Dynamic Brittle Instability Characteristics of 2000 m Deep Sandstone Influenced by Mineral Composition

Figure 6

Failure mode diagram of deep sandstone compressive - tensile test. (a) S1-1 Shear failure. (b) S1-2 Tensile failure. (c) S1-3 Tensile failure. (d) S1-4 Tensile failure. (e) S1-5 Tensile failure. (f) S1-6 Shear failure. (g) S1-7 Shear failure. (h) S1-8 Tensile failure. (i) Sm-1 Shear failure. (j) Sm-4 Tensile failure. (k) Sm-5 Shear failure.

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