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Adakite and Nephelinite Definition


Nephelinite and Adakite Definition


Definition

Definition
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   
Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).   

History
  
  

Origin
Adak, Aleutian Islands   
Brazil   

Discoverer
Defant and Drummond   
Unknown   

Etymology
From Adak, Aleutian Islands   
from French néphéline, from Greek nephelē   

Class
Igneous Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Medium Hardness Rock   
Durable Rock, Hard Rock   

Family
  
  

Group
Volcanic   
Plutonic   

Other Categories
Fine Grained Rock, Medium Grained Rock, Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture >>
<< Summary

Definition of Adakite and Nephelinite

The general Adakite and Nephelinite definition can be stated as: 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. On the other hand, Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).. Along with definition of Adakite and Nephelinite, get to know about Properties of Adakite and Nephelinite. Get to know more information about Adakite and Nephelinite origin and discoverer, etymology and class.

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History of Adakite and Nephelinite

The history of Adakite and Nephelinite 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.

Adakite and Nephelinite Origin and Discoverer

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

Etymology of Adakite and Nephelinite

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

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