Shale and Chalk Definition

Definition of Shale and Chalk

The general Shale and Chalk definition can be stated as: Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles. On the other hand, Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. Along with definition of Shale and Chalk, get to know about Properties of Shale and Chalk. Get to know more information about Shale and Chalk origin and discoverer, etymology and class.

History of Shale and Chalk

The history of Shale and Chalk 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.

Shale and Chalk Origin and Discoverer

Shale and Chalk definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Shale and Chalk. In this section, you will know about Shale and Chalk Origin and Discoverer. Origin of Shale and Chalk are . It is interesting to know the name of Shale and Chalk discoverer. The Discoverer of Shale is Johann Gottlob Lehmann and the discoverer of Chalk is Unknown.

Etymology of Shale and Chalk

Along with Shale and Chalk definition, know more about the etymology of Shale and Chalk. Etymology of Shale and Chalk gives information about origin and formation of a particular rock. Know more about Formation of Shale and Formation of Chalk. The etymology of Shale is From German Schalstein laminated limestone, and Schalgebirge layer of stone in stratified rock. From Old English scealu in its base sense of- thing that divides or separate, while that of Chalk is From German Schalstein laminated limestone, and Schalgebirge layer of stone in stratified rock. From Old English scealu in its base sense of- thing that divides or separate,. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Shale and Chalk belong to Sedimentary Rocks. The sub-class, group and other categories of Shale and Chalk are listed below.

For Shale,

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

For Chalk,

• Sub-class: Durable Rock and Soft Rock
• Group:
• Other Categories: Fine grained rock and Opaque rock