GEOLOGY
STRUCTURAL GEOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Fault blocks move past each other horizontally.
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Fault blocks move past each other vertically.
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The faults do not move at all.
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The faults do move but not enough to cause anything.
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Detailed explanation-1: -Faults which move horizontally are known as strike-slip faults and are classified as either right-lateral or left-lateral. Faults which show both dip-slip and strike-slip motion are known as oblique-slip faults.
Detailed explanation-2: -Detailed Description. Strike-slip faults are vertical (or nearly vertical) fractures where the blocks have mostly moved horizontally. If the block opposite an observer looking across the fault moves to the right, the slip style is termed right-lateral; if the block moves to the left, the motion is termed left-lateral.
Detailed explanation-3: -10.6c: Shearing forces cause rocks to slide horizontally past one another such as along transform plate boundaries to produce extensive fault systems.
Detailed explanation-4: -After a quake along a strike-slip fault, railroad tracks and fences can show bends and shifts. And, of course, the motion can cause bridges and buildings to collapse. With both normal and reverse faults, movement occurs vertically.
Detailed explanation-5: -Strike-slip fault-the rocks on either side of the fault slip past each other sideways with little up-or-down motion. Normal Fault-The fault is at an angle, so one block of rock lies above the fault while the other block lies below the fault.