Figure F83. Comparison of densities determined from core samples, gamma-ray attenuation porosity evaluator, multisensor track, and compressional wave velocities from downhole logs and core samples. Raw and robust mode filtered data are shown. Note velocity inversions at 475-505, 625-660, 665-670, 710-720, 780-785, 792.5-795, and 810-835 mbsf.