Marl and Hornblendite Types and Facts

Marl

Hornblendite

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1 Types

1.1 Types

Clay Marl ,Blue Marl, Red Marl, High Bank Marl, Shell Layer Marl, Under Shell Layer Marl, Sand Marl, Green Marl, Grey Marl and Clayey Marl

Hornblende Gabbro and Hornblende Peridotite

1.2 Features

Generally rough to touch, Is one of the oldest rock, Splintery, Very fine grained rock

Clasts are smooth to touch, Matrix variable, Surfaces are often shiny

1.3 Archaeological Significance

1.3.1 Monuments

Not Yet Used

1.3.2 Famous Monuments

Not Applicable

1.3.3 Sculpture

Used

1.3.4 Famous Sculptures

Data Not Available

1.3.5 Pictographs

Used

Not Used

1.3.6 Petroglyphs

Used

Not Used

1.3.7 Figurines

Used

1.4 Fossils

Present

Absent

Types of Marl and Hornblendite

Some rocks according to their use or texture are classified into different types. Know more about Marl Texture and Hornblendite Texture. Types of Marl are Clay Marl ,Blue Marl, Red Marl, High Bank Marl, Shell Layer Marl, Under Shell Layer Marl, Sand Marl, Green Marl, Grey Marl and Clayey Marl whereas the types of Hornblendite are Hornblende Gabbro and Hornblende Peridotite.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. Marl was used to create pictographs whereas Hornblendite is not 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. Marl was used to create petroglyphs whereas Hornblendite was not used to create petroglyphs.