Ignimbrite and Dacite Types and Facts
Types
Pyroclastic rock
Footwall Dacite, Hanging wall Dacite, Tuff and Biotite Dacite
Features
Always found as volcanic pipes over deep continental crust
Host Rock for Lead, Is one of the oldest rock
Archaeological Significance
Types of Ignimbrite and Dacite
Some rocks according to their use or texture are classified into different types. Know more about Ignimbrite Texture and Dacite Texture. Types of Ignimbrite are Pyroclastic rock whereas the types of Dacite are Footwall Dacite, Hanging wall Dacite, Tuff and Biotite Dacite.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. Ignimbrite and Dacite were for creating 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. Ignimbrite and Dacite were for creating petroglyphs.