Formation of Marl and Dunite

Marl

Dunite

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Formation

Mineral Content

Compound Content

Metamorphism

Types of Metamorphism

Weathering

Types of Weathering

Erosion

Types of Erosion

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.

Calcite, Clay, Dolomite, Gypsum, Micas, Pyrite, Quartz

Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, Silicon Dioxide

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Biological Weathering, Chemical Weathering

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Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion

Dunite is a plutonic ultramafic igneous rock consisting almost m olivine. It can be formed in two ways.

Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene

Ca, CaO, Fe, Potassium, Silicon Dioxide, Sodium, Titanium Dioxide

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Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

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Biological Weathering, Chemical Weathering, Mechanical Weathering

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Coastal Erosion, Glacier Erosion, Water Erosion

Marl and Dunite Formation

Formation of rocks is a long process and hence, Marl and Dunite formation sounds very interesting. According to the formation, all rocks are divided into :Igneous Rocks, Sedimentary Rocks and Metamorphic Rocks. Igneous rocks form by crystallization of magma or lava. The magma is made up of various components of pre-existing rocks which have been subjected to melting either at subduction zones or within the Earth's mantle. Igneous rocks are generally seen at mid ocean ridges or in intra-plate hotspots. Sedimentary rocks are formed when sediments accumulate gradually. As the sediments are buried they get compacted as more and more material is deposited on top. Eventually the sediments become so dense that they form a rock. Metamorphic rocks are rocks which once existed as igneous or sedimentary rocks but have been subjected to varying degrees of pressure and heat within the Earth's crust. Get to know all about formation of Marl and Dunite, composition of Marl and Dunite and their transformation.