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Hornfels and Chalk Definition


Chalk and Hornfels Definition


Definition

Definition
Hornfels is a metamorphic rock formed by the contact between mudstone or other clay rich rock, and a hot igneous body, and represents a heat altered equivalent of the original rock   
Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers   

History
  
  

Origin
New Zealand   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From German which means hornstone   
From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone   

Class
Metamorphic Rocks   
Sedimentary Rocks   

Sub-Class
Durable Rock, Soft Rock   
Durable Rock, Soft Rock   

Family
  
  

Group
Not Applicable   
Not Applicable   

Other Categories
Fine Grained Rock, Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture >>
<< Summary

Definition of Hornfels and Chalk

The general Hornfels and Chalk definition can be stated as: Hornfels is a metamorphic rock formed by the contact between mudstone or other clay rich rock, and a hot igneous body, and represents a heat altered equivalent of the original rock. On the other hand, Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. Along with definition of Hornfels and Chalk, get to know about Properties of Hornfels and Chalk. Get to know more information about Hornfels and Chalk origin and discoverer, etymology and class.

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History of Hornfels and Chalk

The history of Hornfels 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.

Hornfels and Chalk Origin and Discoverer

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

Etymology of Hornfels and Chalk

Along with Hornfels and Chalk definition, know more about the etymology of Hornfels and Chalk. Etymology of Hornfels and Chalk gives information about origin and formation of a particular rock. Know more about Formation of Hornfels and Formation of Chalk. The etymology of Hornfels is From German which means hornstone while that of Chalk is From German which means hornstone. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Hornfels belongs to Metamorphic Rocks while Chalk belongs to Sedimentary Rocks. The sub-class, group and other categories of Hornfels and Chalk are listed below.

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