Chalk and Arkose Definition

Definition of Chalk and Arkose

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

History of Chalk and Arkose

The history of Chalk and Arkose 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.

Chalk and Arkose Origin and Discoverer

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

Etymology of Chalk and Arkose

Along with Chalk and Arkose definition, know more about the etymology of Chalk and Arkose. Etymology of Chalk and Arkose gives information about origin and formation of a particular rock. Know more about Formation of Chalk and Formation of Arkose. The etymology of Chalk is From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone while that of Arkose is From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Chalk and Arkose belong to Sedimentary Rocks. The sub-class, group and other categories of Chalk and Arkose are listed below.

For Chalk,

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

For Arkose,

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