Arkose and Shale Definition

Definition of Arkose and Shale

The general Arkose and Shale definition can be stated as: Arkose is a sedimentary rock, specifically a type of sandstone containing at least 25% feldspar. On the other hand, Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles. Along with definition of Arkose and Shale, get to know about Properties of Arkose and Shale. Get to know more information about Arkose and Shale origin and discoverer, etymology and class.

History of Arkose and Shale

The history of Arkose and Shale 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 Shale Origin and Discoverer

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

Etymology of Arkose and Shale

Along with Arkose and Shale definition, know more about the etymology of Arkose and Shale. Etymology of Arkose and Shale gives information about origin and formation of a particular rock. Know more about Formation of Arkose and Formation of Shale. 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 Shale 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 and Shale belong to Sedimentary Rocks. The sub-class, group and other categories of Arkose and Shale are listed below.

For Arkose,

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

For Shale,

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