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Application of the M3 code for modelling groundwater chemistry

Published online by Cambridge University Press:  01 February 2011

Marcus Laaksoharju ,
Mel Gascoyne  and
Ioana Gurban
Marcus Laaksoharju
Affiliation:
Geopoint AB, Fridshyddev. 15, SE-19136, Stockholm, Sweden, E-mail: marcus@geopoint.se
Mel Gascoyne
Affiliation:
GeoProjects Inc. Box 141, Pinawa, MB R0E 1L0, Canada
Ioana Gurban
Affiliation:
3D-Terra, 3583 Durocher#1, Montreal, Quebec, H2X 2E7, Canada
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Abstract

The need to decode the complex groundwater information in terms of origin, mixing (transport) and reactions at site scale, necessitated the development of a new modelling tool. This new modelling concept was named M3 (Multivariate Mixing and Mass-balance calculations). Initially, the method quantifies the contribution from the flow system. Subsequently, contributions from reactions are calculated. The M3 code has been used for the following types of modelling: to calculate the mixing portions at different sites and to quantify the contribution from inorganic and organic reactions. For instance, the groundwaters at many sites have been calculated to consist of complex mixtures of different water types such as meteoric water, biogenetically modified water, modern and ancient sea water, glacial meltwater and brine water. Examples from modelling of data from Äspö in Sweden, Oklo in Gabon and the URL in Canada are given.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 807: Symposium Scientific Basis for Nuclear Waste Management XXVII , 2003 , 779
Copyright
Copyright © Materials Research Society 2004

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References

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