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Formation of Eclogite and Jadeitite


Formation of Jadeitite and Eclogite


Formation

Formation
Eclogite forms from high-pressure metamorphism of mafic igneous rocks mainly, basalt or gabbro as it plunges into the mantle in a subduction zone.  
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Jadeitite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.  

Composition
  
  

Mineral Content
Amphibole, Coesite, Corundum, Dolomite, Garnet, Kyanite, Lawsonite, Paragonite, Phengite, Pyroxene, Quartz, Rutile, Zoisite  
Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides  

Compound Content
Aluminium Oxide, NaCl, CaO, Carbon Dioxide, Iron(III) Oxide, Magnesium Carbonate, MgO, Sodium Oxide, Potassium, Sodium  
Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur  

Transformation
  
  

Metamorphism
No  
Yes  

Types of Metamorphism
-  
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism  

Weathering
Yes  
No  

Types of Weathering
Mechanical Weathering  
-  

Erosion
Yes  
Yes  

Types of Erosion
Chemical Erosion, Sea Erosion  
Coastal Erosion, Water Erosion, Wind Erosion  

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Eclogite and Jadeitite Formation

Formation of rocks is a long process and hence, Eclogite and Jadeitite 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 Eclogite and Jadeitite, composition of Eclogite and Jadeitite and their transformation.

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