1903 G. O. Smith in G. O. Smith & B. Willis Contrib. Geol. Washington 38 A relatively high portion of the divide is at its head where the downwarp between these two upwarps dies out.

1936 Geogr. Jrnl. 87 165 This resistance was not however sufficient to prevent another downwarp in Southern India.

1955 J. C. Brown & A. K. Dey India's Mineral Wealth (ed. 3) xviii. 663 The tectonic downwarp in front of the Himalayas.

2005 Jrnl. Geol. (Chicago) 113 473/1 The Eucla Basin is a downwarp of Precambrian basement.

1908 W. M. Davis Pract. Exercises Physical Geogr. v. 50 Why may the inclosed district occupied by the basin plain be described as having been bent down, or down-warped?

1917 Geogr. Rev. 3 431 This surface was formed in the Riu Ses cycle of landform development, but it has been partially downwarped, and buried under Neocene sediments, to be exposed again by the removal of the soft beds covering it.

1969 G. M. Bennison & A. E. Wright Geol. Hist. Brit. Isles iv. 71 The term geosyncline refers generally to a region of the earth's crust which has been downwarped to permit the deposition of a vast thickness..of chiefly marine deposits.

1986 New Yorker 24 Feb. 59/1 Basins flexed between them, filling as they downwarped.

2004 Ann. Rev. Ecol., Evol., & Systematics 35 631 Central parts of the Australian plate were also downwarped and inundated during the Cretaceous.