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  • noun

Synonyms for upthrust

(geology) a rise of land to a higher elevation (as in the process of mountain building)

References in periodicals archive ?
Earthquakes along eight major fault lines that straddle the canyon (we felt jolts one night at Phantom Ranch), volcanic eruptions, powerful upthrusts, weather, and the Colorado River's thundering descent have worked in concert to make this gorge and reveal rocks from three of the earth's geological eras, ending in the geologic basement with hard, black 1.
Here, in a garden of angled upthrusts, is a ridge with precise layers of red and tan, like Neapolitan ice cream.
In Murray Canyon, granitic upthrusts will tempt rock scramblers.