noun
EXAMPLES FROM CORPUS
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Higher slopes reveal widening seams of calcareous marl , sand and thin seams of marl, sandy-lignites and clayey-lignites.
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In addition, on some manors, the liberal application of marl made possible an extension of the area under wheat.
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The projecting porch with its embattled parapet is rendered with local marl and is a late sixteenth-century addition.