Turonianadj.

/tjʊˈrəʊnɪən/

Etymology: = French turonien , < Latin Turonēs : see Turoneis n. and -ian suffix.

Geology.

Denoting a subdivision of the Cretaceous or Chalk period and series of strata, answering to the ‘Lower White Chalk without flints’ of English geologists.

ΚΠ

1850 D. T. Ansted Elem. Course Geol. Index Turonian formation.

1850 D. T. Ansted Elem. Course Geol. §792 These beds are represented in France by the lower members of the ‘Terrain turonien’, which exhibit nearly the same peculiarities as in England, though to a somewhat greater extent.]

1885 A. Geikie Text-bk. Geol. (ed. 2) vi. ii. iii. §2. 820 The Cretaceous system of Europe has been subdivided as follows:—Upper..Danian, Senonian, Turonian, Cenomanian, Gault. Lower..Neocomian.

This entry has not yet been fully updated (first published 1916; most recently modified version published online June 2018).

单词	turonian
释义	Turonianadj. /tjʊˈrəʊnɪən/ Etymology: = French turonien , < Latin Turonēs : see Turoneis n. and -ian suffix. Geology. Denoting a subdivision of the Cretaceous or Chalk period and series of strata, answering to the ‘Lower White Chalk without flints’ of English geologists. ΚΠ 1850 D. T. Ansted Elem. Course Geol. Index Turonian formation. 1850 D. T. Ansted Elem. Course Geol. §792 These beds are represented in France by the lower members of the ‘Terrain turonien’, which exhibit nearly the same peculiarities as in England, though to a somewhat greater extent.] 1885 A. Geikie Text-bk. Geol. (ed. 2) vi. ii. iii. §2. 820 The Cretaceous system of Europe has been subdivided as follows:—Upper..Danian, Senonian, Turonian, Cenomanian, Gault. Lower..Neocomian. This entry has not yet been fully updated (first published 1916; most recently modified version published online June 2018). < adj.1850
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