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
81	553		1	2	68.0	68.0	0.00	2.18	1.536		YES	HORIZONTAL	HAMILTON FRAME
81	553		1	4	58.0	58.0	0.00	5.08	1.525		YES	HORIZONTAL	HAMILTON FRAME