英语词汇“miogeosynclinal”的英英意思、用法、释义、翻译、读音、例句、短语、词组、英语词典-本地帮

单词

miogeosynclinal

释义

miogeosynclinal, a. Geol.|ˌmaɪəʊdʒiːəʊsɪnˈklaɪnəl|
[ad. G. miogeosynklinal (H. Stille Einführung in den Bau Amerikas (1940) i. 15), f. Gr. µείων less: see geosynclinal a. and n.]
Of or pertaining to a miogeosyncline. So miogeoˈsyncline, a geosyncline in which the process of sedimentation appears to have been accompanied by little or no volcanism; esp. one situated between a larger, volcanic geosyncline (a eugeosyncline) and an area of the crust that has achieved stability (a craton).
1942Bull. Geol. Soc. Amer. LIII. 1642 In contrast to the Magog eugeosyncline, the Champlain belt contains dominant carbonates of shallow-water origin, unaffected by subsequent volcanism; it is a miogeosyncline.Ibid. 1643 The eastern, miogeosynclinal belt has the well-described sequence of southeastern Idaho.1951Mem. Geol. Soc. Amer. XLVIII. 4 As volcanic rocks are practically absent in the orthogeosynclines that adjoin the North American early Paleozoic craton, they are thus miogeosynclines.1969Bennison & Wright Geol. Hist. Brit. Isles iii. 58 No vulcanicity is known and the succession is probably indicative of deposition on an unstable shelf at the margin of a miogeosyncline.1971Nature 24 Sept. 252/1 The West Andean geosyncline was divided into a ‘eugeosynclinal’ volcanic (coastal range) zone and a ‘miogeosynclinal’ sedimentary (longitudinal valley) zone during the Jurassic.1972Sci. Amer. Mar. 30/2 When one examines the structure of ancient folded mountains, one finds that the classic geosyncline is divided into a couplet: two adjacent and parallel structures consisting of a eugeosyncline (true geosyncline) and a miogeosyncline (lesser geosyncline), often shortened to eugeocline and miogeocline.

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