Marl and Trondhjemite Definition

Definition of Marl and Trondhjemite

The general Marl and Trondhjemite definition can be stated as: Marl is an unconsolidated sedimentary rock consisting of clay and lime. On the other hand, Trondhjemite is a leucocratic (light-colored) intrusive igneous rock. It is a variety of tonalite in which the plagioclase is mostly in the form of oligoclase. Trondhjemites are sometimes known as plagiogranites.. Along with definition of Marl and Trondhjemite, get to know about Properties of Marl and Trondhjemite. Get to know more information about Marl and Trondhjemite origin and discoverer, etymology and class.

History of Marl and Trondhjemite

The history of Marl and Trondhjemite 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 Trondhjemite Origin and Discoverer

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

Etymology of Marl and Trondhjemite

Along with Marl and Trondhjemite definition, know more about the etymology of Marl and Trondhjemite. Etymology of Marl and Trondhjemite gives information about origin and formation of a particular rock. Know more about Formation of Marl and Formation of Trondhjemite. The etymology of Marl is From Old French marle, from Late Latin marglia while that of Trondhjemite 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 Trondhjemite belongs to Igneous Rocks. The sub-class, group and other categories of Marl and Trondhjemite are listed below.

For Marl,

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

For Trondhjemite,

• Sub-class: Durable Rock and Hard Rock
• Group: Plutonic
• Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock