Controlled changes in grain size and pore characteristics and their impact on the hydraulic conductivity and spectral induced polarization response of proxies of alluvial sediments
Détails
ID Serval
serval:BIB_1BC446003365
Type
Actes de conférence (partie): contribution originale à la littérature scientifique, publiée à l'occasion de conférences scientifiques, dans un ouvrage de compte-rendu (proceedings), ou dans l'édition spéciale d'un journal reconnu (conference proceedings).
Collection
Publications
Institution
Titre
Controlled changes in grain size and pore characteristics and their impact on the hydraulic conductivity and spectral induced polarization response of proxies of alluvial sediments
Editeur
Society of Exploration Geophysicists
Organisation
SEG Technical Program Expanded Abstracts
ISSN-L
1052-3812
Statut éditorial
Publié
Date de publication
2009
Langue
anglais
Notes
Koch2009
Résumé
Understanding the influence of pore space characteristics on the hydraulic
conductivity and spectral induced polarization (SIP) response is
critical for establishing relationships between the electrical and
hydrological properties of surficial sedimentary deposits. Here,
we present the results of laboratory SIP measurements on saturated
quartz samples with granulometric characteristics ranging from fine
sand to fine gravel. We alter the pore characteristics using three
principal methods: (i) variation of the grain sizes, (ii) changing
the degree of compaction, and (iii) changing the level of sorting.
We then examine how these changes affect both the SIP response and
the hydraulic conductivity. In general, the results indicate a clear
connection between the applied changes in pore characteristics and
the SIP response. In particular, we observe a systematic correlation
between the hydraulic conductivity and the relaxation time of the
Cole‐Cole model describing the observed SIP effect for the whole
range of considered grain sizes.
conductivity and spectral induced polarization (SIP) response is
critical for establishing relationships between the electrical and
hydrological properties of surficial sedimentary deposits. Here,
we present the results of laboratory SIP measurements on saturated
quartz samples with granulometric characteristics ranging from fine
sand to fine gravel. We alter the pore characteristics using three
principal methods: (i) variation of the grain sizes, (ii) changing
the degree of compaction, and (iii) changing the level of sorting.
We then examine how these changes affect both the SIP response and
the hydraulic conductivity. In general, the results indicate a clear
connection between the applied changes in pore characteristics and
the SIP response. In particular, we observe a systematic correlation
between the hydraulic conductivity and the relaxation time of the
Cole‐Cole model describing the observed SIP effect for the whole
range of considered grain sizes.
Mots-clé
electrical/resistivity, hydrology, induced polarization, permeability, sediment
Création de la notice
25/11/2013 17:31
Dernière modification de la notice
21/08/2019 5:13
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