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Abstract

The objectives, methods and results of hydrological investigation of the granite at an experimental site in Cornwall are described and discussed. Constant head injection tests and radioactive tracer experiments have revealed a fracture permeability in which water movement is confined to discrete fractures seperated by rock of very low permeability. Data on flow path frequency, orientation and effective hydraulic aperture, required for network modelling, are presented for a 700 m borehole, with additional hydraulic data from three other boreholes. migration have been identified. A mean hydraulic conductivity for the granite investigated of 1.57 x 10**- 7 ms**-1 has been obtained, 2.11 x 10**-8ms**-1 if the major hydraulic features are excluded.

Additional information

Authors: HEATH M J ELCON WESTERN LTD., REDRUTH (UK) DURRANCE E M EXETER UNIVERSITY (UK) , ELCON WESTERN LTD., REDRUTH (UK);EXETER UNIVERSITY (UK)
Bibliographic Reference: EUR 9668 EN (1985) FS, 73 P., BFR 300, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
Record Number: 1989123045800 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en
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