Home
Compare Rocks


Boninite and Ijolite Definition


Ijolite 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   
Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite   

History
  
  

Origin
Japan   
Finland, Europe   

Discoverer
Unknown   
Unknown   

Etymology
From its occurrence in the Izu-Bonin arc south of Japan   
From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone   

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   
Coarse Grained Rock, Opaque Rock   

Texture >>
<< Summary

Definition of Boninite and Ijolite

The general Boninite and Ijolite 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, Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite. Along with definition of Boninite and Ijolite, get to know about Properties of Boninite and Ijolite. Get to know more information about Boninite and Ijolite origin and discoverer, etymology and class.

Compare Igneous Rocks

History of Boninite and Ijolite

The history of Boninite and Ijolite 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 Ijolite Origin and Discoverer

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

Etymology of Boninite and Ijolite

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

For Boninite,

For Ijolite,

Igneous Rocks

Igneous Rocks

» More Igneous Rocks

Compare Igneous Rocks

» More Compare Igneous Rocks