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Effects on Fissure Calcite by Recharge Water - Some Problems Related to 14C-Dating of Groundwater

Published online by Cambridge University Press:  28 February 2011

Eva-Lena Tullborg
Eva-Lena Tullborg*
Affiliation:
Sveriges Geologiska AB, Kungsgatan 4, S-411 19 GÖTEBORG
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Abstract

The modelling of water flow in the bedrock is of especial importance for safetyassessementof radioactive waste disposal in crystalline rocks. Age dating of the water has been tried for the validation of ground water transport models. Thus, several tritium and 14C-analyses have been carried out on water samples from deep boreholes drilled within SKB's (Swedish Nuclear Fuel and Waste Management Company) study sites. However, several processes will influence the final content of 14C in the groundwater measured and correction for enrichment and dilution are hard to carry out. Another contribution to the understanding of recharge water transport by using frequency and stable isotope analyses of calcite fissure fillings is suggested.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 50: Symposium STOCKHOLM – Scientific Basis for Nuclear Waste Management IX , 1985 , 129
Copyright
Copyright © Materials Research Society 1985

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