Formation of Migmatite and Anthracite

Migmatite

Anthracite

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Formation

Mineral Content

Compound Content

Metamorphism

Types of Metamorphism

Weathering

Types of Weathering

Erosion

Types of Erosion

Migmatites form by high temperature regional and thermal metamorphism of protolith rocks where rocks melt partially due to high temperature.

Biotite, Chlorite, Feldspar, Garnet, Graphite, Hornblade, Micas, Muscovite or Illite, Quartz, Quartzite, Silica, Zircon

Aluminium Oxide, NaCl, CaO, Carbon Dioxide, Iron(III) Oxide, FeO, Potassium Oxide, Magnesium Carbonate, MgO, MnO, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

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Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism

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Biological Weathering, Chemical Weathering, Mechanical Weathering

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Chemical Erosion, Glacier Erosion, Water Erosion, Wind Erosion

Anthracite forms from the accumulation of plant debris in a swamp environment. When plant debris dies and falls into the swamp, the standing water of the swamp protects it from decay.

Calcite, Clay, Clay Minerals

Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur

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Burial Metamorphism, Contact Metamorphism, Regional Metamorphism

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Migmatite and Anthracite Formation

Formation of rocks is a long process and hence, Migmatite and Anthracite 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 Migmatite and Anthracite, composition of Migmatite and Anthracite and their transformation.