leg site hole core section top interval depth(cm) bottom interval depth(cm) top of core depth(m) sample midpoint depth(m) analyst piece number lithology shipboard or onshore measurement data source thermomagnetic curve curie temperature saturation intensity saturation remanence coercive force remanent coercive force grain-size 54 421 3 1 72.0 75.0 95.00 95.74 PETERSEN, N. 11 IGNEOUS SHIPBOARD INITIAL REPORTS (IR) 270 54 421 3 1 72.0 75.0 95.00 95.74 PETERSEN, N. 11 IGNEOUS SHIPBOARD INITIAL REPORTS (IR) 270