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PORTAIL D'INFORMATION GÉOGRAPHIQUE

The use of specific surface area, pore volume, and pore area in evaluating the degree of weathering of fine particles : an example from Lauhanvuori, western Finland

Auteurs :
NIEMINEN, P.
SALOMAA, R.
UUSINOKA, R.

Description :
Sedigraph analysis, nitrogen adsorption method and mercury porosimeter test. The fine grained material from weathered granite has specific surface area values of for greater than those corresponding from silty till and clayey vein. The results of the mercury porosimeter test show a strong increase in the cumulative pore volume and pore area in pores with diameters less than 1 micrometre, as compared with the corresponding pore sizes in the finest powder of a similar grain size distribution from artificially crushed granite.


Type de document :
Article de périodique

Source :
Fennia (Helsinki. 1889), issn : 0015-0010, 1985, vol. 163, n°. 2, p. 373-377, Références bibliographiques : 5 réf.

Date :
1985

Editeur :
Pays édition : Finlande, Helsinki, Societas Geographica Fenniae

Langue :
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)