4.faults
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Faults are cracks or fractures in the Earth's crust caused by stresses that induce brittle deformation of rocks. There are three main types of faults: dip-slip faults which involve vertical motion, strike-slip faults with horizontal motion, and oblique-slip faults with an oblique motion. Normal faults occur during extension while reverse faults are caused by compression. The elastic rebound theory explains that tectonic plates accumulate energy during periods of stress until a sudden slip occurs along the fault, releasing energy in the form of seismic waves and causing earthquakes.
4.faults
- 1. FAULTS
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- 10. THE SECOND MOST IMPORTANT REASON FOR EARTHQUAKES TECTONIC PLATES
- 11. A MATTER OF DEPTH
- 12. FAULTS FAULTS ARE ONE OF THE STRUCTURAL FEATURES OF ROCKS WHILE ROCKS AT OR NEAR THE SURFACE OF THE EARTH ARE COOL & BRITTLE, ROCKS BELOW THE SURFACE OF THE EARTH ARE HOT AND TEND TO MOVE
- 13. FAULTS A LOT OF EXTERNAL FORCES ACT UPON THE ROCKS AND CAUSE STRESS ON THEM DUE TO THIS STRESSES, ROCKS EITHER UNDERGO DUCTILE DEFORMATION OR BRITTLE DEFORMATION IF THEY UNDERGO DUCTILE DEFORMATION, ROCKS DEVELOP FOLDS. IF THEY UNDERGO BRITTLE DEFORMATION, THEY DEVELOP FAULTS.
- 14. FAULTS FAULT IS DEFINED AS A SPLIT OR CRACK OR FRACRTURE IN THE ROCK PRESENT IN EARTH’S CRUST CHARACTERISED BY RELATIVE DISPLACEMENT OF ONE SIDE OVER THE OTHER.
- 15. FAULTS
- 16. FAULTS
- 17. FAULT LINE A FAULT LINE IS THE INTERSECTION OF A FAULT PLANE AND EARTH SURFACE IT IS THE SURFACE TRACE OF A FAULT
- 18. FAULTS
- 19. FAULTS
- 20. TYPES OF FAULTS FAULTS ARE CLASSIFIED INTO THREE TYPES NAMELY DIP SLIP FAULTS (VERTICAL MOTION) STRIKE SLIP FAULTS (HORIZONTAL MOTION) OBLIQUE SLIP FAULTS (OBLIQUE MOTION)
- 21. TYPES OF FAULTS
- 22. DIP SLIP FAULTS Normal Faults (Extension) Reverse Faults/Thrust Faults (Compression)
- 23. NORMAL FAULTS
- 24. REVERSE FAULTS
- 25. STRIKE SLIP FAULTS Left Lateral Right Lateral
- 31. FAULTS & EARTHQUAKES FAULTS CAN CAUSE TREMENDOUS EARTHQUAKES THE ORDER OF CAUSE AND IMPACT OF EARTHQUAKES STRIKE SLIP OBLIQUE SLIP DIP SLIP
- 36. ELASTIC REBOUND THEORY The elastic rebound theory is an explanation for how energy is spread during earthquakes. As plates on opposite sides of a fault are subjected to force and shift, they accumulate energy and slowly deform until their internal strength is exceeded. At that time, a sudden movement occurs along the fault, releasing the accumulated energy, and the rocks snap back to their original undeformed shape.