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 91 596 A 1 2 142.0 142.0 67.00 69.92 1.499 YES HAMILTON FRAME 91 596 A 1 3 19.0 19.0 67.00 70.19 1.483 YES HAMILTON FRAME 91 596 A 1 4 44.0 44.0 67.00 71.94 1.455 YES HAMILTON FRAME 91 596 A 1 5 145.0 145.0 67.00 74.45 1.376 YES HAMILTON FRAME