Boninite and Ijolite Definition

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.

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,

• Sub-class: Durable Rock and Hard Rock
• Group: Volcanic
• Other Categories: Fine grained rock and Opaque rock

For Ijolite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Plutonic
• Other Categories: Coarse grained rock and Opaque rock