A temporary grid system was established over the site and marked out using canes. The location of the grid was set out using an RTK GPS system theoretically accurate to some 0.01m and referenced to OS co-ordinates. Hand Held: Data was collected using a Bartington Grad 601-2. The instrument consists of two paired sensors and readings are logged at 0.25m centres along traverses 1.0m apart across 30m grids. The collection of data at 0.25m centres provides an appropriate methodology balancing cost and time with resolution as per Historic England guidelines. Two 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. The magnetometer survey has recorded a magnetic response that has been interpreted as being of possible archaeological interest. A tentative ditch-like anomaly is visible traversing both survey areas and it measures 14m at its widest point, it may be associated with the Prehistoric or Medieval remains that are located within the vicinity of the site, though a natural origin should also be considered. Numerous uncertain linear trends have also been detected, archaeological origins cannot be entirely discounted for the anomalies, they are probably due to a combination of natural and agricultural processes. Ridge and furrow cultivation or former tree lines are visible in Area 2 and the route of a service pipe has been plotted in Area 1. Magnetic disturbance has been detected in both survey areas; in the east of Area 1 it corresponds with a trackway and former pond, the other zones of disturbance are also likely to have modern origins.
Thomas Cockcroft (Mon,) studied this question.
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