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 25 248 QUATERNARY 0.0 10.0 NO AGE GIVEN NO AGE GIVEN 0 1.8 0.9 DSDP INITIAL REPORTS 25 248 UPPER PLIOCENE 47.0 129.0 NO AGE GIVEN NO AGE GIVEN 1.8 3.4 2.6 DSDP INITIAL REPORTS 25 248 UPPER MIOCENE 129.0 160.0 NO AGE GIVEN NO AGE GIVEN 5 10.5 7.75 DSDP INITIAL REPORTS 25 248 MIDDLE MIOCENE 199.0 208.0 NO AGE GIVEN NO AGE GIVEN 10.5 16 13.25 DSDP INITIAL REPORTS 25 248 LOWER MIOCENE 312.0 314.0 NO AGE GIVEN NO AGE GIVEN 16 22.5 19.25 DSDP INITIAL REPORTS 25 248 UPPER EOCENE 314.0 321.0 NO AGE GIVEN NO AGE GIVEN 37.5 43 40.25 DSDP INITIAL REPORTS 25 248 LOWER EOCENE 360.0 407.0 NO AGE GIVEN NO AGE GIVEN 49 53.5 51.25 DSDP INITIAL REPORTS 25 248 LOWER EOCENE PALEOCENE 407.0 416.0 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 49 65 57 DSDP INITIAL REPORTS