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	173		PLEISTOCENE		0.0	73.5		NO AGE GIVEN		NO AGE GIVEN	0.011	  1.8	.9055	DSDP INITIAL REPORTS
18	173		UPPER PLIOCENE		73.5	81.5		NO AGE GIVEN		NO AGE GIVEN	  1.8	  3.4	  2.6	DSDP INITIAL REPORTS
18	173		PLIOCENE		81.5	110.0		NO AGE GIVEN		NO AGE GIVEN	  1.8	    5	  3.4	DSDP INITIAL REPORTS
18	173		LOWER PLIOCENE		110.0	129.0		NO AGE GIVEN		NO AGE GIVEN	  3.4	    5	  4.2	DSDP INITIAL REPORTS
18	173		UPPER MIOCENE		129.0	186.0		NO AGE GIVEN		NO AGE GIVEN	    5	 10.5	 7.75	DSDP INITIAL REPORTS
18	173		MIDDLE MIOCENE		186.0	252.5		NO AGE GIVEN		NO AGE GIVEN	 10.5	   16	13.25	DSDP INITIAL REPORTS
18	173		LOWER MIOCENE		252.5	310.0		NO AGE GIVEN		NO AGE GIVEN	   16	 22.5	19.25	DSDP INITIAL REPORTS
18	173		UPPER OLIGOCENE		310.0	320.0		NO AGE GIVEN		NO AGE GIVEN	 22.5	   30	26.25	DSDP INITIAL REPORTS