Hostname: page-component-7479d7b7d-767nl Total loading time: 0 Render date: 2024-07-10T10:53:49.824Z Has data issue: false hasContentIssue false
  • English
  • Français

HTO Diffusion in Oxfordian Limestone and Callovo-Oxfordian Argillite Formations

Published online by Cambridge University Press:  17 March 2011

M. Descostes ,
V. Blin ,
B. Grenut ,
P. Meier  and
E. Tevissen
M. Descostes
Affiliation:
Laboratoire de Mesure et Modélisation de la Migration des Radionucléides (L3MR) DEN/DPC/SECR, CEA, 91191 Gif sur Yvette, France, michael.descostes@cea.fr
V. Blin
Affiliation:
Laboratoire de Mesure et Modélisation de la Migration des Radionucléides (L3MR) DEN/DPC/SECR, CEA, 91191 Gif sur Yvette, France
B. Grenut
Affiliation:
Laboratoire de Mesure et Modélisation de la Migration des Radionucléides (L3MR) DEN/DPC/SECR, CEA, 91191 Gif sur Yvette, France
P. Meier
Affiliation:
Laboratoire de Mesure et Modélisation de la Migration des Radionucléides (L3MR) DEN/DPC/SECR, CEA, 91191 Gif sur Yvette, France
E. Tevissen
Affiliation:
Laboratoire de Mesure et Modélisation de la Migration des Radionucléides (L3MR) DEN/DPC/SECR, CEA, 91191 Gif sur Yvette, France
Get access

Abstract

Diffusion coefficients and accessible porosities for HTO were measured on 30 samples from the Andra Underground Rock Laboratory in Meuse/Haute-Marne (France) using the through diffusion technique. Two distinct geological formations were studied: Oxfordian limestone and Callovo-oxfordian argillite between 166 and 477 m depth. The experiences were carried out with synthetic pore-water from each formation. The measured values of the effective diffusion coefficients (De) are ranging from 2.6× 10-12 to 12.4 × 10-11 m2 s-1 while accessible porosities (ε) are between 2.4 and 24%. Good correlations are found between these two parameters.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 824: Symposium CC – Scientific Basis for Nuclear Waste Management XXVIII , 2004 , CC8.29
Copyright
Copyright © Materials Research Society 2004

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Caillaud, J., Bouchet, A., Cassagnabere, A., Marchand, D., Parneix, J. C., F, F. Rassineux. and Sammartino, S.. Analyses minéralogiques et géochimiques Forage EST205. Report ANDRA B RP 0ERM 01-001/A (2001).Google Scholar
2.ANDRA, Référentiel géologique du site de l'EST. Report ANDRA A RP ADS 99-005 (1999).Google Scholar
3. Cranck, J., The Mathematics of Diffusion, 2nd ed., Pergamon Press, Oxford (1975).Google Scholar
4. Melkior, T., Etude méthodolgique de la diffusion de cations interagissants dans des argiles. Ph.D. thesis, Ecole Centrale de Paris (1999).Google Scholar