Tonalite and Adakite Definition

Definition of Tonalite and Adakite

The general Tonalite and Adakite definition can be stated as: Tonalite is a coarse-grained plutonic rock consisting mainly of sodic plagioclase, quartz, and hornblende or other mafic minerals with phaneritic texture. On the other hand, Adakite is an intermediate to felsic volcanic rock that has geochemical characteristics of magma which is said to be formed by partial melting of altered basalt that is subducted below volcanic arcs. Along with definition of Tonalite and Adakite, get to know about Properties of Tonalite and Adakite. Get to know more information about Tonalite and Adakite origin and discoverer, etymology and class.

History of Tonalite and Adakite

The history of Tonalite and Adakite 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.

Tonalite and Adakite Origin and Discoverer

Tonalite and Adakite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Tonalite and Adakite. In this section, you will know about Tonalite and Adakite Origin and Discoverer. Origin of Tonalite is Tonale, Italy whereas Origin of Adakite is Adak, Aleutian Islands. It is interesting to know the name of Tonalite and Adakite discoverer. The Discoverer of Tonalite is Unknown and the discoverer of Adakite is Defant and Drummond.

Etymology of Tonalite and Adakite

Along with Tonalite and Adakite definition, know more about the etymology of Tonalite and Adakite. Etymology of Tonalite and Adakite gives information about origin and formation of a particular rock. Know more about Formation of Tonalite and Formation of Adakite. The etymology of Tonalite is From Tonale Pass, northern Italy, + -ite1 while that of Adakite is From Tonale Pass, northern Italy, + -ite1. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Tonalite and Adakite belong to Igneous Rocks. The sub-class, group and other categories of Tonalite and Adakite are listed below.

For Tonalite,

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

For Adakite,

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