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Adakite and Variolite Definition


Variolite 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   
Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance   

History
  
  

Origin
Adak, Aleutian Islands   
France   

Discoverer
Defant and Drummond   
Unknown   

Etymology
From Adak, Aleutian Islands   
From Latin varius, speckled, variegated   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Volcanic   
Volcanic   

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

Texture >>
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Definition of Adakite and Variolite

The general Adakite and Variolite 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, Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance. Along with definition of Adakite and Variolite, get to know about Properties of Adakite and Variolite. Get to know more information about Adakite and Variolite origin and discoverer, etymology and class.

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History of Adakite and Variolite

The history of Adakite and Variolite 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 Variolite Origin and Discoverer

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

Etymology of Adakite and Variolite

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

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