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Rhyodacite and Trondhjemite Definition


Trondhjemite and Rhyodacite Definition


Definition

Definition
Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite   
Trondhjemite is a leucocratic (light-colored) intrusive igneous rock. It is a variety of tonalite in which the plagioclase is mostly in the form of oligoclase. Trondhjemites are sometimes known as plagiogranites.   

History
  
  

Origin
USA   
Tonale, Italy   

Discoverer
Unknown   
Unknown   

Etymology
Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite   
Not Available   

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, Opaque Rock   
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock   

Texture >>
<< Summary

Definition of Rhyodacite and Trondhjemite

The general Rhyodacite and Trondhjemite definition can be stated as: Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite. On the other hand, Trondhjemite is a leucocratic (light-colored) intrusive igneous rock. It is a variety of tonalite in which the plagioclase is mostly in the form of oligoclase. Trondhjemites are sometimes known as plagiogranites.. Along with definition of Rhyodacite and Trondhjemite, get to know about Properties of Rhyodacite and Trondhjemite. Get to know more information about Rhyodacite and Trondhjemite origin and discoverer, etymology and class.

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History of Rhyodacite and Trondhjemite

The history of Rhyodacite and Trondhjemite 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 Trondhjemite Origin and Discoverer

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

Etymology of Rhyodacite and Trondhjemite

Along with Rhyodacite and Trondhjemite definition, know more about the etymology of Rhyodacite and Trondhjemite. Etymology of Rhyodacite and Trondhjemite gives information about origin and formation of a particular rock. Know more about Formation of Rhyodacite and Formation of Trondhjemite. 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 Trondhjemite 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 Trondhjemite belong to Igneous Rocks. The sub-class, group and other categories of Rhyodacite and Trondhjemite are listed below.

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