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.

Apr 23, 2023 · Marl or the other name Marlstone is a calcium carbonate non-clastic sedimentary rock. It has containt variable of clays and silt. The dominant carbonate mineral in the most of the marls calcite, aragonite, dolomite and siderite.

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. Calcareous marls grade into clays, by diminution in the amount of lime, and into clayey limestones.

Marl is usually pale grey or white; it can be formed under marine or more commonly freshwater conditions. A calcium-carbonate rich mud containing variable amounts of clays and silt. This may be defined either as calcite-mud or lime-rich silicate-mud depending on the proportion of carbonate to clay.

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).

Marlstone is usually pale grey or white; it has a blocky subconchoidal fracture, and is less fissile than shale. It can be formed under marine or more commonly freshwater conditions.

Jan 1, 2024 · Marl is a sedimentary rock that forms when calcium carbonate precipitates in a clay-rich water environment. This process can occur in both marine and freshwater environments.

Marl is a sediment or sedimentary rock that is a mixture of clay and calcite (CaCO3). Arkansas marls may also contain glauconite, sand, and marine shell deposits. Marl is used in the manufacture of cement and for agricultural purposes.

Marl, also known as marlstone, is a lime-rich mudstone with varying amounts of clays and silt. Calcite is the most common carbonate mineral in marl, but other carbonate minerals such as dolomite, aragonite, and siderite may also be present.

Marl forms when very fine-grained clay particles are deposited in water which settles at the bottom of water bodies and are compacted by overlying sediment; the water squeezes out and hence forming Marl rock.