Figure F98. Comparison of core and log measurements to assess log quality from Hole 1139A. Thick lines may be correlated with unit boundaries; thin lines indicate variations within basement units. Total natural gamma radiation of the formation determined from downhole logs and multisensor track (MST) continuous measurements agree well. Velocity logging data and discrete core measurements are offset in the sediments (see "Seismic Stratigraphy"). We compare shallow resistivity log data to MST density measurements to correlate general trends. In the sedimentary section, the shallow resistivity positively correlates with the density data.