| 释义 |
Danian, a. Geol.|ˈdeɪnɪən|
[ad. F. Danien (A. d'Orbigny Prodrome de Paléont. (1850) II. 290), f. L. Dania Denmark, f. Danus Dane: see -ian.]
Epithet of a stratigraphical stage or series (not represented in Britain) lying below the Montian stage, and held variously to be the highest division of the Cretaceous or the lowest of the Tertiary; of or pertaining to this stage or the period during which it was deposited. Also absol.
1873Q. Jrnl. Geol. Soc. XXIX. 377 Cretaceous Period. Danian or Waipara Formation... This is the Cretaceo-Tertiary formation of Dr. Hector. Ibid. Index, Danian formation of New Zealand. 1882Geikie Text-bk. Geol. 823 The uppermost division, or Danian, of the Continental chalk appears to be absent in England, unless its lower portions are represented by some of the uppermost beds of the Norwich Chalk. 1893P. Lake tr. Kayser's Comp. Geol. 314 In the North of France the succession of the Upper Cretaceous rocks closely resembles that of England; but still higher zones are represented, and these are united under the term Danian. 1925Countries of the World xxx. 3072/1 A beautiful stone resembling marble is secured from phosphatic beds of Danian Age. 1960L. D. Stamp Britain's Struct. (ed. 5) xii. 139 These strata form..transition beds between the Cretaceous and the Tertiary and are sometimes grouped with the one, sometimes with the other, sometimes separated as the Danian and the Montian. 1969Proc. Geol. Soc. Lond. Aug. 152 The rocks commonly accepted as of Danian age should be included in the Cainozoic. 1971Nature 19 Feb. 553/2 Impoverished Danian faunas are..often separated by a bedding plane from Cretaceous faunas of similar sedimentary facies. |