Stress- and fluid-driven failure during fracture array growth: Implications for coupled deformation and fluid flow in the crust
Brittle experimental deformation on dolomite rocks shows for the first time the difference in growth of fracture networks by ordinary percolation and invasion percolation processes. Stress-driven fracture growth, in the absence of fluid pressure, is an ordinary percolation process characterized by distributed nucleation and growth of microfractures, which coalesce with increasing strain to form a connected fracture network. Fluid pressure-driven fracture growth is more akin to an invasion...[Show more]
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