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 20 197 1 1 15.0 15.0 275.00 275.15 2.797 NO VERTICAL HAMILTON FRAME 20 197 1 1 35.0 35.0 275.00 275.35 5.011 NO VERTICAL HAMILTON FRAME 20 197 1 1 35.0 35.0 275.00 275.35 5.211 NO HORIZONTAL HAMILTON FRAME 20 197 1 1 48.0 48.0 275.00 275.48 5.124 NO VERTICAL HAMILTON FRAME 20 197 1 1 75.0 75.0 275.00 275.75 4.829 NO HORIZONTAL HAMILTON FRAME