An assessment of Palaeogene and Neogene clay deposits in Denmark as possible host rocks for final disposal of low-and intermediate-level radioactive waste

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Abstract

In Denmark, mapping and preliminary investigations of Palaeogene and Early Neogene clay deposits have been performed over the past 5 years. The goal was to locate potential host rocks for the final disposal of low- and intermediate-level radioactive waste from the Danish Research Centre Risø, which has to be decommissioned within the next 5-8 years. Five areas with low- permeability Paleocene and Oligocene clay formations, situated in northern Jylland, NE Fyn and southern Lolland, not far from the Baltic coast at Femern Belt, have been suggested. The clay formations are between 75 and 150 m thick, and have large lateral distribution. They are covered by thin layers of glacial clayey tills and the shallow depth to the clay formations is attractive, partly because they are easy to access and partly because there are no groundwater aquifers situated above or below the clay deposits. The paper gives an overall review of the characteristics of the six different clay formations within four of the areas.

Original languageEnglish
Title of host publicationRadioactive waste confinement: Clays in natural and engineered barriers
EditorsS. Norris, J. Bruno, M. van Geet, E. Verhoef
PublisherGeological Society of London
Pages29-38
Number of pages10
ISBN (Print)978-1-78620-273-4
DOIs
Publication statusPublished - 2017

Publication series

NameGeological Society Special Publications
PublisherGeological Society of London
Volume443
ISSN (Print)0305-8719

Programme Area

  • Programme Area 5: Nature and Climate

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