Pricing Change
New pricing for orders of material from this site will come into place shortly. Charges for supply of digital images, digitisation on demand, prints and licensing will be altered.
GSB Survey No. 2008/69. Antonine Wall Phase III: West of Glasgow Bridge
Date 10 November 2008 - 14 November 2008
Event ID 1034073
Category Recording
Type Magnetometry
Permalink http://canmore.org.uk/event/1034073
The study area was surveyed twice with the gradiometer: in the first data set (Area 1) the traverses run perpendicular to the Wall, in the second (Area 2) they are aligned parallel with it. The results show only a marginal change in definition of the Ditch, but a slightly greater impact on the
Rampart, with Area 1 producing the more coherent responses. Anomalies perpendicular to the wall were better defined in Area 2. By processing the Area 2 data it has been possible to remove the visually prevalent Ditch and Rampart anomalies and isolate a few smaller scale non-linear responses. However, assessing the archaeological significance of these responses remains problematic due to the naturally high magnetic background and the usefulness of this approach in identifying postulated towers is unproven.
Responses from modern cultivation visually dominate the resistance data. Sections of Rampart appear as relatively well defined high resistance anomalies while the Ditch has produced only intermittent and somewhat ill defined high resistance bands. It appears that the high ground and relatively good drainage has enhanced the ploughing trend while reducing the moisture contrast between the Ditch fill and the surrounding soil. Overall, however, the resistance survey has added little to the assessment of the site.
C. Stephens
