Relative and chronometric dating

Absolute dating is the process of determining an age on a specified chronology in archaeology and geology.

Some scientists prefer the terms chronometric or calendar dating, as use of the word "absolute" implies an unwarranted certainty of accuracy.

Dating is a technique used in archeology to ascertain the age of artifacts, fossils and other items considered to be valuable by archeologists.

There are many methods employed by these scientists, interested in the old, to get to know the age of items.

Survey: Survey accounts for the initial in-field investigations of a region, and aims to record artifacts, features, and site locations of archeological interest.

An archeological survey is typically accomplished by a crew of people systematically walking transects, or linear, evenly spaced lines, across an area of interest, although aerial inventories are also possible with the use of small planes, helicopters, and even satellite imagery.

It is possible to tell the number of years ago a particular rock or archeological site had been formed.

Relative dating includes methods that rely on the analysis of comparative data or the context (eg, geological, regional, cultural) in which the object one wishes to date is found.

This approach helps to order events chronologically but it does not provide the absolute age of an object expressed in years.

Relative dating includes different techniques, but the most commonly used are soil stratigraphy analysis and typology.

According to the laws of superposition, a strategic layer that is higher has been deposited more recently.

The oldest strata are at the bottom of the sequence.Absolute dating, on the other hand is capable of telling the exact age of an item using carbon dating and many other techniques that were not there in earlier times.

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