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AMS - Accelerator Mass Spectrometry is an absolute dating technique that measures the amount of carbon-14 in an organic object and provides a rough indication of its age. Anthropology - The study of human beings, including their behavior, biology, linguistics, and social and cultural variations.
In the United States, anthropology is divided into four sub-disciplines: archaeology, biological/physical anthropology, cultural anthropology, and linguistics.
Aerial Reconnaissance - The technique of searching for sites and features, both cultural and natural, from the air, often using aerial photography or the human eye.Archaeoastronomy - The study of ancient astronomical knowledge and its role in past cultures. - Before Present; used in age determination instead of B. Balks are often left to aid with stratigraphic analysis.Archaeology - The scientific excavation and study of ancient human material remains. Benchmark - For excavation purposes, a permanent point at a known elevation that can be used to measure other elevations during excavation . Biface tools - Stone tools that have been worked on both sides or faces, meaning that flakes have been intentionally (not naturally) chipped off from both sides of the stone.All the sub-disciplines study aspects of past or present humans.Archaeologists generally study the physical and material remains of ancient societies, while cultural anthropologists study living cultures.