Pseudotachylite and Tonalite Definition

Definition of Pseudotachylite and Tonalite

The general Pseudotachylite and Tonalite definition can be stated as: Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.. On the other hand, Tonalite is a coarse-grained plutonic rock consisting mainly of sodic plagioclase, quartz, and hornblende or other mafic minerals with phaneritic texture. Along with definition of Pseudotachylite and Tonalite, get to know about Properties of Pseudotachylite and Tonalite. Get to know more information about Pseudotachylite and Tonalite origin and discoverer, etymology and class.

History of Pseudotachylite and Tonalite

The history of Pseudotachylite and Tonalite 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.

Pseudotachylite and Tonalite Origin and Discoverer

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

Etymology of Pseudotachylite and Tonalite

Along with Pseudotachylite and Tonalite definition, know more about the etymology of Pseudotachylite and Tonalite. Etymology of Pseudotachylite and Tonalite gives information about origin and formation of a particular rock. Know more about Formation of Pseudotachylite and Formation of Tonalite. The etymology of Pseudotachylite is From pseudo- +‎ tachylite, a glassy rock generated by frictional heat within faults. while that of Tonalite is From pseudo- +‎ tachylite, a glassy rock generated by frictional heat within faults.. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Pseudotachylite belongs to Metamorphic Rocks while Tonalite belongs to Igneous Rocks. The sub-class, group and other categories of Pseudotachylite and Tonalite are listed below.

For Pseudotachylite,

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

For Tonalite,

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