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
12	117	A	OLIGOCENE		146.0	146.5		NO AGE GIVEN		NO AGE GIVEN	 22.5	 37.5	   30	DSDP INITIAL REPORTS
12	117	A	EOCENE		146.5	154.5		NO AGE GIVEN		NO AGE GIVEN	 37.5	 53.5	 45.5	DSDP INITIAL REPORTS
12	117	A	LOWER EOCENE		154.5	155.0		NO AGE GIVEN		NO AGE GIVEN	   49	 53.5	51.25	DSDP INITIAL REPORTS
12	117	A	LOWER EOCENE		174.0	183.0		NO AGE GIVEN		NO AGE GIVEN	   49	 53.5	51.25	DSDP INITIAL REPORTS
12	117	A	LOWER EOCENE		222.0	227.0		NO AGE GIVEN		NO AGE GIVEN	   49	 53.5	51.25	DSDP INITIAL REPORTS
12	117	A	LOWER EOCENE	UPPER PALEOCENE	270.0	276.0		NO AGE GIVEN	NO AGE GIVEN	NO AGE GIVEN	   49	   60	 54.5	DSDP INITIAL REPORTS
12	117	A	UPPER PALEOCENE		276.0	311.0		NO AGE GIVEN		NO AGE GIVEN	 53.5	   60	56.75	DSDP INITIAL REPORTS