Oil shale and Dacite Types and Facts

Oil shale

Dacite

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1 Types

1.1 Types

Carbonate-rich Shale, Siliceous Shale and Cannel Shale

Footwall Dacite, Hanging wall Dacite, Tuff and Biotite Dacite

1.2 Features

Easily splits into thin plates, Generally rough to touch, Is one of the oldest rock, Very fine grained rock

Host Rock for Lead, Is one of the oldest rock

1.3 Archaeological Significance

1.3.1 Monuments

Not Yet Used

1.3.2 Famous Monuments

Not Applicable

1.3.3 Sculpture

Not Yet Used

1.3.4 Famous Sculptures

Not Applicable

1.3.5 Pictographs

Not Used

Used

1.3.6 Petroglyphs

Not Used

Used

1.3.7 Figurines

Not Yet Used

1.4 Fossils

Present

Absent

Types of Oil shale and Dacite

Some rocks according to their use or texture are classified into different types. Know more about Oil shale Texture and Dacite Texture. Types of Oil shale are Carbonate-rich Shale, Siliceous Shale and Cannel Shale 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. Oil shale was not used to create pictographs whereas Dacite 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 Dacite was used to create petroglyphs.