This geophysical survey was completed using a Sensys FMG650/3 system. Readings were recorded at a resolution of 0.01 nT and data collected with a traverse interval of 1 m and a sample interval of 0.25 m. Data was collected by traversing the survey area in 4 m increments using a quadbike-towed nonmagnetic cart system to achieve the best possible results. The survey produced good results throughout and has identified several anomalies that have been interpreted as being of an uncertain origin. Several, unrecorded boundary ditches of likely medieval to post-medieval origin have been identified aligned broadly parallel to further recorded boundary features illustrated in historical Ordnance Survey (OS) maps (1830's - 1880's) and (1888 - 1915). Anomalies indicating areas of disturbed ground are also noted within Field 6 and correspond to the positions of two former ponds illustrated on historical OS maps of the same provenance. The remaining anomalies are limited to responses caused by modern activity such as agricultural trends, modern land drains as well as numerous ferrous 'spikes' located sporadically throughout the Site and have likely been caused by modern and or agricultural waste within the subsoil.
James R. Howe (Wed,) studied this question.