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	29	B	UPPER MIOCENE		57.0	87.0		NO AGE GIVEN		NO AGE GIVEN	    5	 10.5	 7.75	DSDP INITIAL REPORTS
4	29	B	MIDDLE MIOCENE		87.0	97.0		NO AGE GIVEN		NO AGE GIVEN	 10.5	   16	13.25	DSDP INITIAL REPORTS
4	29	B	LOWER MIOCENE		97.0	124.0		NO AGE GIVEN		NO AGE GIVEN	   16	 22.5	19.25	DSDP INITIAL REPORTS
4	29	B	MIDDLE EOCENE		124.0	231.0		NO AGE GIVEN		NO AGE GIVEN	   43	   49	   46	DSDP INITIAL REPORTS