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Abstract

Trial surveys using resistivity, seismic refraction and electromagnetic techniques have been carried out at two potential research sites on Jurassic clays. A previously unknown major fault has been detected at Down Ampney and mapped during the main survey to a precision of 5 to 10 metres by resistivity profiling using a Schlumberger array, optimized from pre-existing data and model studies. The fault is identified by a strong characteristic signature, which results from the fault displacement and a zone of disturbance within the clay. This method is rapid, provides high resolution and permits immediate field interpretation.

Additional information

Authors: JACKSON P D, British Geological Survey, Regional Geophysics Research Group, Keyworth, Nottingham (GB);RAINSBURY M P, British Geological Survey, Regional Geophysics Research Group, Keyworth, Nottingham (GB);HALLAM J R, British Geological Survey, Engineering Geology Research Group, Keyworth, Nottingham (GB);RAINES M G, British Geological Survey, Engineering Geology Research Group, Keyworth, Nottingham (GB);GREENWOOD P G, British Geological Survey, Engineering Geology Research Group, Keyworth, Nottingham (GB);BUSBY J P, British Geological Survey, Engineering Geology Research Group, Keyworth, Nottingham (GB)
Bibliographic Reference: EUR 13203 EN (1991) 74 pp., FS, ECU 7.50
Availability: (2)
ISBN: ISBN 92-826-2344-0
Record Number: 199110397 / Last updated on: 1994-12-02
Category: PUBLICATION
Original language: en
Available languages: en