Fluvial deposits can provide excellent archives of early hominin activity but may be complex to interpret, especially without extensive geochronology.The Stone Age site of Kalambo Falls, northern Zambia, has yielded a rich artefact record from dominantly fluvial deposits, but its significance has been restricted by uncertainties over site formation processes and a limited chronology.
The investigations of the site are very important for developing a better understanding of the colonization of this region by humans, the transmission of technologies and the processes of economic and social change the local societies underwent.
Archaeologists concentrate their studies on past societies and changes in those societies over extremely long periods of time.
With its focus on the ancient past, archaeology somewhat resembles paleontologythe study of fossils of long-extinct animals, such as dinosaurs.
Because many items disintegrate over time, archaeologists get an incomplete view of the past that they must fill in with other kinds of information and educated reasoning.
On rare occasions, however, delicate objects have been preserved.