Chronometric dating in archaeology schwarcz
Stratigraphic dating remains very reliable when it comes to dating objects or events in undisturbed stratigraphic levels.
For example, the oldest human remains known to date in Canada, found at Gore Creek, have been dated using soil stratification.
However, this method is sometimes limited because the reoccupation of an area may require excavation to establish the foundation of a building, for instance, that goes through older layers.
In this case, even if the foundation of the building is found in the same stratigraphic level as the previous occupation, the two events are not contemporary.
For those researchers working in the field of human history, the chronology of events remains a major element of reflection.
It relies on a natural phenomenon that is the foundation of life on earth.On the other hand, absolute dating includes all methods that provide figures about the real estimated age of archaeological objects or occupations.These methods usually analyze physicochemical transformation phenomena whose rate are known or can be estimated relatively well.Dendrochronology Dendrochronology is a method that studies the rings of tree trunks to define characteristic sequences by analyzing the morphology of growth rings for a given species.This method is based on the principle that the variation in tree growth from one year to another is influenced by the degree of precipitation, sunshine, temperature, soil type and all ambient conditions and that, consequently, reference patterns can be distinguished.
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Subsequently, the calibration of that date provides a time interval where the event or object being dated can be situated (eg, 1275-1425 AD).