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
78-541_Site		Composite Core	COMPCORE		1981-02-13T00:00:00	15.52000	-58.72830	-4940					50 cores; 459 m cored; 0 m drilled; 87.3% recovery
78-541		Drilling/drill rig	DRILL		1981-02-13T00:00:00	15.52000	-58.72830	-4940					50 cores; 459 m cored; 0 m drilled; 87.3 % recovery
78-542_Site		Composite Core	COMPCORE		1981-02-21T00:00:00	15.51825	-58.71330	-5016					14 cores; 133 m cored; 0 m drilled; 81.5% recovery
78-542B		Drilling/drill rig	DRILL		1981-02-21T00:00:00	15.52000	-58.71320	-5016					MECHANICAL OR EQUIP FAILURE
78-542		Drilling/drill rig	DRILL		1981-02-21T00:00:00	15.51700	-58.71330	-5016					4 cores; 38 m cored; 0 m drilled; 93 % recovery
78-542A		Drilling/drill rig	DRILL		1981-02-21T00:00:00	15.51950	-58.71330	-5016					10 cores; 95 m cored; 0 m drilled; 76.8 % recovery
78-543_Site		Composite Core	COMPCORE		1981-02-28T00:00:00	15.71230	-58.65370	-5633					48 cores; 437.5 m cored; 19 m drilled; 66.5% recovery
78-543		Drilling/drill rig	DRILL		1981-02-28T00:00:00	15.71230	-58.65370	-5633					32 cores; 305 m cored; 19 m drilled; 74.4 % recovery
78-543A		Drilling/drill rig	DRILL		1981-02-28T00:00:00	15.71230	-58.65370	-5633					16 cores; 132.5 m cored; 0 m drilled; 48.5 % recovery