Formation of Anthracite and Basanite

Anthracite

Basanite

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1 Formation

1.1 Formation

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.

Basanite is a fine-grained, hard rock that forms when bits of lava shoot out of volcanoes.

1.2 Composition

1.2.1 Mineral Content

Calcite, Clay, Clay Minerals

Augite, Feldspar, Ilmenite, Olivine, Plagioclase

1.2.2 Compound Content

Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur

Potassium Oxide, Sodium Oxide, Silicon Dioxide

1.3 Transformation

1.3.1 Metamorphism

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50% Metamorphic Rocks Rocks have it !

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97% Igneous Rocks Rocks have it !

1.3.2 Types of Metamorphism

Burial Metamorphism, Contact Metamorphism, Regional Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism

1.3.3 Weathering

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65% Metamorphic Rocks Rocks have it !

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99% Igneous Rocks Rocks have it !

1.3.4 Types of Weathering

Not Applicable

Chemical Weathering, Mechanical Weathering

1.3.5 Erosion

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77% Metamorphic Rocks Rocks have it !

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92% Igneous Rocks Rocks have it !

1.3.6 Types of Erosion

Not Applicable

Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion

Anthracite and Basanite Formation

Formation of rocks is a long process and hence, Anthracite and Basanite formation sounds very interesting. According to the formation, all rocks are divided into :Igneous Rocks, Fossil 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 Anthracite and Basanite , composition of Anthracite and Basanite and their transformation.