单词 | way-up |
释义 | way-upn. Geology. Vertical orientation or sequence; esp. the sequence of strata which corresponds to the chronological order of formation, with the most recent identified as uppermost; (also) the position of a stratum within such a sequence. ΘΚΠ the world > the earth > structure of the earth > structural features > sedimentary formation > [noun] > stratum > position or direction of strata > way up way-up1955 1955 Q. Jrnl. Geol. Soc. 110 206 No direct evidence of the way-up of the quartzite in the Mulnamin core is available but, from observations in the succeeding group, it is uninverted. 1969 G. M. Bennison & A. E. Wright Geol. Hist. Brit. Isles ii. 34 Certain characters, such as..the way-up of shells, provide evidence of bottom conditions and the strength of currents. 1982 J. D. Collinson & D. B. Thompson Sedimentary Structures vi. 97/1 Aeolian structures could help to establish way-up in highly dipping sequences. 2008 R. P. Barnes Geol. Whithorn, Kirkcowan & Wigtown District (Brit. Geol. Surv.) iv. 17/1 Internal and external sedimentary structures allow the ‘way-up’ of the sequence to be determined locally. This entry has been updated (OED Third Edition, December 2015; most recently modified version published online December 2021). < n.1955 |
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