![]() ![]() In rock art science, cosmogenic nuclides may be determined in this way, including carbon-14.Īccretion – an externally added, naturally deposited material on a rock surface, usually consisting of chiefly mineral matter.Īcheulian – a lithic tradition of the Lower Palaeolithic, characterised especially by ‘handaxes’, and found widely in the Old World, from southern Africa to India named after the site of Saint-Acheul, Somme valley, France.Īdze – a small stone tool, usually made from a flake, steeply retouched, mounted on a handle and used in wood working.Īeolian – pertaining to, caused by, or carried by the wind aeolian erosion can affect rock surfaces.Īhu – a rectangular ceremonial platform on Easter Island/Rapa Nui, where it sometimes supports large anthropomorphous stone statues, and on the Society Islands.Īles (pl. ![]() French equivalent of ‘rockshelter’.Ībsolute age – a numerical age in calendar years, rarely able to be determined in rock art research or archaeology.Ībstract motif – a rock art motif that, to most Western observers, offers no iconic information elements.Īccelerator mass spectrometry – a technique of determining the quantities of specific isotopes or nuclides in a sample, by separating them in a mass spectrometer and counting their individual atoms. Abrade – to wear or scrape away through repeated abrasive movement of a tool.Ībrasion petroglyph – a technological class of rock marking, produced by a process of abrasion removing rock mass.Ībri – a concavity in a rock wall, formed by one or more natural processes, most commonly of erosion. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |