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Boninite and Essexite  Definition


Essexite  and Boninite Definition


Definition

Definition
Boninite is a mafic extrusive rock which is high in magnesium and silica content, formed in fore-arc environments, typically during the early stages of subduction   
Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock   

History
  
  

Origin
Japan   
USA   

Discoverer
Unknown   
Unknown   

Etymology
From its occurrence in the Izu-Bonin arc south of Japan   
From the locality in Essex County, Massachusetts,US   

Class
Igneous Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Hard Rock   
Durable Rock, Hard Rock   

Family
  
  

Group
Volcanic   
Plutonic   

Other Categories
Fine Grained Rock, Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture >>
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Definition of Boninite and Essexite 

The general Boninite and Essexite  definition can be stated as: Boninite is a mafic extrusive rock which is high in magnesium and silica content, formed in fore-arc environments, typically during the early stages of subduction. On the other hand, Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock. Along with definition of Boninite and Essexite , get to know about Properties of Boninite and Essexite . Get to know more information about Boninite and Essexite  origin and discoverer, etymology and class.

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History of Boninite and Essexite 

The history of Boninite and Essexite  gives information about where the rock was found and who was its discoverer. Almost each and every aspect of Earth's history is recorded in rocks be it the volcanoes which were erupted or the plants, animals and organisms which are now extinct, as rocks are present from millions of years.

Boninite and Essexite  Origin and Discoverer

Boninite and Essexite  definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Boninite and Essexite . In this section, you will know about Boninite and Essexite  Origin and Discoverer. Origin of Boninite is Japan whereas Origin of Essexite  is USA. It is interesting to know the name of Boninite and Essexite  discoverer. The discoverer of Boninite and Essexite  are Unknown.

Etymology of Boninite and Essexite 

Along with Boninite and Essexite  definition, know more about the etymology of Boninite and Essexite . Etymology of Boninite and Essexite  gives information about origin and formation of a particular rock. Know more about Formation of Boninite and Formation of Essexite . The etymology of Boninite is From its occurrence in the Izu-Bonin arc south of Japan while that of Essexite  is From its occurrence in the Izu-Bonin arc south of Japan. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Boninite and Essexite  belong to Igneous Rocks. The sub-class, group and other categories of Boninite and Essexite  are listed below.

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For Essexite ,

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