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Trondhjemite
Trondhjemite

Trachyandesite
Trachyandesite



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Trondhjemite and Trachyandesite Definition

1 Definition
1.1 Definition
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.
Trachyandesite is an extrusive igneous rock.
1.2 History
1.2.1 Origin
Tonale, Italy
Indonesia
1.2.2 Discoverer
Unknown
Unknown
1.3 Etymology
Not Available
From French trachyandésite, trachy + andésite andesite, a lava intermediate in composition between trachyte and andesite
1.4 Class
Igneous Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
1.5 Family
1.5.1 Group
Plutonic
Volcanic
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock

Definition of Trondhjemite and Trachyandesite

The general Trondhjemite and Trachyandesite definition can be stated as: 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.. On the other hand, Trachyandesite is an extrusive igneous rock.. Along with definition of Trondhjemite and Trachyandesite, get to know about Properties of Trondhjemite and Trachyandesite. Get to know more information about Trondhjemite and Trachyandesite origin and discoverer, etymology and class.

History of Trondhjemite and Trachyandesite

The history of Trondhjemite and Trachyandesite 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.

Trondhjemite and Trachyandesite Origin and Discoverer

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

Etymology of Trondhjemite and Trachyandesite

Along with Trondhjemite and Trachyandesite definition, know more about the etymology of Trondhjemite and Trachyandesite. Etymology of Trondhjemite and Trachyandesite gives information about origin and formation of a particular rock. Know more about Formation of Trondhjemite and Formation of Trachyandesite. The etymology of Trondhjemite is not available while that of Trachyandesite is not available. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Trondhjemite and Trachyandesite belong to Igneous Rocks. The sub-class, group and other categories of Trondhjemite and Trachyandesite are listed below.

For Trondhjemite,

  • Sub-class: Durable Rock and Hard Rock
  • Group: Plutonic
  • Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock

For Trachyandesite,

  • Sub-class: Durable Rock and Medium Hardness Rock
  • Group: Volcanic
  • Other Categories: Fine grained rock and Opaque rock
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