- Created by: ktommo
- Created on: 21-05-17 14:36
- Urban Archaeology
- It is usually the clearance of a site for development that provides archaeologists opportunities.
- The area involved is often tightly constrained by other buildings and therefore only parts of buried sites are available for study.
- There has been an increase in the number of urban excavations with much focus on sampling via evaluations and test pits.
- Planning permission now places an emphasis on avoiding damage to the stratigraphy and checking the depth of deposits
- The depth of stratification is usually far greater than on rural sites because of frequent reuse of the same site over time.
- It is very difficult to predict the range of features that will be encountered and how long it will take to excavate them.
- Deep excavation also presents additional safety hazards.
- Example; Number 1 Poultry in London in the 1990s. The evaluation consisted of a DTS and four shafts between 3m and 5m deep to reach the natural geology.
- Survey methods like aerial photography and some geophysical methods like magnetometry are ineffective or inappropriate on urban sites.
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