Investigation of suspected gulls in the Jurassic limestone strata of the Cotswold Hills, Gloucestershire, England using electrical resistivity tomography
Barron, A.J.M.; Uhlemann, S.; Pook, G.G.; Oxby, L.. 2016 Investigation of suspected gulls in the Jurassic limestone strata of the Cotswold Hills, Gloucestershire, England using electrical resistivity tomography. Geomorphology, 268. 1-13. 10.1016/j.geomorph.2016.05.028
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Abstract/Summary
An electrical resistivity tomography survey has clearly indicated the presence of substantial vertical zones of contrasting material beneath a set of conspicuous linear surface hollows that cut across a spur forming part of the Cotswold Hills escarpment in Gloucestershire. These zones are compared with nearby quarry exposures and are inferred to be gulls – graben-like structures at least 80 m deep filled with collapsed blocks of bedrock with intervening air-filled spaces, lying within areas of relatively undisrupted gently dipping strata, and which under some circumstances would present a significant geohazard. Our results confirm the great potential of this non-invasive and rapid survey technique for investigating such phenomena, and provide an exemplar for comparison with surveys elsewhere, to assist identification of similar features.
Item Type: | Publication - Article |
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Digital Object Identifier (DOI): | 10.1016/j.geomorph.2016.05.028 |
ISSN: | 0169555X |
Additional Keywords: | Cambering, Gull, Electrical resistivity tomography, Cotswold Hills |
NORA Subject Terms: | Earth Sciences |
Date made live: | 14 Oct 2016 10:32 +0 (UTC) |
URI: | https://nora.nerc.ac.uk/id/eprint/514814 |
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