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Pseudotachylite and Borolanite Definition


Borolanite and Pseudotachylite Definition


Definition

Definition
Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.   
Borolanite is a variety of Nepheline Syenite and belongs to igneous rocks and contains nepheline-alkali feldspar pseudomorphs which occur as conspicuous white spots in the dark rock matrix   

History
  
  

Origin
USA   
Scotland   

Discoverer
Unknown   
Unknown   

Etymology
From pseudo- +‎ tachylite, a glassy rock generated by frictional heat within faults.   
From Alkalic Igneous complex near Loch Borralan in northwest Scotland   

Class
Metamorphic Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Hard Rock   
Durable Rock, Medium Hardness Rock   

Family
  
  

Group
Not Applicable   
Plutonic   

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

Texture >>
<< Summary

Definition of Pseudotachylite and Borolanite

The general Pseudotachylite and Borolanite 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, Borolanite is a variety of Nepheline Syenite and belongs to igneous rocks and contains nepheline-alkali feldspar pseudomorphs which occur as conspicuous white spots in the dark rock matrix. Along with definition of Pseudotachylite and Borolanite, get to know about Properties of Pseudotachylite and Borolanite. Get to know more information about Pseudotachylite and Borolanite origin and discoverer, etymology and class.

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History of Pseudotachylite and Borolanite

The history of Pseudotachylite and Borolanite 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 Borolanite Origin and Discoverer

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

Etymology of Pseudotachylite and Borolanite

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

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