Shoshonite and Trondhjemite Definition

Definition of Shoshonite and Trondhjemite

The general Shoshonite and Trondhjemite definition can be stated as: Shoshonite is a basaltic rock, properly a potassic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored volcanic glass. 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 Shoshonite and Trondhjemite, get to know about Properties of Shoshonite and Trondhjemite. Get to know more information about Shoshonite and Trondhjemite origin and discoverer, etymology and class.

History of Shoshonite and Trondhjemite

The history of Shoshonite 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.

Shoshonite and Trondhjemite Origin and Discoverer

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

Etymology of Shoshonite and Trondhjemite

Along with Shoshonite and Trondhjemite definition, know more about the etymology of Shoshonite and Trondhjemite. Etymology of Shoshonite and Trondhjemite gives information about origin and formation of a particular rock. Know more about Formation of Shoshonite and Formation of Trondhjemite. The etymology of Shoshonite is From the place of origin called Shoshone riverin Wyoming while that of Trondhjemite is From the place of origin called Shoshone riverin Wyoming. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Shoshonite and Trondhjemite belong to Igneous Rocks. The sub-class, group and other categories of Shoshonite and Trondhjemite are listed below.

For Shoshonite,

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

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