leg site hole core section top interval depth(centimeters) bottom interval depth(centimeters) top of core depth(meters) sample midpoint depth(meters) analyst code piece number lithology shipboard or onshore measurement data source nrm intensity nrm inclination nrm declination stable inclination stable declination quality of orientation mean demagnetizing field initial susceptibility koenigsberger ration comments 73 520 30 1 101.0 103.0 446.00 447.02 PETERSEN, N. 7 IGNEOUS SHIPBOARD INITIAL REPORTS (IR) 98.74@-4 58.2 57.2 550 APHYRIC TO OL-PLAG MICROPHYRIC BASALT,ALT MOD* 3 73 520 31 1 6.0 8.0 450.50 450.57 PETERSEN, N. 1 IGNEOUS SHIPBOARD INITIAL REPORTS (IR) 55.47@-4 50.3 53.0 460 42.2@-4 49. APHYRIC BASALT,ALT MOD* 3