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 38 346 PLEISTOCENE 0.0 16.0 NO AGE GIVEN NO AGE GIVEN 0.011 1.8 .9055 DSDP INITIAL REPORTS 38 346 PLEISTOCENE PLIOCENE 16.0 25.5 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 0.011 5 2.506 DSDP INITIAL REPORTS 38 346 MIDDLE MIOCENE 25.5 101.5 NO AGE GIVEN NO AGE GIVEN 10.5 16 13.25 DSDP INITIAL REPORTS 38 346 OLIGOCENE 110.0 120.5 NO AGE GIVEN NO AGE GIVEN 22.5 37.5 30 DSDP INITIAL REPORTS 38 346 EOCENE 120.5 187.0 NO AGE GIVEN NO AGE GIVEN 37.5 53.5 45.5 DSDP INITIAL REPORTS