单词 | time plane |
释义 | > as lemmastime plane time plane n. a plane showing relationships in time; a level of existence defined in terms of time; (Geology) a notional plane separating strata of different geological periods or joining fossils of the same age. ΚΠ 1877 Dickinson's Theol. Q. Apr. 207/2 Our American languages are to be furnished with congeners, and to be traced out on a time-plane. 1895 Jrnl. Geol. (Chicago) 3 916 If time periods are arbitrarily separated by horizontal time lines, or time planes, of necessity it follows that cases will be observed where faunas with Carboniferous alliance will have lived before the arbitrary Carboniferous-Devonian time line. 1931 Amer. Naturalist 65 5 The groups [of individuals] existing in a given time-plane usually differ from one another in numerous characteristics. 1969 G. M. Bennison & A. E. Wright Geol. Hist. Brit. Isles ii. 26 Lines indicating contemporaneity, so-called ‘time-planes’, are normally presented diagrammatically as horizontal. 1998 N. Thera Abhidhamma Stud. (ed. 4) v. 99 There are certainly time planes below and above the range of average human consciousness. 2004 D. R. Prothero & F. Schwab Sedimentary Geol. (ed. 2) xv. 330/1 Ash layers are geologically instantaneous and so provide a network of ‘time planes’ among the sections. < as lemmas |
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