Marl and Gneiss Definition

Definition of Marl and Gneiss

The general Marl and Gneiss definition can be stated as: Marl is an unconsolidated sedimentary rock consisting of clay and lime. On the other hand, Gneiss is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks. Along with definition of Marl and Gneiss, get to know about Properties of Marl and Gneiss. Get to know more information about Marl and Gneiss origin and discoverer, etymology and class.

History of Marl and Gneiss

The history of Marl and Gneiss 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.

Marl and Gneiss Origin and Discoverer

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

Etymology of Marl and Gneiss

Along with Marl and Gneiss definition, know more about the etymology of Marl and Gneiss. Etymology of Marl and Gneiss gives information about origin and formation of a particular rock. Know more about Formation of Marl and Formation of Gneiss. The etymology of Marl is From Old French marle, from Late Latin marglia while that of Gneiss is From Old French marle, from Late Latin marglia. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Marl belongs to Sedimentary Rocks while Gneiss belongs to Metamorphic Rocks. The sub-class, group and other categories of Marl and Gneiss are listed below.

For Marl,

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

For Gneiss,

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