Nephelinite and Basaltic Trachyandesite Types and Facts
Types
Peralkaline Nephelinite
Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite
Features
Host Rock for Lead
Has High structural resistance against erosion and climate, Very fine grained rock
Archaeological Significance
Monuments
Used
Not Yet Used
Famous Monuments
Data Not Available
Not Applicable
Sculpture
Used
Not Yet Used
Famous Sculptures
Data Not Available
Not Applicable
Pictographs
Not Used
Used
Petroglyphs
Not Used
Used
Types of Nephelinite and Basaltic Trachyandesite
Some rocks according to their use or texture are classified into different types. Know more about Nephelinite Texture and Basaltic Trachyandesite Texture. Types of Nephelinite are Peralkaline Nephelinite whereas the types of Basaltic Trachyandesite are Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite.During historic times, some rocks depending on their hardness were used to create Pictographs and Petroglyphs. Rocks which are hard were generally not used. Pictographs are paintings or drawings that have been placed or created on the surface of rock. Nephelinite was not used to create pictographs whereas Basaltic Trachyandesite is used to create pictographs. Petroglyph is an image which is carved into a rock. These are images created by removing part of a rock surface by incising, picking, carving or abrading, as a form of rock art. Nephelinite was not used to create petroglyphs whereas Basaltic Trachyandesite was used to create petroglyphs.