back thrust
back thrust A thrust in which displacement is in an opposite direction to that of the main thrust propagation. Back thrusts are thought to form as a result of layer-parallel shortening in a late stage of thrust sequences.
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he lay on his back , back / bak/ • n. 1. the rear surface of the human body from the shoulders to the hips: he lay on his back ∎ the corresponding upper surface of an ani… Backing , backing •backing, blacking, packing, sacking, tracking, whacking •ranking, spanking •nerve-racking •marking, sarking •making, taking, undertaking •ma… Aback , a·back / əˈbak/ • adv. 1. archaic toward or situated to the rear: the little strip of pasture aback of the house. 2. Sailing with the sail pressed ba… Cuesta , cuesta An asymmetric land-form that consists of a steep scarp slope and a more gentle dip (or back) slope. It is typical of areas underlain by strata… Reverse , re·verse / riˈvərs/ • v. [intr.] move backward: the truck reversed into the back of a bus. ∎ [tr.] cause (a vehicle) to move backward: I got in the c… humpback , hump·back / ˈhəmpˌbak/ • n. 1. (also humpback whale) a baleen whale (Megaptera novaeangliae) that has a hump (instead of a dorsal fin) and long white…
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back thrust