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 between 0.16 - 0.25 m. A large, ovular anomaly noted in the northeast corner of the Site may indicate an enclosure of possible pre-historic provenance. Furthermore, the possible remains of a rectilinear enclosure are situated within its centre and may represent a different phase of land use within the landscape. Further evidence of possible pre-historic activity is also visible to the south in the form of an additional, ovular enclosure. Although smaller in size, the anomaly is of similar morphology to the larger, suspected feature. Several further, weakly positive, circular and ovular anomalies are also noted in the southern portion of the Site. Their morphologies are indicative of possible ring-ditches and likely Iron-Age to Romano British in provenance. However, these anomalies may be natural in origin, associated with variations in the magnetic susceptibility of the underlying geological deposits. Two, potential former boundary ditches on parallel alignments, are noted in the southwest corner of the Site. Furthermore, both features have incorporated subcircular enclosures within their overall morphology, indicating both an association and an unrecorded area of land division. Two possible pit-like features are also noted in the dataset and may be indicative of areas of mineral extraction of refuse, though variations within the underlying geological deposits or modern agricultural activity cannot be entirely ruled out. The remaining anomalies consist of a diffuse linear anomaly which corresponds to former boundary illustrated on historical Ordnance Survey (OS) maps (1888 - 1915). Areas of geological variation are noted within the Site, as are modern land drains and several underground services. Ferrous disturbances and increased magnetic responses are also visible. Dipolar ferrous 'spikes' are also noted throughout the Site and can attributed to modern and or agricultural waste within the subsoil.
Simpson et al. (Wed,) studied this question.