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Fig. 2 | Progress in Earth and Planetary Science

Fig. 2

From: In-situ mechanical weakness of subducting sediments beneath a plate boundary décollement in the Nankai Trough

Fig. 2

Examples of drilling performance parameters collected at site C0023. WOB, Tr, and RPM data were sampled at the surface every second. ROP was recalculated using bit depth data recorded in the same manner as that of the other drilling parameters. Abbreviations in the inset include WOB weight on bit, Tr torque, RPM rotations per minute, ROP rate of penetration, MSE mechanical specific energy

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