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 15 154 A 17 6 80.0 80.0 153.00 161.30 1.714 NO HAMILTON FRAME 15 154 A 17 6 80.0 80.0 153.00 161.30 1.728 NO HAMILTON FRAME