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Hornfels
Hornfels

Norite
Norite



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Hornfels
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Norite

Formation of Hornfels and Norite

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1 Formation
1.1 Formation
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Hornfels is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.
Norite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.
1.2 Composition
1.2.1 Mineral Content
Andalusite
Augite, Olivine, Plagioclase, Pyroxene
1.2.2 Compound Content
Fe, Mg
Aluminium Oxide, CaO, Chromium(III) Oxide, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Sulfur Trioxide
1.3 Transformation
1.3.1 Metamorphism
1.3.2 Types of Metamorphism
Not Applicable
Cataclastic Metamorphism, Impact Metamorphism
1.3.3 Weathering
1.3.4 Types of Weathering
Biological Weathering
Biological Weathering
1.3.5 Erosion
1.3.6 Types of Erosion
Chemical Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
Chemical Erosion, Coastal Erosion

Hornfels and Norite Formation

Formation of rocks is a long process and hence, Hornfels and Norite 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 Hornfels and Norite, composition of Hornfels and Norite and their transformation.