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  • El Berrocal project : Characterization and validation of natural radionuclide migration processes under real conditions on the fissured granitic environment

Abstract

The El Berrocal project is an exercise in geological, geochemical and hydrogeological characterisation with the aim of understanding the past and present-day migration processes that control the distribution of naturally occurring radionuclides in a fractured granitic environment. The objectives are broadly focused on those processes which have relevance to safety assessments for radioactive waste disposal. The El Berrocal study is located some 90 km SW of Madrid in a Hercynian granite that has intruded into older biotitic granites. The El Berrocal granite hosts a uranium orebody which was mined and abandoned in the 1960s. Although most of the mine is now closed-off, a 70 m long access gallery driven into the hillside that intersects the mineralised quartz vein is still open. Work at El Berrocal included geological and structural mapping, and detailed mineralogical, lithogeochemical and hydrogeochemical analyses including stable and radiometric analyses, colloid studies, tracer tests, development of downhole probes, hydrogeological characterisation and coupled flow and transport modelling.

Additional information

Authors: RIVAS P, Ciemat (ES);CARRERA J, UPC (ES);IVANOVICH M, AEA (GB);HOLMES D, BGS (GB);VINSON J M, CEA (FR);AVOGADRO S, JRC (IT);ASTUDILLO J (EDITORS), Enresa (ES)
Bibliographic Reference: EUR 15908 EN (1995) 126 pp., FS, ECU 15
Availability: (2)
ISBN: ISBN 92-826-9050-4
Record Number: 199411347 / Last updated on: 1995-03-21
Category: PUBLICATION
Original language: en
Available languages: en