P226 HiRES-1 AEROMAGNETIC DATA INDICATE NEW GEOLOGICAL STRUCTURE IN CENTRAL ENGLAND R.J. CUSS R.J. PEART and T. PHARAOH British Geological Survey Keyworth Nottingham NG12 5GG UK Abstract 1 The HiRES-1 airborne survey of central England was flown by the British Geological Survey (BGS) in collaboration with World Geoscience (UK) Ltd. (now part of Fugro Airborne Surveys Ltd.) in 1998. The magnetic data were in part severely affected by cultural noise. Because as yet we have not discovered a fully satisfactory automated de-culturing routine the data were cleansed manually. Early examination of the resulting data set allows the extension and interpolation


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