| 单词 | oceanic ridge |
| 释义 | > as lemmasoceanic ridge oceanic ridge n. Geology a ridge on the ocean floor; (now) spec. = mid-ocean ridge n. at mid-ocean adj. ΘΚΠ the world > the earth > water > sea or ocean > region of sea or ocean > [noun] > undersea ridge ridge system1819 oceanic ridge1915 sill1933 ridge1944 mid-ocean ridge1961 ocean ridge1961 1915 Bull. Amer. Geogr. Soc. 47 464 The grouping of the islands into belts..and the form of oceanic ridges and troughs are discussed. 1954 Proc. Royal Soc. A. 222 341 Three processes are described that might lead to the formation of oceanic ridges. 1989 K. Barratt Logic & Design (BNC) The plate tectonics that give rise to earthquakes, volcanoes, fold mountains and the oceanic ridges. < as lemmas |
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