Data was collected using a cart carrying four paired Bartington magnetic sensors. Four sensors mounted 1m horizontally apart and very accurately aligned to nullify the effects of the earth's magnetic field. Readings relate to the difference in localised magnetic anomalies compared with the general magnetic background. Each data point is geographically referenced using an on-board Trimble RTK survey grade GPS system. Readings were taken at 0.125m centres along traverses 1.0m apart. Readings relate to the difference in localised magnetic anomalies compared with the general magnetic background. The magnetometer survey has recorded magnetic responses interpreted as being of archaeological interest. Ditches and trends are visible in the survey, and they could mark the locations of field systems, trackways, enclosures and ring-ditches. However, the spreading of green waste across the site has masked the anomalies and made it difficult to interpret them with confidence. Numerous uncertain anomalies have also been marked; while some of them could have archaeological origins, the majority may have are due to natural or agricultural processes. A zone of magnetic disturbance on the southern periphery of the site has been caused by a former constriction compound.
Thomas Cockcroft (Wed,) studied this question.