Permo-Triasn.adj.

Brit.

/pəːməʊˈtrʌɪas/, U.S.

/ˌpərmoʊˈtraɪəs/

Origin: Of multiple origins. Partly formed within English, by compounding. Partly formed within English, by clipping or shortening. Etymons: -o- connective, trias n.; Permo-Triassic adj.

Etymology: Partly < Perm- (in Permian adj.) + -o- connective + trias n., and partly (especially in use as adjective) shortened < Permo-Triassic adj.

= Permo-Triassic adj. and n.

ΘΚΠ

the world > the earth > structure of the earth > age or period > [noun] > primary or Palaeozoic > Permian-Trias transition

Permo-Trias1897

the world > the earth > structure of the earth > age or period > stratigraphic units > [noun] > Permo-Triassic

Permo-Trias1897

1897 Science 2 Apr. 559/1 The Red Beds (Permotrias) were found resting against one of the granite mosses.

1926 Proc. Geologists' Assoc. 37 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.

1926 Proc. Geologists' Assoc. 37 1 In Britain the Permo-Trias formations are always unconformable to and rest upon an uneven surface of the rocks below.

1969 G. M. Bennison & A. E. 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.

1990 Philos. Trans. (Royal Soc.) A. 331 122 The most common exotic blocks belong to the Maubisse Formation that accumulated in an Australian Gondwana cratonic basin during the Permo-Trias.

1995 Water, Air & Soil Pollution 85 2497 The major parent materials from which Scottish soils have developed are glacial till,..Carboniferous sediments and Permo-Trias sediments.

This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).

单词	permo-trias
释义	Permo-Triasn.adj. Brit. /pəːməʊˈtrʌɪas/, U.S. /ˌpərmoʊˈtraɪəs/ Origin: Of multiple origins. Partly formed within English, by compounding. Partly formed within English, by clipping or shortening. Etymons: -o- connective, trias n.; Permo-Triassic adj. Etymology: Partly < Perm- (in Permian adj.) + -o- connective + trias n., and partly (especially in use as adjective) shortened < Permo-Triassic adj. = Permo-Triassic adj. and n. ΘΚΠ the world > the earth > structure of the earth > age or period > [noun] > primary or Palaeozoic > Permian-Trias transition Permo-Trias1897 the world > the earth > structure of the earth > age or period > stratigraphic units > [noun] > Permo-Triassic Permo-Trias1897 1897 Science 2 Apr. 559/1 The Red Beds (Permotrias) were found resting against one of the granite mosses. 1926 Proc. Geologists' Assoc. 37 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. 1926 Proc. Geologists' Assoc. 37 1 In Britain the Permo-Trias formations are always unconformable to and rest upon an uneven surface of the rocks below. 1969 G. M. Bennison & A. E. 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. 1990 Philos. Trans. (Royal Soc.) A. 331 122 The most common exotic blocks belong to the Maubisse Formation that accumulated in an Australian Gondwana cratonic basin during the Permo-Trias. 1995 Water, Air & Soil Pollution 85 2497 The major parent materials from which Scottish soils have developed are glacial till,..Carboniferous sediments and Permo-Trias sediments. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). < n.adj.1897
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