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

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

Consequently, the chronology worked out for the geological deposits helped in dating the prehistoric tools found in these deposits. There are certain antiquities and potteries which by themselves have acquired a dating value.

In the disintegration process the Carbon-14 returns to nitrogen emitting a beta particle in the process.

The quantity of the C-14 remaining is measured by counting the beta radiation emitted per minute per gram of material.

This exercise is designed to introduce you to basic techniques used in determining the age of archaeological materials and sites.

There are two general categories of methods for dating in archaeology.

For example, if the cultural contents of the lower deposit are Mauryan in character, appropriately this deposit may be assigned a date between 400-200 B. Similarly, if the cultural equipment of the upper deposit are of the Sunga period, this deposit has to placed between 200-73 B. Quite often, the archaeologist decided the change of stratum on the basis of the feed of the deposit.

In such cases subjective element cannot be ruled out.

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

At that time the radioactive disintegration takes over in an uncompensated manner. only half the C-14 will remain after the half-life period.

It is nearly always association with other phenomena that gives a first clue as to the use, the age and chronological attribution of a potential datum, but age at least may sometimes be inferred from position in a geological deposit or a layer of peat.