Oil shale and Gossan Types and Facts
Types
Carbonate-rich Shale, Siliceous Shale and Cannel Shale
Translocated gossan and Leakage gossan
Features
Easily splits into thin plates, Generally rough to touch, Is one of the oldest rock, Very fine grained rock
Clasts are smooth to touch, Easily splits into thin plates
Archaeological Significance
Monuments
Not Yet Used
Not Yet Used
Famous Monuments
Not Applicable
Not Applicable
Sculpture
Not Yet Used
Not Yet Used
Famous Sculptures
Not Applicable
Not Applicable
Pictographs
Not Used
Used
Petroglyphs
Not Used
Used
Figurines
Not Yet Used
Not Yet Used
Types of Oil shale and Gossan
Some rocks according to their use or texture are classified into different types. Know more about Oil shale Texture and Gossan Texture. Types of Oil shale are Carbonate-rich Shale, Siliceous Shale and Cannel Shale whereas the types of Gossan are Translocated gossan and Leakage gossan.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. Oil shale was not used to create pictographs whereas Gossan 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. Oil shale was not used to create petroglyphs whereas Gossan was used to create petroglyphs.