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The geological significance of electrical conductivity anomalies of the Ordovician-Silurian Moffat Shale Group, Northern Ireland

Cooper, Mark; Floyd, James; Barker, Gareth; Ture, Mohammednur; Hodgson, James; McConnell, Brian; Warke, Matthew. 2016 The geological significance of electrical conductivity anomalies of the Ordovician-Silurian Moffat Shale Group, Northern Ireland. In: Young, M.E., (ed.) Unearthed: impacts of the Tellus surveys of the north of Ireland. Dublin, Ireland, Royal Irish Academy, 169-178, 10pp.

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Abstract/Summary

The Tellus airborne geophysical survey revealed sets of narrow, linear, north-east to south-west, mostly parallel electrical conductivity (electromagnetic – EM) anomalies in the Longford–Down area. Subsequent geological mapping and ground geophysics have demonstrated that the anomalies coincide with and match the width of bedrock outcrop of the Moffat Shale Group. Ground-based geophysical surveys show variations in conductivity with highest values corresponding to carbon-rich mudstones. These findings allow the regional airborne geophysics to be interpreted with greater confidence for incorporation into bedrock geological maps, which underpin aspects of economic and environmental decision making.

Item Type: Publication - Book Section
Digital Object Identifier (DOI): 10.3318/978-1-908996-88-6.ch13
Programmes: BGS Programmes > Geological Survey of Northern Ireland
ISBN: 9781908996879
NORA Subject Terms: Earth Sciences
Date made live: 23 Jan 2017 11:23 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/515912

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