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Boninite and Nepheline Syenite Definition


Nepheline Syenite 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   
Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz   

History
  
  

Origin
Japan   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From its occurrence in the Izu-Bonin arc south of Japan   
From origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China   

Class
Igneous Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Hard Rock   
Durable Rock, Medium Hardness Rock   

Family
  
  

Group
Volcanic   
Plutonic   

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

Texture >>
<< Summary

Definition of Boninite and Nepheline Syenite

The general Boninite and Nepheline Syenite 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, Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz. Along with definition of Boninite and Nepheline Syenite, get to know about Properties of Boninite and Nepheline Syenite. Get to know more information about Boninite and Nepheline Syenite origin and discoverer, etymology and class.

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History of Boninite and Nepheline Syenite

The history of Boninite and Nepheline Syenite 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 Nepheline Syenite Origin and Discoverer

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

Etymology of Boninite and Nepheline Syenite

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

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For Nepheline Syenite,

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