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Characterization of the Altered Zone Around a Fracture in Palmottu Natural Analogue

Published online by Cambridge University Press:  15 February 2011

K. Hartikainen ,
H. Pietarila ,
K. Rasilainen ,
H. Nordman ,
T. Ruskeeniemi ,
P. Höltiä ,
M. Siitari-Kauppi  and
J. Timonen
K. Hartikainen
Affiliation:
University of Jyväskyllä, Department of Physics, Jyväskylä, Finland
H. Pietarila
Affiliation:
University of Jyväskyllä, Department of Physics, Jyväskylä, Finland
K. Rasilainen
Affiliation:
VTT Energy, Espoo, Finland
H. Nordman
Affiliation:
VTT Energy, Espoo, Finland
T. Ruskeeniemi
Affiliation:
Geological Survey of Finland, Espoo, Finland
P. Höltiä
Affiliation:
University of Helsinki, Department of Chemistry, Helsinki, Finland
M. Siitari-Kauppi
Affiliation:
University of Helsinki, Department of Chemistry, Helsinki, Finland
J. Timonen
Affiliation:
University of Jyväskyllä, Department of Physics, Jyväskylä, Finland
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Abstract

A drill core sample penetrating at a natural fracture has been analysed by helium gas techniques and by α-autoradiography. Porosity and diffusivity profiles away from the fracture have been determined and compared with structural profiles. Model calculations are used to determine the effects of sample size on the measured porosities and diffusivities.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 412: Symposium V – Scientific Basis for Nuclear Waste Management XIX , 1995 , 839
Copyright
Copyright © Materials Research Society 1996

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References

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