A 3D conductivity model of the Isle of Wight, UK, from airborne EM data

White, J.C.; Beamish, D.. 2009 A 3D conductivity model of the Isle of Wight, UK, from airborne EM data. In: Near Surface 2009, Dublin, Ireland, 7-9 Sept 2009. EAGE.

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Official URL: http://www.eage.org/events/index.php?eventid=110

Abstract/Summary

This study reports the first airborne electromagnetic (AEM) survey in southern England. An airborne geophysical survey incorporating magnetic, radiometric and electromagnetic observations was carried out in 2007 over a 36 x 22 km area incorporating the Isle of Wight. The island is of significant geological interest due to the nature of the reactivated Variscan thrust faulting causing near vertical bedding along a central monocline. Of primary interest to this study was a first chance to deploy AEM over a significant chalk deposit and to assess the accuracy and resolution of the final 3D models in regions of significantly dipping, but well mapped, sedimentary beds. The results of multi-layer inversion are displayed across a 3D conductivity volume. The conductive Gault clay/mudstone is highly resolved against the more resistive Upper Greensand and Chalk and provides a detailed mapping of the concealed geological structure.

Item Type:	Publication - Conference Item (Paper)
Programmes:	BGS Programmes 2009 > Environmental Geoscience Baselines
NORA Subject Terms:	Earth Sciences
Date made live:	08 May 2014 16:08 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/506997

Item Type:

Publication - Conference Item (Paper)

Programmes:

BGS Programmes 2009 > Environmental Geoscience Baselines

NORA Subject Terms:

Earth Sciences

Date made live:

08 May 2014 16:08 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/506997