SharePoint
Aide
IRSN, Institut de radioprotection et de sûreté nucléaire

Search our site :

ok

Contact us :

ok
En Fr

Enhancing Nuclear Safety


Research

Publications

Characterization of fractures as water-conducting features in shales. Studies at the Tournemine test site.

Cabrera, J.; De Windt, L.; Moreau-Le Golvan, Y.; Boisson, J.Y. actes du congrès "Characterisation of water-conducting features and their representation in models of radionuclide migration" Barcelona (Spain) 10-12 Jun 1998; OECD-NEA 1999 379 p. p. 295-296

Document type > *Congrès/colloque

Keywords > hydrogeology, rift/fault, underground laboratory

Research Unit > IRSN/DEI/SARG/BEHRIG

Authors > BOISSON Jean-Yves, CABRERA Justo

Publication Date > 10/12/1998

Summary

The Institute of Protection and Nuclear Safety (irsn) develops research programs concerning the confining properties of an argillaceous formation at the irsn Tournemine site (Aveyron, France). This well-consolidated argillaceous media of Jurassic age presents a very low permeability. Water circulations seem to be of very minor importance in the shales, with a main diffusive component for transport. However, recent field studies, from radial boreholes around the Tournemine tunnel and two gallery excavations in the argilites, document a fractured zone of tectonic origin associated with a main fault. It is an interesting case to analyze the fractures and faults in argillaceous media and their past present and future roles in possible fluid transfers. Fracture investigation as water-conducting features for transport is supported by different approaches: structural and tectonics analyses, interpretation of the present water circulation and chemistry, characterisation of the circulation and chemistry of the paleo-fluids through studies of the fracture mineral fillings, and experiments on sorption of radionuclides performed at laboratory.

Close

Send to a friend

The information you provide in this page are single use only and will not be saved.
* Required fields

Recipient's email:*  

Sign with your name:* 

Type your email address:*   

Add a message :

Do you want to receive a copy of this email?

Send

Cancel

Close

WP_IMPRIMER_TITLE

WP_IMPRIMER_MESSAGE

Back

Ok