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Trondhjemite
Trondhjemite

Skarn
Skarn



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Trondhjemite
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Trondhjemite and Skarn 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.
Skarns are formed during regional or contact metamorphism and from a variety of metasomatic processes involving fluids of magmatic, metamorphic, and/or marine origin
1.2 History
1.2.1 Origin
Tonale, Italy
USA, Australia
1.2.2 Discoverer
Unknown
Tornebohm
1.3 Etymology
Not Available
From an old Swedish mining term originally used to describe a type of silicate gangue or waste rock.
1.4 Class
Igneous Rocks
Metamorphic Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Plutonic
Not Applicable
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock

Definition of Trondhjemite and Skarn

The general Trondhjemite and Skarn 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, Skarns are formed during regional or contact metamorphism and from a variety of metasomatic processes involving fluids of magmatic, metamorphic, and/or marine origin. Along with definition of Trondhjemite and Skarn, get to know about Properties of Trondhjemite and Skarn. Get to know more information about Trondhjemite and Skarn origin and discoverer, etymology and class.

History of Trondhjemite and Skarn

The history of Trondhjemite and Skarn 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 Skarn Origin and Discoverer

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

Etymology of Trondhjemite and Skarn

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

  • Sub-class: Durable Rock and Hard Rock
  • Group: Not applicable
  • Other Categories: Fine grained rock and Opaque rock