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 35 325 PLIOCENE UPPER PLIOCENE 34.0 43.5 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 1.8 3.4 2.6 DSDP INITIAL REPORTS 35 325 PLIOCENE 167.0 186.0 NO AGE GIVEN NO AGE GIVEN 1.8 5 3.4 DSDP INITIAL REPORTS 35 325 MIOCENE 290.5 528.0 NO AGE GIVEN NO AGE GIVEN 5 22.5 13.75 DSDP INITIAL REPORTS 35 325 MIDDLE MIOCENE LOWER MIOCENE 612.5 650.5 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 10.5 22.5 16.5 DSDP INITIAL REPORTS 35 325 LOWER MIOCENE 708.5 718.0 NO AGE GIVEN NO AGE GIVEN 16 22.5 19.25 DSDP INITIAL REPORTS