Figure F21. ODP magnetic direction convention, following the convention of the Shipboard Scientific Parties for Legs 133 and 166. The arrow on the split face of the working half of the core is parallel to the negative z-axis of the drill core. By the right-hand rule, the positive x-axis is directed into the working half perpendicular to the y-z plane on the split face.

Figure F21. ODP magnetic direction convention, following the convention of the Shipboard Scientific Parties for Legs 133 and 166. The arrow on the split face of the working half of the core is parallel to the negative z-axis of the drill core. By the right-hand rule, the positive x-axis is directed into the working half perpendicular to the y-z plane on the split face.