Geophysics

Using RTK corrected drone images, we can make out some of the surface variations as it has hill shaded the elevation plots. The images captured are within 2cm accuracy per photo. read more ...

The survey was undertaken over 5 days; the first day was in October 2019 and the remaining 4 days were in October to December 2021.The survey revealed a clear series of anomalies, particularly in the southern half of the field. The dark anomalies represent higher resistivity ie walls, foundations stonework etc and the lighter anomalies are lower resistivity eg ditches, pits, areas of waterlogging read more ...

The gradiometry survey was undertaken over 4 days in August 2022. The entire field is much more uniform than the resistivity survey, with the most significant anomalies being two ditches. The northern one trends in a north-east/south-west direction and is associated with a structural foundation/floor. The southern ditch is slightly less clearly defined but appears to represent two joining ditches read more ...

The resistivity survey in East Glebe was undertaken during July 2022 over a period of 4 separate days. The survey revealed various anomalies over the site – higher resistance eg walls, floors, foundations and stone built underground structures appear as darker areas and lower resistance, such as pits, ditches and waterlogged areas appear as lighter coloured areas. The site clearly falls into two p read more ...

Lidar Map showing rectangular level platform 14 x 10 meters read more ...

Ancient map of Siston showing the area of interest highlighted in green. Second diagram shows the Lidar image placed onto geological extract. read more ...