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abstract. the phenomenon is thought by many to be the foundation of art as well as an indication of the development of cognitive and abstract ability in the evolution of humankind, as most rock art is thousands of years old, created before the advent of the first major civilizations . while we may not
purpose of the features. rock art can be divided into three distinct categories: petroglyphs : carvings made into stone surfaces, created by rock removal, including scratching, abrading, pecking, carving, drilling, incising and sculpting. locations of choice are rock facets coated with patina, a dark mineral...
https://www.newworldencyclopedia.org/entry/Rock_art