Community Research and Development Information Service - CORDIS

Abstract

Clays are being considered as potential hosts for radioactive waste repositories in a number of countries. Potentially, faults in the sedimentary layer could act as vertical conduits for direct groundwater flow from the repository zone to the surface, effectively forming a short circuit in a larger, less active, regional groundwater flow system. The British Geological Survey, in cooperation with ISMES of Italy, is carrying out a research programme into the properties of faults in clay formations. The programme has two major aims; first to develop geophysical techniques to locate and measure the geophysical properties of a fault in clay; second, to measure the hydrogeological properties of the fault and its effect on the groundwater flow patterns through a sequence of clays and aquifers. During the geological survey of the Down Ampney district, the presence of a major fault within the Oxford Clay Formation had been inferred. A series of boreholes was drilled and proved strata ranging in age from Oxford Clay to Forest Marble. Detailed studies of the borehole sequences have enabled firm correlations to be made between them.

Additional information

Authors: HORTON A, British Geological Survey, Nottingham (GB);AMBROSE K, British Geological Survey, Nottingham (GB);COX B, British Geological Survey, Nottingham (GB)
Bibliographic Reference: EUR 12703 EN (1990) 20 pp., FS, ECU 5
Availability: (2)
ISBN: ISBN 92-826-1443-3
Record Number: 199011103 / Last updated on: 1994-12-01
Category: PUBLICATION
Original language: en
Available languages: en