Formation of Mugearite and Shale

Mugearite

Shale

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1 Formation

1.1 Formation

Mugearite forms when lava reaches the Earth's surface near an active volcano. The temperature of lava is between 1100 to 1250° C when it gets to the surface.

Shale forms when very fine-grained clay particles are deposited in water which settle at the bottom of water bodies. They are later compacted hence forming shale.

1.2 Composition

1.2.1 Mineral Content

Olivine, Plagioclase, Pyroxene

Albite, Biotite, Calcite, Chert, Chlorite, Dolomite, Hematite, Micas, Muscovite or Illite, Pyrite, Quartz, Silica, Sulfides

1.2.2 Compound Content

Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

Ca, Fe, Mg, Silicon Dioxide, Sodium

1.3 Transformation

1.3.1 Metamorphism

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97% Igneous Rocks Rocks have it !

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19% Sedimentary Rocks Rocks have it !

1.3.2 Types of Metamorphism

Burial Metamorphism, Impact Metamorphism

Not Applicable

1.3.3 Weathering

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99% Igneous Rocks Rocks have it !

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78% Sedimentary Rocks Rocks have it !

1.3.4 Types of Weathering

Biological Weathering, Chemical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

1.3.5 Erosion

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92% Igneous Rocks Rocks have it !

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86% Sedimentary Rocks Rocks have it !

1.3.6 Types of Erosion

Not Applicable

Chemical Erosion, Coastal Erosion, Glacier Erosion

Mugearite and Shale Formation

Formation of rocks is a long process and hence, Mugearite and Shale 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 Mugearite and Shale, composition of Mugearite and Shale and their transformation.