white lias

British

noun

a type of rock composed of pale-coloured limestones and marls See also Lias

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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The series consists of grey marls, black paper shales containing much pyrites and a celebrated bone bed, the Cotham landscape marble, and the White Lias limestone, yielding Ostrea Liassica and Cardium Rhaeticum.

From Project Gutenberg

Rhaetic beds, the so-called “White Lias,” are exposed in Pinhay Bay.

From Project Gutenberg

These white beds were called by William Smith the White Lias, and they have been shown by Mr. Charles Moore to belong to a formation similar to one in the Rhaetian Alps of Bavaria, to which Mr. Gumbel has applied the name of Rhaetic.

From Project Gutenberg

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