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 49 413 1 2 64.0 64.0 110.00 112.14 4.651 NO HAMILTON FRAME 49 413 1 2 66.0 66.0 110.00 112.16 4.906 NO HAMILTON FRAME