Norianadj.1
/ˈnɔːrɪən/, U.S. /ˈnɔriən/ Geology. Now historical.
Of, relating to, or designating a former stratigraphic division of the Archaean rocks of Canada, corresponding to Upper Laurentian (see quot. 1932).
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the world > the earth > structure of the earth > age or period > [adjective] > secondary or Mesozoic > Triassic
Triassic1841
Norian1871
Carnic1897
Carnian1948
1871 T. S. Hunt in Amer. Naturalist 5 486 The rocks of the Labradorian (or rather Norian) system there repose transgressively..on the nearly vertical Laurentian gneisses. We may..regard these norites or Norian rocks as portions of a pre-Huronian system.
1888 J. Prestwich Geol. II. 20 Labradorian or Norian group.
1900 Science 20 July 83/2 With the crystalline limestones..in the Grenville, and with the Norian intrusives,..we have much in common.
1932 F. D. Adams Biogr. Mem. T. S. Hunt 212 The Norian series has been shown to have no place in the succession, being composed entirely of intrusive rocks.
This is a new entry (OED Third Edition, December 2003; most recently modified version published online March 2022).
Norianadj.2n.
/ˈnɔːrɪən/, U.S. /ˈnɔriən/ Geology.
A. adj.2
Of, relating to, or designating a stage of the Triassic period, now considered to be the second of the three stages constituting the Upper Triassic, lying above the Carnian and below the Rhaetian. Cf. Noric adj. 2.
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1893 P. Lake tr. E. Kayser Text Bk. Compar. Geol. III. 225 The separation of the Mediterranean and Jujavian Provinces throughout the Norian period, continued into the oldest phase of the Carinthian period.
1937 Bibliogr. & Index Geol. Exclusive of N. Amer. 4 75 Syntectonic origin of Norian (upper Triassic) conglomerates and calcareous breccias northwest of Tonkin, French Indo-China.
1953 J. Marwick Divisions & Faunas Hokonui Syst. 17 There are different opinions as to the genetic relationsahip of the Entomonotis group to Monotis salinaria. However it may be, both are generally assumed to be Norian.
1990 W. B. Harland et al. Geologic Time Scale 1989 iii. 52/1 The Norian stage now appears as one of the longest time spans in the Triassic or even Phanerozoic scale.
B. n.
The Norian stage.
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1936 Bibliogr. & Index Geol. Exclusive of N. Amer. 3 75 Discusses the upper Triassic of eastern Tonkin, French Indo-China, and assigns Myophora napagensis beds to the Norian (Triassic).
1961 J. Stubblefield Davies's Introd. Palaeontol. (ed. 3) iv. 102 There are a few asymmetrically-coiled forms.., mainly Cretaceous..but with one example in the Norian.
1998 Jrnl. Biogeogr. 25 204/2 Zamites truncatus..is confined to the middle Carnian of Sonora, Mexico, and to the Norian or middle Norian of Tonkin, North Vietnam.
This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022).
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adj.11871adj.2n.1893- to rub noses
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