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Adakite and Essexite  Definition


Essexite  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   
Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock   

History
  
  

Origin
Adak, Aleutian Islands   
USA   

Discoverer
Defant and Drummond   
Unknown   

Etymology
From Adak, Aleutian Islands   
From the locality in Essex County, Massachusetts,US   

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 >>
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Definition of Adakite and Essexite 

The general Adakite and Essexite  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, Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock. Along with definition of Adakite and Essexite , get to know about Properties of Adakite and Essexite . Get to know more information about Adakite and Essexite  origin and discoverer, etymology and class.

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History of Adakite and Essexite 

The history of Adakite and Essexite  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 Essexite  Origin and Discoverer

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

Etymology of Adakite and Essexite 

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

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