overthrustingn.

Brit.

/ˈəʊvəˌθrʌstɪŋ/,

/ˌəʊvəˈθrʌstɪŋ/, U.S.

/ˈˌoʊvərˈˌθrəstɪŋ/

Origin: Formed within English, by derivation. Etymons: over- prefix, thrusting n.

Etymology: < over- prefix + thrusting n. Compare overthrust n. and later overthrust v. Compare also underthrusting n. at underthrust v.

Geology.

The action of overthrust v.; overthrust.

ΚΠ

1883 Geol. Mag. Aug. 339 In many cases this overthrusting effect is due to the relief of downward pressure caused by the erosion of the brow of the arch.

1908 H. B. C. Sollas & W. J. Sollas tr. E. Suess Face of Earth III. ix. 396 Holmquist concludes that, owing to the continuous subsidence of the eastern part (i.e. of the shield or foreland) the overthrusting practically becomes an underthrusting.

1950 Sci. Monthly July 36/2 By this overthrusting, the coves and their surroundings were covered by the mass of rocks of the Ocoee series.

1986 J. Goff et al. Habitat Palaeozoic Gas in NW Europe (BNC) 37 The disturbance of the palaeogeothermal gradient caused by superimposing one rock slab onto another during overthrusting.

This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022).

单词	overthrusting
释义	overthrustingn. Brit. /ˈəʊvəˌθrʌstɪŋ/, /ˌəʊvəˈθrʌstɪŋ/, U.S. /ˈˌoʊvərˈˌθrəstɪŋ/ Origin: Formed within English, by derivation. Etymons: over- prefix, thrusting n. Etymology: < over- prefix + thrusting n. Compare overthrust n. and later overthrust v. Compare also underthrusting n. at underthrust v. Geology. The action of overthrust v.; overthrust. ΚΠ 1883 Geol. Mag. Aug. 339 In many cases this overthrusting effect is due to the relief of downward pressure caused by the erosion of the brow of the arch. 1908 H. B. C. Sollas & W. J. Sollas tr. E. Suess Face of Earth III. ix. 396 Holmquist concludes that, owing to the continuous subsidence of the eastern part (i.e. of the shield or foreland) the overthrusting practically becomes an underthrusting. 1950 Sci. Monthly July 36/2 By this overthrusting, the coves and their surroundings were covered by the mass of rocks of the Ocoee series. 1986 J. Goff et al. Habitat Palaeozoic Gas in NW Europe (BNC) 37 The disturbance of the palaeogeothermal gradient caused by superimposing one rock slab onto another during overthrusting. This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022). < n.1883
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