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basal depositshumus
Analysis can be of colour and texture differences. These differences indicate differences in formation processes. Formation processes may be cultural (c- transforms) or natural (n-transforms). A c-transform is defined as the deliberate or accidental activities of humans. It is important, in analysis, to determine the possible formation process. This profile provides us with evidence of both n-transforms, such as the animal hole on the left of the image, as well as c-transforms, such as the floor features that run horizontally from the left.
Stratification is the layers of cultural or natural debris visible in the side of any excavation unit. A profile showing a series of layers is a sequence that has accumulated through time. Stratigraphic deposits conform to the law of superposition, meaning that where one layer overlies another, the lower layer was deposited first. This is true only where no disturbance has occured. In circumstances where soil has been excavated and reinterred, the layers may no longer represent sequential deposits over time. Undisturbed stratification can be a useful tool in relative dating.
Take a closer look at some of the features in this stratigraphic section
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