Fluid-Driven Reactions Restore Fault Strength Between Earthquakes
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Marcos Moreno
7d agoen
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EosFluid-Driven Reactions Restore Fault Strength Between Earthquakeseos.orgHow a water-bearing fault gains strength over time. Starting from loose mineral grains separated by open pore space (left), grain contacts first grow as the fault sits locked (center); when fluids are present, a chemical reaction grows new mineral rims that cement neighboring grains together (right). This fluid-driven cementation raises the fault’s cohesion and, counterintuitively, its potential to fail in an earthquake. Credit: Affinito et al. [2026] , Figure 6c
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