Archaeological monument

An alternative situation arises, when an

important building or civic lay out is encountered, of the sort which may

afterwards need to be preserved as an archaeological monument. In this case,

the excavation will merely be extended to cover as much as is required of the

stratum concerned, and if a strati graphical sounding to a greater depth is

required, it will be made elsewhere.

However, to return to the creation and

development of mounds themselves, it would be a mistake to think that the

process is always as simple and straightforward as that already described. A

wide variety of circumstances may serve to disrupt their symmetry and

complicate their stratification.

For instance, the diminishing living space

at the summit or a sudden increase in the settlement’s population may cause the

focus of occupation to move away from its original center. In order to make

this clear, we may at this point enumerate some of the principal variations of

the theme of anatomical development, which are to be found, particularly in

Mesopotamian mounds.

Orthodox sequence

As a point of departure then, let us take

the orthodox sequence of developments illustrated in the upper part of Fig. 1.

This diagram represents the habitation of a village community with a static

population. The superimposed remains of five principal occupations have

gradually created a small artificial hill: but as the site of the village rose

in level, the building space on the summit became more and more restricted by

the sloping sides of the mound.

It may well have been for this reason that

the place was eventually abandoned. In any case, after the inhabitants of the

fifth settlement had departed, the ruins of their houses were molded by the

weather to form the peak of a symmetrical tumulus. Vegetation started to grow

upon it, and soon all traces of occupation had disappeared beneath a shallow

mantle of humus soil.

The second and third diagrams in Fig. I

both illustrate cases where the focus of occupation has shifted. The former

represents a phenomenon, which we shall later have an opportunity of studying

in detail at a particular site tell Hassuna in northern Iraq, which will

provide a perfect example.

I in the diagram, after five principal

periods of occupation, a small mound has been formed in a maimed exactly

similar to that in the previous instance. However, from this point onwards,

occupation has continued, not on the summit of the mound, since that had become

inadequate, but terraced into its sloping flank and spreading over an extended

area of new ground beneath.