Earthquakes-Powerpoint-2.pptxEarthquakes-Powerpoint-2.pptxEarthquakes-Powerpoint-2.pptxEarthquakes-Powerpoint-2.pptx

Earthquakes-Powerpoint-2.pptxEarthquakes-Powerpoint-2.pptxEarthquakes-Powerpoint-2.pptxEarthquakes-Powerpoint-2.pptx

1. Faults, Earthquakes and Uplift Move it, move it !!

2. What are they? Fault: a break or fracture in the crust of Earth. Earthquakes: shaking or trembling of the earth caused by movement along a fault. Uplift: upward movement of Earth’s crust.

3. Faults ■ Faults are blocks of the earth’s crust that meet together. Scientists identify four types of faults, characterized by the position of the fault plane, the break in the rock and the movement of the two rock blocks. ■ Faults lines are under enormous pressure from the two pieces of the earth’s crust pushing together. ■ The faults will eventually give way to the pressure causin g earthquakes and creating mountain ranges.

4. What’s in the faults?

5. What’s in the faults? Foot Wall T he rocks on the lower side of an inclined fault plane or mineral vein

6. What’s in the faults? Hanging Wall T he upper or overhanging wall of an inclined vein, fault, or other geologic structure.

7. What’s in the faults? Fault Plane The plane, or surface formed between the two rock blocks that slip one with the other during an earthquake

8. Types of Faults Strike-slip fault Normal fault Reverse fault

9. Normal Fault It is a type of dip-slip fault where the hanging wall moves downwards from the footwall

10. Normal Fault

11. Reverse Fault It is a dip-slip fault in which the hanging wall moves upwards, relative to the footwall

12. Reverse Fault

13. Strike Slip Fault a fault on which the two blocks slide past one another.

14. Strike Slip Fault

15. Faults

16. Mountains and mountain ranges

17. MOUNTAIN as a landform that rises at least 1,000 feet (300 meters) or more above its surrounding area.

18. MOUNTAIN RANGE A series of mountains or hills arranged in a line and connected by high ground mountain