| 释义 |
ˈdownwarp Geol.
[down adv. 41.]
A broad surface depression; a syncline. So ˈdownwarping, the local sinking of the earth's surface to form such a depression.
1917Prof. Papers U.S. Geol. Surv. xciii. v. 110/2 From Gibson the axis of the downwarp has a general north-northeast trend to the great bend of Chaco River. 1917Jrnl. Geol. XXV. 146 The downwarping of certain layers near the top of the Lockport dolomite. 1936Geogr. Jrnl. LXXXVII. 165 This resistance was not however sufficient to prevent another downwarp in Southern India. 1950F. E. Zeuner Dating Past (ed. 2) vii. 280 A slow down-warping to the north is going on. 1955Brown & Dey India's Min. Wealth (ed. 3) xviii. 663 The tectonic downwarp in front of the Himalayas. 1963D. W. & E. E. Humphries tr. Termier's Erosion & Sedimentation v. 108 Local downwarping or uplift can lead rivers to reverse their courses either completely or in part. 1965A. Holmes Princ. Physical Geol. (ed. 2) xxx. 1173 The primary importance of upwarping and downwarping in providing the conditions for gravitational tectonics on a spectacular scale. |