英语词汇“isopach”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

isopach

释义

isopach|ˈaɪsəʊpæk|
[f. iso- + Gr. παχ-ύς thick.]
1. Geol. = isopachyte.
1918Private Let. U.S. Geol. Survey (G. & C. Merriam Co. files) 10 May, Isopach, isopachous—noun and adjective, referring to lines on a map that shows equal thicknesses of beds, e.g. coal beds.1925Bull. Amer. Assoc. Petroleum Geologists IX. 890 The term ‘isopach’ is used to designate lines through points of equal thickness.Ibid., The isopachs swing from a general east-and-west direction to the north.1957Bull. Geol. Survey Gt. Brit. XII. 55 The total stratigraphical thickness in feet at each locality was plotted and isopachs drawn through points of equal thickness.1969Nature 8 Nov. 536/2 The measured thickness of the pyroclastic deposits at various localities and the proposed isopachs are shown in Fig. 2. The isopachs generally extend south-eastwards from the eruptive centres, indicating distribution under the influence of a prevailing north-westerly wind.
2. = isopachic n.
1936Jrnl. R. Aeronaut. Soc. XL. 55 An isopach is defined..as lines along which the sum of the principal stresses is constant.1962J. C. Jaeger Elasticity, Fracture & Flow (ed. 2) iv. 182 Isopachs are curves of constant mean stress σ₁ + σ₂.

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