According to the Dictionary of Anthropology, the word chronology means the science of computing dates or treaties showing arrangement of events with dates.
In other words, Chronology is the arrangement of events, or the materials which represent them, in the order of their occurrence in time.
As the damage sites are permanent, a simple count of their number allows an age to be measured.
The density of track depends on the uranium content as well as the age of the sample (i.e.
Carbon dating discovered in 1955, proved very helpful for establishing absolute dating in various archaeological sites.
The application of varve dating is restricted by several factors.It has been used in Baltic area, North America, South America and Africa.In North America, Ernst Antevs has made several attempts to relate Pleistocene geological formations in the American Southwest to events that produced varves in the northern parts of North America.Third, the varves may form frequently rather than annually depending on the pattern of the melting.However, instead of the limitations, varve analysis can be used indirectly for archaeological dating.The sequence of development of culture or the relationship between events that represent culture can be established only when events can be placed in proper time.Chronology, the study of events in time frame, is hence the central theme of archaeologist, like the geologist who deals with the story of earth history.The proportion of these D-amino acids increases with time.Thus the age of the skeletal materials that are found in archaeological sites can be estimated by determining the amount of change, racemisation that has occurred.Such treatment are used to create etch pits of optical size, each one making a single fission site.The method requires sufficient uranium to produce a track density, which can be counted within reasonable time.