In [[:file:evaluating-source-rocks_fig6-2.png|Figure 1]], the composite log of Kimmeridge shale, North Sea is a typical log response to a high concentration of organic matter in a shale section. The underlying Heather Formation is very silty. The source rock interval is indicated by dots with dashes through them. Note the high sonic and gamma ray readings and the low density readings. The resistivity log reads only slightly higher than the overlying shale section. | In [[:file:evaluating-source-rocks_fig6-2.png|Figure 1]], the composite log of Kimmeridge shale, North Sea is a typical log response to a high concentration of organic matter in a shale section. The underlying Heather Formation is very silty. The source rock interval is indicated by dots with dashes through them. Note the high sonic and gamma ray readings and the low density readings. The resistivity log reads only slightly higher than the overlying shale section. |