
Lithospheric plate forming large landmasses (not as dense as oceanic crust)

16. Convergent Plate Boundary
Continental plate and Oceanic Plate pushing
towards each other
**Creates a subduction zone**

17. Subduction Zone
Area where a DENSER oceanic plate, moves underneath the continental plate

18. Convergent Plate Boundary
Continental plate and Continental plate pushing
towards each other
**Can create mountains**

19. Divergent Plate Boundary
Located where 2 tectonic plates are moving away from each other

20. Famous Divergent Plate Boundary
Mid-Atlantic Ridge (or MOR, Mid-Ocean Ridge)
Longest mountain range in the world

21. Transform Plate Boundary
Two plates SLIDE past one another

22. Famous Transform Plate Boundary

23. During an earthquake, potential energy
Earthquakes
During an earthquake, potential energy
stored in the rocks is given off as seismic waves (p-waves and s-waves)