Spheroidal carbonaceous particles

Environmental Archaeology, A Guide to the Theory and Practice of Methods, from Sampling and Recovery to Post-excavation (second edition), published by English Heritage (now Historic England) in 2011, defines spheroidal carbonaceous particles (SCPs) as: ‘roughly spherical, >5µm, soot particles produced from the incomplete combustion of fossil fuels Used as an indicator of industrialisation; SCPs can also be used as a proxy dating tool.’

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