leg site hole core section top interval depth (cm) bottom interval depth (cm) top of core depth (m) sample depth (m) sonic velocity (km/sec)temperature(degrees C) split core orientation instrument code 67 500 13 2 10.0 10.0 109.00 110.60 1.529 NO HORIZONTAL HAMILTON FRAME 67 500 14 1 20.0 20.0 118.50 118.70 1.745 NO HORIZONTAL HAMILTON FRAME 67 500 15 4 50.0 50.0 128.00 133.00 1.886 NO HORIZONTAL HAMILTON FRAME 67 500 17 2 90.0 90.0 147.00 149.40 2.478 NO HORIZONTAL HAMILTON FRAME 67 500 17 3 50.0 50.0 147.00 150.50 1.887 NO HORIZONTAL HAMILTON FRAME 67 500 18 1 52.0 52.0 156.50 157.02 5.136 NO HAMILTON FRAME