Marl and Andesite Types and Facts

Marl

Andesite

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Types

Features

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

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

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

Present

Icelandite

Generally rough to touch, High silica content, Is one of the oldest rock

Middle of the Earth in Ecuador

Absent

Types of Marl and Andesite

Some rocks according to their use or texture are classified into different types. Know more about Marl Texture and Andesite Texture. The types of Marl and Andesite are .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 and Andesite 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. Marl and Andesite were for creating petroglyphs.