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Figure F51. Summary of logs from Pass 1 of the Formation MicroScanner (FMS)-sonic tool string and logging units, Hole U1418F. Hole size is measured by the two orthogonal calipers of the FMS (C1 and C2). Waveform coherence in the velocity tracks is a measure of the reliability of the slowness/time coherence algorithm used to derive compressional (VP) and shear (VS) velocities from monopole and lower dipole sonic waveforms, respectively.

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