leg	site	hole	age mnemonic	auxiliary age mnemonic	top of section depth(m)	bottom of section depth(m)	special condition	age	auxiliary age	averaged age	age top of section(million years)	age bottom of section(million years)	average age(million years)t	data source
18	172		QUATERNARY		0.0	8.0		NO AGE GIVEN		NO AGE GIVEN	    0	  1.8	  0.9	DSDP INITIAL REPORTS
18	172		NEOGENE		9.0	18.0		NO AGE GIVEN		NO AGE GIVEN	  1.8	 22.5	12.15	DSDP INITIAL REPORTS
18	172		LOWER OLIGOCENE		18.0	23.0		NO AGE GIVEN		NO AGE GIVEN	   30	 37.5	33.75	DSDP INITIAL REPORTS