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
4	31		PLEISTOCENE		0.0	41.0		NO AGE GIVEN		NO AGE GIVEN	0.011	  1.8	.9055	DSDP INITIAL REPORTS
4	31		UPPER PLIOCENE		60.0	88.0		NO AGE GIVEN		NO AGE GIVEN	  1.8	  3.4	  2.6	DSDP INITIAL REPORTS
4	31		LOWER PLIOCENE		88.0	106.0		NO AGE GIVEN		NO AGE GIVEN	  3.4	    5	  4.2	DSDP INITIAL REPORTS
4	31		MIDDLE MIOCENE		155.0	164.0		NO AGE GIVEN		NO AGE GIVEN	 10.5	   16	13.25	DSDP INITIAL REPORTS
4	31		LOWER MIOCENE		212.0	221.0		NO AGE GIVEN		NO AGE GIVEN	   16	 22.5	19.25	DSDP INITIAL REPORTS
4	31		UPPER OLIGOCENE		270.0	279.0		NO AGE GIVEN		NO AGE GIVEN	 22.5	   30	26.25	DSDP INITIAL REPORTS