Marl is a sedimentary rock composed of calcium carbonate and clay in roughly equal proportions, formed in marine or freshwater environments. It underlies the cliffs of Dover and has been used historically as a soil enhancer and in cement production.
Authors such as Herman Melville and Joseph Addison have referenced marl in their works, though often indirectly—Melville alludes to its role in natural cycles, while Addison links it to metaphorical resilience. The term also appears in literary contexts as names or themes, reflecting its dual presence in geology and cultural narratives. This interplay highlights marl’s significance as both a natural material and a symbolic element in literature.