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
23	220		UPPER PLEISTOCENE		0.0	6.0		NO AGE GIVEN		NO AGE GIVEN	 0.01	  0.7	0.355	DSDP INITIAL REPORTS
23	220		LOWER PLEISTOCENE		6.0	12.5		NO AGE GIVEN		NO AGE GIVEN	  1.2	  1.8	  1.5	DSDP INITIAL REPORTS
23	220		UPPER PLIOCENE		12.5	18.0		NO AGE GIVEN		NO AGE GIVEN	  1.8	  3.4	  2.6	DSDP INITIAL REPORTS
23	220		LOWER PLIOCENE		18.0	30.5		NO AGE GIVEN		NO AGE GIVEN	  3.4	    5	  4.2	DSDP INITIAL REPORTS
23	220		UPPER MIOCENE		30.5	33.0		NO AGE GIVEN		NO AGE GIVEN	    5	 10.5	 7.75	DSDP INITIAL REPORTS
23	220		MIDDLE MIOCENE		33.0	45.0		NO AGE GIVEN		NO AGE GIVEN	 10.5	   16	13.25	DSDP INITIAL REPORTS
23	220		UPPER OLIGOCENE		93.0	120.0		NO AGE GIVEN		NO AGE GIVEN	 22.5	   30	26.25	DSDP INITIAL REPORTS
23	220		MIDDLE OLIGOCENE		150.0	168.0		NO AGE GIVEN		NO AGE GIVEN	   29	   32	 30.5	DSDP INITIAL REPORTS
23	220		UPPER EOCENE		198.0	199.5		NO AGE GIVEN		NO AGE GIVEN	 37.5	   43	40.25	DSDP INITIAL REPORTS
23	220		MIDDLE EOCENE		232.0	268.0		NO AGE GIVEN		NO AGE GIVEN	   43	   49	   46	DSDP INITIAL REPORTS
23	220		LOWER EOCENE		288.0	330.0		NO AGE GIVEN		NO AGE GIVEN	   49	 53.5	51.25	DSDP INITIAL REPORTS