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Boninite and Borolanite Definition


Borolanite 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   
Borolanite is a variety of Nepheline Syenite and belongs to igneous rocks and contains nepheline-alkali feldspar pseudomorphs which occur as conspicuous white spots in the dark rock matrix   

History
  
  

Origin
Japan   
Scotland   

Discoverer
Unknown   
Unknown   

Etymology
From its occurrence in the Izu-Bonin arc south of Japan   
From Alkalic Igneous complex near Loch Borralan in northwest Scotland   

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 Borolanite

The general Boninite and Borolanite 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, Borolanite is a variety of Nepheline Syenite and belongs to igneous rocks and contains nepheline-alkali feldspar pseudomorphs which occur as conspicuous white spots in the dark rock matrix. Along with definition of Boninite and Borolanite, get to know about Properties of Boninite and Borolanite. Get to know more information about Boninite and Borolanite origin and discoverer, etymology and class.

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History of Boninite and Borolanite

The history of Boninite and Borolanite 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 Borolanite Origin and Discoverer

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

Etymology of Boninite and Borolanite

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

For Boninite,

For Borolanite,

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