Aerial Photography - The various techniques of taking photographs of natural or cultural features from the air, using balloons, airplanes, satellites, and other sources, in order to study the features in their entirety from a top-down (bird's eye) view.
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.
Aristocracy - A governing body of upper class citizens or the system of government in which aristocrats (upper class citizens) have controlling power. Bulbar depression - A depression left on the core (where a flake's bulb of percussion was attached) when a blade or flake was struck off. Ceramics - Objects, often pottery, made of fired or baked clay.
In an aristocracy people are generally born into distinct social classes and there is little or no upward mobility. Chert - A fine-grained sedimentary rock, similar to flint, that is white, pinkish, brown, gray, or blue-gray in color.
Linguists study languages, especially their development and their function within human culture. Back dirt - The excavated, discarded material (sediment, dirt) from a site that has generally been sifted for artifacts and is presumed to be of no further archaeological significance.