[Fr. [ad. L. calcārius); ‘calcareous,’ sb. in Geology ‘calcareous stone, limestone.’] In calcaire grossier and calcaire silicieux (lit. coarse and siliceous limestone) the French names of two Middle Eocene strata of the Paris basin, used by geologists generally.
1833. Lyell, Princ. Geol., III. 64. The yellowish white building-stone of Paris, well known by the name of Calcaire grossier. Ibid. (1838), Elem. Geol. (1865), 300. The calcaire siliceux and the calcaire grossier occupy distinct parts of the Paris basin.
1873. Dawson, Earth & Man, x. 247.
1874. Dawkins, Cave Hunt., ii. 26. The same may also be said of the calcaire grossier of the basin of Paris.
