5 papers
Poroelastic aquifer response drives seasonal vertical land motion in southern Louisiana
Pritom Sarma, Eduardo Arzabala, Carolina Hurtado-Pulido +4
Coastal Louisiana is sinking, amplifying flooding and land loss, yet the seasonal component of this motion remains difficult to attribute. Satellite geodetic records from Baton Rou…
How effective normal stress oscillations advance failure in fault gouge: frequency dependence, non-failure window, and the role of dilation
Pritom Sarma, Einat Aharonov, Renaud Toussaint +1
Cyclic pore-pressure or normal stress variations arise both in relation to natural earthquakes and in engineered subsurface systems, yet their effect on fault stability remains poo…
Injection-rate effects on failure in a fluid-saturated granular fault gouge
Pritom Sarma, Stanislav Parez, Renaud Toussaint +1
Fluid injection into the Earth's subsurface, performed for energy extraction, waste disposal, and resource development, is known to reactivate gouge-filled faults and induce seismi…
Fault gouge failure induced by fluid injection: Hysteresis, delay and shear-strengthening
Pritom Sarma, Einat Aharonov, Renaud Toussaint +1
Natural faults often contain a fluid-saturated, granular fault-gouge layer, whose failure and sliding processes play a central role in earthquake dynamics. Using a two-dimensional…
Acoustic emissions of nearly steady and uniform granular flows: a proxy for flow dynamics and velocity fluctuations
Vincent Bachelet, Anne Mangeney, Renaud Toussaint +3
The seismic waves emitted during granular flows are generated by different sources: high frequencies by inter-particle shocks and low frequencies by global motion and large scale d…