Laurence Jouniaux

TL;DR: In this paper, a detailed time-space distribution of acoustic emission (AE) events during the catastrophic fracture of rock samples containing a preexisting joint or potential fracture plane is obtained under triaxial compression using a high-speed 32-channel waveform recording system, and the results are discussed with respect to the prediction and characterization of catastrophic fault failure.

TL;DR: In this paper, the authors measured the electrokinetic coupling coefficient, which is the ratio of the streaming potential and the excess pore pressure, in the case of an earthquake, and found that the typical variation of the coupling coefficient is a large increase beginning with the onset of the localization of the shear band at 75% of the yield stress and stopping at the failure.

TL;DR: In this article, the streaming potential in partial water saturation conditions in porous media is quantified using a sand column of 1 m height and 8 cm diameter, where different gases such as argon, nitrogen, and carbon dioxide are injected into the sand to decrease its water saturation, and to make the fluid flow within the sand.

TL;DR: In this article, the 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 Pelde volcano.

TL;DR: The self-potential (SP) method is a passive geophysical method based on the natural occurrence of electrical fields on the Earth's surface as mentioned in this paper, which is especially useful for localizing and quantifying groundwater flows and pollutant plume spreading, and estimating pertinent hydraulic properties of aquifers (water table, hydraulic conductivity).