POTENTIAL MAGNETIC SUSCEPTIBILITY AND FRACTIONAL CONVERSION STUDIES OF ARCHAEOLOGICAL SOILS AND SEDIMENTS
Potential magnetic susceptibility (MAX) and, hence, fractional conversion (CONV) are shown to be critical in interpreting low-frequency mass-specific magnetic susceptibility (LF) data. Results presented from 29 sites in the UK and one in Hungary encompass six types of investigation: Quaternary sedimentary stratigraphies, archaeological contexts, surveys of old ground surfaces, topsoil surveys of lithic scatter sites, topsoil prospection surveys and ‘natural’ topsoils. The findings highlight the wide range of MAX values that may be encountered; identify factors affecting MAX; demonstrate that CONV provides a measure of enhancement resulting from burning; and identify environments in which LF analysis is likely to be problematic.
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