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Figure 4 | Earth, Planets and Space

Figure 4

From: Frictional properties of sediments entering the Costa Rica subduction zone offshore the Osa Peninsula: implications for fault slip in shallow subduction zones

Figure 4

Difference in shear strength between Unit I and Unit II sediments. (a) Friction coefficient values (both initial peak and steady-state values) at constant velocity (0.28 mm/s) plotted against the depth intervals (mbsf) of the recovered core samples. (b), (c) Evolution of the coefficient of friction with shear displacement for two representative samples: U1381A-6R-2 W (Unit I) and U1381A-8R-1 W (Unit II).

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