Relative dating gives you the age of an artifact in relation to another object.
– Objects found deeper in the ground are older (law of superposition) – Type dating (Seriation): types of artifacts are arranged chronologically according to style.
Calendar Dating: Absolute dating: Only possible with objects that have dates inscribed on them (ie: coins) Chronometric dating: Measures the time since something has elapsed.
Radiocarbon Dating: This method is based on the radioactive decay of carbon-14 isotope (14C).
Many new techniques are being developed and tested.
During the summer, melting accelerates, melt-water streams flow faster and carry more material.These annual deposits are found in river and lake beds near glaciers, reflecting the fluctuation of the flow of water during periods of freezing and melting and especially useful in measuring recent Pleistocene geological events.Swedish pioneer Baron Gerard de Geer discovered in the late 19th century that these could be counted and correlated or linked over long distances, which gave him a timescale of 12,000 years and fixed the end of the Ice Age at about 10,000 years ago.Other methods include: coin dating, seriation, and amino-acid racemization.The methods have varying applications, accuracy, range, and cost.