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

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Example Sentences

See Examples For:

upthrow upthrew upthrowing upthrown

Thrust faults hade to the upthrow; the hanging wall has gone up.

From The Elements of Geology by William Harmon Norton

In Figure 184 the right side has gone down relatively to the left; the right is the side of the downthrow, while the left is the side of the upthrow.

From The Elements of Geology by William Harmon Norton

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 S. R. (Samuel Rutherford) Crockett

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 Charles Davison

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 John Joly

Then, the vast volcano burst; rent the whole mass; upthrew the ancient rocks; which now in divers mountain tops tell tales of what existed ere Mardi was completely fashioned.

From Mardi: and A Voyage Thither, Vol. II by Herman Melville

Then, quick The sash upthrowing, she made as if to speak Harshly; but still he held his quiet eyes Upon her.

From Rose and Roof-Tree — Poems by George Parsons Lathrop

This a modern example of a Gilbert-type delta, which is a delta composed primarily of coarse material actively eroded from the mountainous upthrown block to the north.

From Textbooks ● Jan. 1, 2017

Here and there you discover a fretful thick-bodied pug, with his upthrown snub nose, which the popular speech styles a saddle-nose.

From The Student-Life of Germany by William Howitt

Flora was within half a step of him with her right arm upthrown.

From Kincaid's Battery by Alonzo Kimball

When the great clouds of violently upthrown earth had settled, there was no sign of Abud.

From Astounding Stories, July, 1931 by Various

If fid-elitie to art inspire me a conceitednezz as high"--his upthrown hand quivered at arm's length--"as the flagpole of Hotel St. Louis dome yonder, tha'z better than a modestie withoud that.

From The Flower of the Chapdelaines by F. C. (Frederick Coffay) Yohn

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Related Words

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• ascent
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