Event label	Optional label	Method/Device	Abbreviation	O2A Registry URI	Date/Time	Latitude	Longitude	Elevation	Date/Time end	Latitude end	Longitude end	Elevation end	Comment
137-504		Composite Core	COMPCORE		1991-04-07T00:00:00	1.22690	-83.73030	-3474	1991-04-29T00:00:00				11 cores; 1347 m cored; 0 m drilled; 1% recovery
137-504B		Drilling/drill rig	DRILL		1991-04-07T13:10:00	1.22690	-83.73030	-3474	1991-04-29T01:00:00				8 cores; 48.6 m cored; 0 m drilled; 18 % recovery