Definition of "marls" [marls]

• Third-person singular simple present indicative form of marl. (verb)

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• "The true marls, that is those in which carbonate of lime abounds, are greatly preferable to clay marls, the latter, indeed, operate chiefly mechanically, by altering the texture of the soil -- the lime they contain being frequently too small to exercise much appreciable effect."
• "The sediments at Site 1202 are deposited from low-grade metamorphic schist and marls, which is found within these mountain ranges on the island of Taiwan."
• "The lime clays or "marls" of class (2), which contain essentially a high percentage of chalk or limestone, are not so widely distributed as the ordinary brick-clays, and in England the natural deposits of these clays have been largely exhausted."