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Trondhjemite
Trondhjemite

Adakite
Adakite



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Trondhjemite and Adakite 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.
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
1.2 History
1.2.1 Origin
Tonale, Italy
Adak, Aleutian Islands
1.2.2 Discoverer
Unknown
Defant and Drummond
1.3 Etymology
Not Available
From Adak, Aleutian Islands
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, Medium Grained Rock, Opaque Rock

Definition of Trondhjemite and Adakite

The general Trondhjemite and Adakite 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, 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 Trondhjemite and Adakite, get to know about Properties of Trondhjemite and Adakite. Get to know more information about Trondhjemite and Adakite origin and discoverer, etymology and class.

History of Trondhjemite and Adakite

The history of Trondhjemite 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.

Trondhjemite and Adakite Origin and Discoverer

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

Etymology of Trondhjemite and Adakite

Along with Trondhjemite and Adakite definition, know more about the etymology of Trondhjemite and Adakite. Etymology of Trondhjemite and Adakite gives information about origin and formation of a particular rock. Know more about Formation of Trondhjemite and Formation of Adakite. The etymology of Trondhjemite is not available while that of Adakite 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 Adakite belong to Igneous Rocks. The sub-class, group and other categories of Trondhjemite and Adakite 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 Adakite,

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