Types of archaeological dating
All the sub-disciplines study aspects of past or present humans.
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.
This is a good way to search for patterns or changes in soil color or plant density (possible indicators of buried features) that may not be visible to a person walking on the ground.
Agora - An open-air place of congregation in an ancient Greek city, generally the public square or marketplace, that served as a political, civic, religious, and commercial center.
In the New World the term refers to a period when permanent settlements were becoming more common and human groups were making the transition from hunting-and-gathering to agriculture. Bronze Age - A prehistoric period in the Old World, dating roughly from 3000-1000 B. E, defined by the widespread use of bronze as a material for tools, weapons, and ornaments. The lids were usually modeled to represent animal-headed gods or the heads of important people.
In evolutionary biology, an "archaic" Homo sapien is a hominin (or hominid) who was slightly more primitive than modern humans (Homo sapiens). Bulb of percussion - A small, rounded protrusion on a flake resulting from the blow that separated the flake from its core or another flake. Carbon dating - see Radiocarbon Dating Cardinal Directions - Collective term for the four primary directions: North, South, East, West.
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In some instances, however, running water carries away nutrients from exposed soils and creates areas unsuitable for agriculture.