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.

Napal [1] atau nampal (bahasa Inggris: marl) adalah kalsium karbonat atau kapur kaya lumpur atau batu lumpur yang mengandung sejumlah peubah tanah liat dan aragonit.

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).

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 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.

May 6, 2014 · Marl atau batu napal berwarna abu-abu muda berbutir sangat halus hingga menegah dan memiliki retakan subconchoidal. Batu napal cenderung lebih mudah pecah daripada serpih. Sehingga dapat diasumsikan bahwa kekompakan napal masih termasuk dalam golongan agak kompak.

Marl refers to a limnic material, primarily composed of calcium carbonate (CaCO3) that is deposited in water by algae precipitation. It is formed when land is flooded for several months followed by a dry period, and is characterized by a low organic matter content and a white color.

Feb 22, 2013 · Umur Trias Akhir, litologi didominasi oleh kalsilutit (berlapis) dengan nodul rijang di beberapa tempat, kalkarenit, batu lanau dan lapisan tipis marl teralterasi. Umumnya berwarna muda keabu-abuan.