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normal fault
[ nawr-muhl fawlt ]
noun
, Geology.
- a fault along an inclined plane in which the upper side or hanging wall appears to have moved downward with respect to the lower side or footwall ( reverse fault ).
normal fault
- A geologic fault in which the hanging wall has moved downward relative to the footwall. Normal faults occur where two blocks of rock are pulled apart, as by tension.
- Compare reverse faultSee Note and illustration at fault
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Word History and Origins
Origin of normal fault1
First recorded in 1875–80
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Example Sentences
A normal fault with a hade of 15°, the original fault scarp remaining.
From Project Gutenberg
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