Geochemical surveys analyse soil samples collected from archaeological sites for subtle physical and chemical variations. This helps determine the possible function of a feature from individual soil samples by identifying important diagnostic indicators which are not often appreciable to the naked eye. Geochemical analysis can be used as both a prospection tool and to further our understanding of excavated archaeological sites.
This allows us to detect industrial and metallurgical activity, cooking sites, refuse dumping, cess-pits and animal husbandry. Geochemical soil samples can be collected by Earthsound technicians or by archaeological site staff. Each sample needs to be collected using tried and tested methodologies – we can advise you on how to best achieve this and which technique(s) is/are appropriate to answer your project requirements.
We can carry out the following laboratory analyses:
- Loss on Ignition analysis (organic content)
- Magnetic Susceptibility content
- Particle Size analysis
- Phosphate analysis
- pH analysis
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