upthrow

American  

[uhp-throh, uhp-throh] / ˈʌpˌθroʊ, ʌpˈθroʊ /

noun

1. an upheaval, as of the earth's surface.

2. Geology. an upward displacement of rock on one side of a fault.

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verb (used with object)

upthrew, upthrown, upthrowing

1. to throw or cast up or upward.

upthrow British  

/ ˈʌpˌθrəʊ /

noun

1. geology the upward movement of rocks on one side of a fault plane relative to rocks on the other side

2. rare an upward thrust or throw; upheaval

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Etymology

Origin of upthrow

First recorded in 1590–1600; up- + throw

Example Sentences

There has also been a certain amount of upthrow owing to the hydrostatic pressure.

From The Birth-Time of the World and Other Scientific Essays by Joly, John

The pool is simply due to the reversal of the natural slope of the river-bed, caused by the formation of a roll or undulation in the ground on the upthrow side of the fault.

From A Study of Recent Earthquakes by Davison, Charles

Out, traitor!" cried the girl with a quick, scornful upthrow of the chin, "it is the smile that saves you, Louis, lad.

From Patsy by Crockett, S. R. (Samuel Rutherford)

The upthrow is uniformly on the eastern side of the fault.

From A Study of Recent Earthquakes by Davison, Charles

For the next half-mile, the river keeps to the upthrow side of the fault, the scarp of which blocks the tributary streams from the west, forming a number of small pools.

From A Study of Recent Earthquakes by Davison, Charles

Related Words

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