Geol. [Swiss dial.] A series of tertiary strata occurring in the Alps, consisting of slates, marls, and fucoidal sandstones.
[1827. B. Studer, in Leonhard’s Ztschr. f. Mineral., I. 39 (translated). The prevailing slaty alterations are in the country called Flysch, a name which we may suitably extend to the entire formation.]
1853. Lyell, Princ. Geol. (ed. 9), 124. The nummulitic limestone, together with the overlying fucoidal grit and shale, called ‘Flysch,’ in the Alps, belongs to the older tertiary or Eocene group.
1875. Croll, Climate and Time, xviii. 305. In a coarse conglomerate beloning to the ‘flysch’ of Switzerland, an Eocene formation, there are found certain immense blocks.
