b) Absolute These methods are based on calculating the date of artefacts in a more precise way using different attributes of materials.This method includes carbon dating and thermoluminescence.The earliest-known hominids in East Africa are often found in very specific stratigraphic contexts that have implications for their relative dating.Archaeologists use many different techniques to determine the age of a particular artifact, site, or part of a site.In social sciences there are many key concepts and terms that are crucial for students to know and understand.Often it can be hard to determine what the most important social sciences concepts and terms are, and even once you’ve identified them you still need to understand what they mean.The date on a coin is an absolute date, as are AD 1492 or 501 SYNONYMS OR RELATED TERMS: absolute dating; chronometry CATEGORY: technique DEFINITION: Any technique of dating that relies on chronological measurement such as calendars, radiocarbon dates, etc.
Relative dating methods allow one to determine if an object is earlier than, later than, or contemporary with some other object.
SYNONYMS OR RELATED TERMS: chronometric dating; absolute dates; absolute chronology; absolute age determination (antonym: relative dating)CATEGORY: chronology; technique DEFINITION: The determination of age with reference to a specific time scale, such as a fixed calendrical system or in years before present (B.
P., BP), based on measurable physical and chemical qualities or historical associations such as coins and written records.
All dating methods have limitations and can be complicated by turbation, or mixing, of layers by human or natural actions.
Multiple dating methods are usually required before dates are accepted.
Among the most useful chronometric dating techniques are radiocarbon dating, potassium argon dating, and thermoluminescence dating.