Frasnianadj.
/ˈfraznɪən/ Geology.
Name of the lower of the two stages constituting the Upper Devonian in Europe; of or pertaining to this stage or the geological period during which it was deposited. Also absol.
ΘΚΠ
the world > the earth > structure of the earth > age or period > [adjective] > primary or Palaeozoic > Devonian > specific period
Coblenzian1853
Famennian1882
Frasnian1882
Givetian1882
Siegenian1922
the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > primary or Palaeozoic > Devonian > specific
Helderberg1840
Coblenzian1853
Rhenan1853
Vergent1858
hercynian1880
Famennian1882
Frasnian1882
Givetian1882
Helderbergian1906
Siegenian1922
1882 A. Geikie Text-bk. Geol. 701 In the Belgian and Eifelian tracts they have been subdivided as under:..Fammenien..Frasnien.
1894 Geol. Mag. Oct. 474 The Frasnien series in the North of France and Belgium.
1963 D. W. Humphries & E. E. Humphries tr. H. Termier & G. Termier Erosion & Sedimentation xiii. 288 The Frasnian reefs on the edge of the Dinant basin.
1963 D. W. Humphries & E. E. Humphries tr. H. Termier & G. Termier Erosion & Sedimentation xiii. 289 The bioherms of the Frasnian form a subsidising series up to 1,300 feet thick.
This entry has not yet been fully updated (first published 1933; most recently modified version published online December 2020).
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adj.1882