| 释义 |
Permo-Triassic, a. Geol.|ˌpɜːməʊtraɪˈæsɪk|
[f. as Permo-Carboniferous + Triassic a.]
Of or pertaining to the Permian and the Triassic systems or periods. Also absol.
1876[see Silurian a. 2 a]. 1903J. Le Conte Elements Geol. (ed. 5) iii. v. 619 Some indications of glaciation have been reported from other horizons than the Permo-Triassic. 1926Proc. Geologists' Assoc. XXXVII. 11 By the close of Permo-Triassic times the climate would have altered considerably from that at the commencement of the period. 1956W. Edwards in D. L. Linton Sheffield i. 3 They are being exploited, for oil as well as for coal, below the ‘cover’ of Permo-Triassic rocks. 1969Bennison & Wright Geol. Hist. Brit. Isles xii. 272 The drawing of the Permo-Triassic boundary is fraught with difficulties. 1977Offshore Engineer May 51/1 Effective basement in the Gulf of Valencia area appears to be hard Carboniferous sandstones and clays, overlain in some areas by Permo-Triassic sands and evaporites.
So Permo-ˈTrias, the Permo-Triassic system or period.
1926Proc. Geologists' Assoc. XXXVII. 1, I am convinced that the divisions of the Permo-Trias, in Britain, are not time-divisions, but represent, to a considerable extent, merely different conditions of deposition. Ibid., In Britain the Permo-Trias formations are always unconformable to and rest upon an uneven surface of the rocks below. 1969Bennison & Wright Geol. Hist. Brit. Isles xi. 255 Strata of continental facies were laid down over wide areas in the succeeding Permian and Triassic Periods... Frequently considered together as the Permo-Trias, there are however significant palaeontological differences. |