EARTH SCIENCE
TECTONICS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Fault
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Mid-Ocean Ridge
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Ocean Trench
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Focus
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Detailed explanation-1: -A fracture is any separation in a geologic formation, such as a joint or a fault that divides the rock into two or more pieces. A fracture will sometimes form a deep fissure or crevice in the rock.
Detailed explanation-2: -When rocks break in response to stress, the resulting break is called a fracture. If rocks on one side of the break shift relative to rocks on the other side, then the fracture is a fault.
Detailed explanation-3: -A fault is a fracture or zone of fractures between two blocks of rock. Faults allow the blocks to move relative to each other. This movement may occur rapidly, in the form of an earthquake-or may occur slowly, in the form of creep.
Detailed explanation-4: -Movement of rock along a fault may occur as a continuous creep or as a series of spasmodic jumps of a few metres during a few seconds. Such jumps are separated by intervals during which stress builds up until it overcomes the frictional forces along the fault plane and causes another slip.
Detailed explanation-5: -When rocks break in this way, they move along surfaces, or faults. A fault is the surface along which rocks move when they pass their elastic limit and break. A tremendous amount of force is required to overcome the strength of rocks and to cause movement along a fault.