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Rhyodacite and Shonkinite Definition


Shonkinite and Rhyodacite Definition


Definition

Definition
Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite   
Shonkinite is a rare, dark-coloured and intrusive igneous rock which contains augite and orthoclase feldspar as its primary constituents   

History
  
  

Origin
USA   
USA   

Discoverer
Unknown   
Unknown   

Etymology
Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite   
From the name of Shonkin Sag ranges in the Highwood Mountains of north-central Montana, US   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Volcanic   
Not Applicable   

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

Texture >>
<< Summary

Definition of Rhyodacite and Shonkinite

The general Rhyodacite and Shonkinite definition can be stated as: Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite. On the other hand, Shonkinite is a rare, dark-coloured and intrusive igneous rock which contains augite and orthoclase feldspar as its primary constituents. Along with definition of Rhyodacite and Shonkinite, get to know about Properties of Rhyodacite and Shonkinite. Get to know more information about Rhyodacite and Shonkinite origin and discoverer, etymology and class.

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History of Rhyodacite and Shonkinite

The history of Rhyodacite and Shonkinite 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.

Rhyodacite and Shonkinite Origin and Discoverer

Rhyodacite and Shonkinite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Rhyodacite and Shonkinite. In this section, you will know about Rhyodacite and Shonkinite Origin and Discoverer. Origin of Rhyodacite and Shonkinite are USA. It is interesting to know the name of Rhyodacite and Shonkinite discoverer. The discoverer of Rhyodacite and Shonkinite are Unknown.

Etymology of Rhyodacite and Shonkinite

Along with Rhyodacite and Shonkinite definition, know more about the etymology of Rhyodacite and Shonkinite. Etymology of Rhyodacite and Shonkinite gives information about origin and formation of a particular rock. Know more about Formation of Rhyodacite and Formation of Shonkinite. The etymology of Rhyodacite is Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite while that of Shonkinite is Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Rhyodacite and Shonkinite belong to Igneous Rocks. The sub-class, group and other categories of Rhyodacite and Shonkinite are listed below.

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