Marl is an earthy material rich in carbonate minerals, clays, and silt. When hardened into rock, this becomes marlstone. It is formed in marine or freshwater environments, often through the activities of algae.

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Apr 23, 2023 · If the new rock contains predominantly clay and calcium carbonate, it is called marl. The most common use for marl is as a fertilizer for soils that are deficient in calcium carbonate (lime).

Marl, old term used to refer to an earthy mixture of fine-grained minerals. The term was applied to a great variety of sediments and rocks with a considerable range of composition.

May 10, 2024 · Clay is a fine-grained natural soil material that retains water well, while marl is a sedimentary mixture of clay, silt, and calcium carbonate.

Marls are sedimentary rocks with mixed composition, consisting in part of carbonate sediment (carbonate ooze) and in part of fine-grained siliciclastic sediment (clay and silt).

Mar 2, 2024 · Marl, also known as marlstone, is a calcium carbonate or lime-rich mud or mudstone which contains variable amounts of clays and silt. The dominant carbonate mineral in most marls is calcite, but other carbonate minerals such as …