Page "Excavation (archaeology)" Paragraph 5

Within the practice of excavation, numerous specialized techniques are available for use, and each dig will have its particular features, which will determine the archaeologists ' approach.

Resources and other practical issues do not allow archaeologists to carry out excavations whenever and wherever they choose.

These constraints mean many known sites have been deliberately left unexcavated.

This is with the intention of preserving them for future generations as well as recognising the role they serve in the communities that live near them.

In some cases it is also hoped that improvements in technology will enable them to be re-examined at a later date, with more fruitful results.

Excavation involves the recovery of several types of data from a site, a place where there is evidence for past human activity.

These data include artifacts ( objects made or modified by humans ), features ( modifications to the site itself such as post molds, burials, and hearths ), ecofacts ( evidence for the local environment and resources being used such as snail shells, seeds, and butchered bones ).

and most importantly of all context ( the relationships among the other types of data ).

Ideally, it should be possible from the excavation records to completely reconstruct the site in three-dimensional space.