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Boninite and Shonkinite Definition


Shonkinite 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   
Shonkinite is a rare, dark-coloured and intrusive igneous rock which contains augite and orthoclase feldspar as its primary constituents   

History
  
  

Origin
Japan   
USA   

Discoverer
Unknown   
Unknown   

Etymology
From its occurrence in the Izu-Bonin arc south of Japan   
From the name of Shonkin Sag ranges in the Highwood Mountains of north-central Montana, US   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Volcanic   
Not Applicable   

Other Categories
Fine Grained Rock, Opaque Rock   
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock   

Texture >>
<< Summary

Definition of Boninite and Shonkinite

The general Boninite and Shonkinite 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, Shonkinite is a rare, dark-coloured and intrusive igneous rock which contains augite and orthoclase feldspar as its primary constituents. Along with definition of Boninite and Shonkinite, get to know about Properties of Boninite and Shonkinite. Get to know more information about Boninite and Shonkinite origin and discoverer, etymology and class.

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History of Boninite and Shonkinite

The history of Boninite and Shonkinite 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 Shonkinite Origin and Discoverer

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

Etymology of Boninite and Shonkinite

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

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For Shonkinite,

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