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Formation of Gabbro and Flint


Formation of Flint and Gabbro


Formation

Formation
Gabbro, a mafic rock, forms due to cooling and crystallization of magma underneath Earth's surface.   
Flint is formed by the decomposition and compaction of various organisms such as sponges and diatoms under the water.   

Composition
  
  

Mineral Content
Augite, Olivine, Plagioclase, Pyroxene   
Silicon   

Compound Content
Aluminium Oxide, CaO, Chromium(III) Oxide, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Sulfur Trioxide   
Silicon Dioxide   

Transformation
  
  

Metamorphism
Yes   
No   

Types of Metamorphism
Impact Metamorphism   
Not Applicable   

Weathering
Yes   
No   

Types of Weathering
Chemical Weathering   
Not Applicable   

Erosion
Yes   
Yes   

Types of Erosion
Coastal Erosion   
Chemical Erosion, Coastal Erosion, Water Erosion   

Properties >>
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Gabbro and Flint Formation

Formation of rocks is a long process and hence, Gabbro and Flint 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 Gabbro and Flint, composition of Gabbro and Flint and their transformation.

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