| 单词 | salt dome |
| 释义 | > as lemmassalt dome salt dome n. a dome-shaped geological structure formed around and over a salt plug, often the source of oil or other minerals; also, a salt plug. ΘΚΠ the world > the earth > structure of the earth > structural features > discontinuity or unconformity > [noun] > intrusion > plug plug1906 salt dome1908 salt plug1952 1908 Science 28 Feb. 348/1 The expansive force of the salt from the crystallizing source will be very circumscribed and the salt domes local in character. 1928 E. R. Lilley Geol. Petroleum & Nat. Gas xvi. 376 The salt dome..is known in areas where it does not appear to be associated with oil. 1945 M. F. Glaessner Princ. Micropalaeontol. ix. 232 Lower Tertiary, Cretaceous, and Upper Jurassic microfossils (foraminifera and ostracodes) have been described from the salt-dome area..between the northern shore of the Caspian sea and the southern foothills of the Ural Mountains. 1964 W. C. Putnam Geol. vi. 134/1 Many of the Gulf Coast salt domes are crowned with an irregular covering of limestone, anhydrite, gypsum, and occasionally sulphur, termed the cap rock. 1976 Billings (Montana) Gaz. 5 July 4- a/2 It not only will transmit needed crude oil to the Midwest, it also will make usable the vast salt domes of the Williston basin for strategic storage of crude. < as lemmas |
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