updating palm desktop - Historical methods of dating data

Antiquities and potteries of Roman origin were found in association with the finds of Indian origin.

With the aid of these dated imports it was possible to date the associated Indian objects to the first two centuries A. Similarly NBP and PGW has helped in fixing the chronology of numerous sites. Sometimes dates are also obtained with the assistance of astronomy.

The deposit thus occurring forms layers depending on the nature of the material brought in by the people inhabiting the area.

historical methods of dating data-41historical methods of dating data-46

Specimens of organic material which can yield good amount of carbon can be collected for C-14 dating.

For example charcoal, wood, shell, paper, leaves, cloth, animal hair, bone, pollen, tooth, iron, prehistoric soot from the ceiling of the caves practically any material containing some carbon can be subjected Bones are generally affected by ground water carbonates and are therefore least reliable for dating.

The types and forms or shape of these pots and also the antiquities under go evolutionary changes in cource of time, It is further assumed that all living animals derive body material from the plant kingdom, and also exhibit the same proportion of C-14 material.

Therefore as soon as the organism dies no further radiocarbon is added.

In such cases subjective element cannot be ruled out.

But, for a single culture site the method is quite reliable.

This dating method is also known as Archaeological Dating or Historical Chronology. These methods were relied on especially prior to the introduction of scientific methods of dating.

But, even when the scientific methods of absolute dating are available, this method of dating has not lost its importance, as many a time we have to depend solely on relative dating.

Once a type has been classified by the aid of its context further specimen of the same type, even when found in isolation, can be assigned their place in terms of dates.

Association in simplicity can be illustrated by an example, at the port of Arikamedu near Pondicherry.

Even when the absolute dates are available, we have to supplement the information with relative dating.

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