Open AccessStreaming potential in volcanic rocks from Mount Pelée
Author(s) -
Jouniaux Laurence,
Bernard Marie Lise,
Zamora Maria,
Pozzi Jean Pierre
Publication year - 2000
Publication title -
journal of geophysical research: solid earth
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.67
H-Index - 298
eISSN - 2156-2202
pISSN - 0148-0227
DOI - 10.1029/1999jb900435
Subject(s) - streaming current , volcano , zeta potential , conductivity , mount , permeability (electromagnetism) , mineralogy , geology , electrical resistivity and conductivity , analytical chemistry (journal) , materials science , chemistry , geochemistry , nanotechnology , environmental chemistry , physics , membrane , biochemistry , quantum mechanics , nanoparticle , computer science , operating system , electrokinetic phenomena
Streaming potential and electric conductivity have been measured in a laboratory on 11 consolidated samples coming from five deposits of the different evolutionary stages of Mount Pelée volcano. The streaming potential coupling coefficient ranges from −35 to −4905 mV MPa −1 and increases with increasing permeability. This increase is mainly due to the dependency of rock effective conductivity with permeability. The permeability of the samples varies from 0.146×10 −12 to 34×10 −12 m 2 . The zeta potential, at pH = 7 and water conductivity of 2.1×10 −4 S m −1 , is relatively small for the majority of the samples. It ranges from −4 to −19 mV. According to water conductivity analysis on Mount Pelée, streaming potential coupling coefficients of −25 to −406 mV MPa −1 can be expected for this volcano.