IODP Expedition 307: Modern Carbonate Mounds: Porcupine Basin Drilling
Figure 6

Core-log integration at Site U1316 gamma-ray, porosity, density, velocity. Post-cruise correlation between features recorded in these logs (especially acoustic, density and gamma-ray) offer potential to provide in-situ ground truth for core data. Note that in the velocity plots, the range of velocity is similar for all datasets (1400 m/s) but absolute values between cores and logs differ by 300 m/s. The core values are about 300 m/s lower than logging data, probably due to expansion of core now under atmospheric pressure.