Abstract
Single-station transfer functions linking the time variations of the vertical and horizontal components of the magnetic field at stations in northern England and southern Scotland have been compiled into a uniform data set. From hypothetical event analysis we show here that there are two distinct anomalies in the Borders region. One runs south-west to north-east, immediately to the south-east of the Southern Uplands Fault; the second follows the Northumberland Basin, and seems to exist because the conductive sedimentary rocks filling the basin create a link between the Irish and North Seas. If the lapetus suture is marked by a conductivity anomaly, as has been suggested1,2, these results place it beneath the Southern Uplands, unless it is masked by the surface conductor in the Northumberland Basin.
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Banks, R., Beamish, D. & Geake, M. Magnetic variation anomalies in northern England and southern Scotland. Nature 303, 516–518 (1983). https://doi.org/10.1038/303516a0
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DOI: https://doi.org/10.1038/303516a0
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