Reconnaissance geophysics to locate major faults in clays
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.
Bibliographic Reference: EUR 13203 EN (1991) 74 pp., FS, ECU 7.50
ISBN: ISBN 92-826-2344-0
Record Number: 199110397 / Last updated on: 1994-12-02
Original language: en
Available languages: en