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Variolite and Boninite Definition


Boninite and Variolite Definition


Definition

Definition
Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance   
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   

History
  
  

Origin
France   
Japan   

Discoverer
Unknown   
Unknown   

Etymology
From Latin varius, speckled, variegated   
From its occurrence in the Izu-Bonin arc south of Japan   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Volcanic   
Volcanic   

Other Categories
Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture >>
<< Summary

Definition of Variolite and Boninite

The general Variolite and Boninite definition can be stated as: Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance. On the other hand, 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. Along with definition of Variolite and Boninite, get to know about Properties of Variolite and Boninite. Get to know more information about Variolite and Boninite origin and discoverer, etymology and class.

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History of Variolite and Boninite

The history of Variolite and Boninite 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.

Variolite and Boninite Origin and Discoverer

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

Etymology of Variolite and Boninite

Along with Variolite and Boninite definition, know more about the etymology of Variolite and Boninite. Etymology of Variolite and Boninite gives information about origin and formation of a particular rock. Know more about Formation of Variolite and Formation of Boninite. The etymology of Variolite is From Latin varius, speckled, variegated while that of Boninite is From Latin varius, speckled, variegated. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Variolite and Boninite belong to Igneous Rocks. The sub-class, group and other categories of Variolite and Boninite are listed below.

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For Boninite,

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