Arkose and Shoshonite Definition

Definition of Arkose and Shoshonite

The general Arkose and Shoshonite definition can be stated as: Arkose is a sedimentary rock, specifically a type of sandstone containing at least 25% feldspar. On the other hand, 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. Along with definition of Arkose and Shoshonite, get to know about Properties of Arkose and Shoshonite. Get to know more information about Arkose and Shoshonite origin and discoverer, etymology and class.

History of Arkose and Shoshonite

The history of Arkose and Shoshonite 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.

Arkose and Shoshonite Origin and Discoverer

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

Etymology of Arkose and Shoshonite

Along with Arkose and Shoshonite definition, know more about the etymology of Arkose and Shoshonite. Etymology of Arkose and Shoshonite gives information about origin and formation of a particular rock. Know more about Formation of Arkose and Formation of Shoshonite. The etymology of Arkose is From Auvergne region of France used by a French geologist Alexandre Brongniart in 1826 who applied this term to some feldspathic sandstones while that of Shoshonite is From Auvergne region of France used by a French geologist Alexandre Brongniart in 1826 who applied this term to some feldspathic sandstones. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Arkose belongs to Sedimentary Rocks while Shoshonite belongs to Igneous Rocks. The sub-class, group and other categories of Arkose and Shoshonite are listed below.

For Arkose,

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

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