Toarcianadj.n.

/təʊˈɑːsɪən/

Etymology: < French Toarcien, < Latin Toarcium, French Thouars, in western France.

Geology.

Applied to a series of strata corresponding in position to the Upper Lias of England, which are extensively developed in Central and Southern France.

ΘΚΠ

the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > secondary or Mesozoic > Jurassic > specific

Purbeck stone1410

Oxfordian1845

Portlandian1845

Callovian1851

Kimmeridgian1851

Bathonian1858

Sinemurian1863

Tithonian1869

Toarcian1885

Kellovian1888

Aalenian1896

Pliensbachian1952

1859 D. Page Handbk. Geol. Terms 49 Upper Lias, Toarcien of d'Orbigny.]

1885 A. Geikie Geol. 802 In Normandy, the Toarcian stage is only about 20 feet thick.

1912 Return Brit. Museum 172 Crinoids from the Oxfordian of Var..from the Toarcian of the Balearic Islands.

1912 Return Brit. Museum 182 Seven Crinoid stem-fragments from the Toarcian rocks of Cabrera, Balearic Is.

This entry has not yet been fully updated (first published 1912; most recently modified version published online June 2018).

单词	toarcian
释义	Toarcianadj.n. /təʊˈɑːsɪən/ Etymology: < French Toarcien, < Latin Toarcium, French Thouars, in western France. Geology. Applied to a series of strata corresponding in position to the Upper Lias of England, which are extensively developed in Central and Southern France. ΘΚΠ the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > secondary or Mesozoic > Jurassic > specific Purbeck stone1410 Oxfordian1845 Portlandian1845 Callovian1851 Kimmeridgian1851 Bathonian1858 Sinemurian1863 Tithonian1869 Toarcian1885 Kellovian1888 Aalenian1896 Pliensbachian1952 1859 D. Page Handbk. Geol. Terms 49 Upper Lias, Toarcien of d'Orbigny.] 1885 A. Geikie Geol. 802 In Normandy, the Toarcian stage is only about 20 feet thick. 1912 Return Brit. Museum 172 Crinoids from the Oxfordian of Var..from the Toarcian of the Balearic Islands. 1912 Return Brit. Museum 182 Seven Crinoid stem-fragments from the Toarcian rocks of Cabrera, Balearic Is. This entry has not yet been fully updated (first published 1912; most recently modified version published online June 2018). < adj.n.1885
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