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
28	273		QUATERNARY	PLIOCENE	0.0	23.5		NO AGE GIVEN	NO AGE GIVEN	NO AGE GIVEN	    0	    5	  2.5	DSDP INITIAL REPORTS
28	273		PLIOCENE	UPPER MIOCENE	23.5	33.0		NO AGE GIVEN	NO AGE GIVEN	NO AGE GIVEN	  1.8	 10.5	 6.15	DSDP INITIAL REPORTS
28	273		UPPER MIOCENE		33.0	42.5		NO AGE GIVEN		NO AGE GIVEN	    5	 10.5	 7.75	DSDP INITIAL REPORTS
28	273		UPPER MIOCENE	MIDDLE MIOCENE	42.5	76.0		NO AGE GIVEN	NO AGE GIVEN	NO AGE GIVEN	    5	   16	 10.5	DSDP INITIAL REPORTS