Self-potential characteristics of the dormant period of Izu-Oshima volcano

Matsushima, Nobuo; Nishi, Yuji; Onizawa, Shin’ya; Takakura, Shinichi; Häse, H.; Ishido, Tsuneo

doi:10.1007/s00445-017-1173-1

Cited by 2 publications

(1 citation statement)

References 26 publications

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“…In addition to the electrokinetic effects studied here, SP anomalies in volcanic settings can also arise from electrochemical, thermoelectric and redox‐processes (e.g., Zlotnicki & Nishida, 2003) within hydrothermal systems and alteration zones and may need to be quantified separately. Furthermore, SP amplitudes are sensitive to the water‐saturation in soils above aquifers (Matsushima et al., 2017) and heterogeneities in subsurface resistivity (e.g., Ishido, 2004). A number of studies show that the streaming potential coupling coefficient depends not only on the water salinity but also on hydraulic rock properties, temperature, pore water conductivity and EDL properties (e.g., Ishido, 2004; Jouniaux & Pozzi, 1995; Jouniaux et al., 2000; Revil, Saracco et al., 2003).…”

Section: Discussionmentioning

confidence: 99%

Electrokinetic Contributions to Self‐Potential Signals From Magmatic Stressing

Arens

Gottsmann

Strehlow

et al. 2020

Geochem Geophys Geosyst

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Volcanic unrest is often accompanied by anomalous geophysical and geochemical signals that are generally attributed to processes within the subvolcanic plumbing system (Salvage et al., 2017). Precise eruption forecasting remains a key issue in volcanology and depends on the correlation of volcanic precursors to subsurface causative mechanisms (Magee et al., 2018; Sparks, 2003). A major challenge in volcano monitoring is to establish whether a period of volcanic unrest will culminate in an eruption or wane without eruptive activity (Gottsmann et al., 2017; Phillipson et al., 2013; Sparks et al., 2012). Volcano deformation is a prevalent observable during volcanic unrest (Sparks et al., 2012) caused by pressure changes in the magma reservoir (Lisowski, 2006). Geodetic modeling exploits observed surface displacement to constrain source properties (e.g., pressure changes) and mechanisms driving unrest periods (e.g.,

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