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Earth, Planets and Space
Figure 4 | Earth, Planets and Space

Figure 4

From: Geotechnical behavior of mudstones from the Shimanto and Boso accretionary complexes, and implications for the Nankai accretionary prism

Figure 4

p ′- q ′ plot determined from maximum σ 1 and σ 3 conditions achieved during triaxial testing in each deformation stage. Note that the Mohr-Coulomb slopes of each sample group are very similar. However, there are important differences in the cohesion, mainly reflecting different degrees of diagenesis or very low grade metamorphism in different settings. The qualities of fit (R2) for the three functions describing the Mohr-Coulomb slopes are as follows: Nankai: 0.9555, Boso: 0.9885, Shimanto: 0.9731. See text for discussion.

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