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Rapakivi Granite and Adakite Definition


Adakite and Rapakivi Granite Definition


Definition

Definition
Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase   
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   

History
  
  

Origin
Finland, Europe   
Adak, Aleutian Islands   

Discoverer
Jakob Sederholm   
Defant and Drummond   

Etymology
From Finnish Rapakivi which stands for crumbly rock   
From Adak, Aleutian Islands   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Volcanic   

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

Texture >>
<< Summary

Definition of Rapakivi Granite and Adakite

The general Rapakivi Granite and Adakite definition can be stated as: Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase. 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 Rapakivi Granite and Adakite, get to know about Properties of Rapakivi Granite and Adakite. Get to know more information about Rapakivi Granite and Adakite origin and discoverer, etymology and class.

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History of Rapakivi Granite and Adakite

The history of Rapakivi Granite 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.

Rapakivi Granite and Adakite Origin and Discoverer

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

Etymology of Rapakivi Granite and Adakite

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

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