Trondhjemite and Oil shale Definition

Definition of Trondhjemite and Oil shale

The general Trondhjemite and Oil shale definition can be stated as: 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.. On the other hand, Oil Shale is a fine-grained sedimentary rock from which oil is extracted. Along with definition of Trondhjemite and Oil shale, get to know about Properties of Trondhjemite and Oil shale. Get to know more information about Trondhjemite and Oil shale origin and discoverer, etymology and class.

History of Trondhjemite and Oil shale

The history of Trondhjemite and Oil shale 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.

Trondhjemite and Oil shale Origin and Discoverer

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

Etymology of Trondhjemite and Oil shale

Along with Trondhjemite and Oil shale definition, know more about the etymology of Trondhjemite and Oil shale. Etymology of Trondhjemite and Oil shale gives information about origin and formation of a particular rock. Know more about Formation of Trondhjemite and Formation of Oil shale. The etymology of Trondhjemite is not available while that of Oil shale is not available. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Trondhjemite belongs to Igneous Rocks while Oil shale belongs to Sedimentary Rocks. The sub-class, group and other categories of Trondhjemite and Oil shale are listed below.

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

For Oil shale,

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