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 68 503 A QUATERNARY 0.0 32.6 NO AGE GIVEN NO AGE GIVEN 0 1.8 0.9 DSDP INITIAL REPORTS 68 503 A PLEISTOCENE 32.6 34.1 NO AGE GIVEN NO AGE GIVEN 0.011 1.8 .9055 DSDP INITIAL REPORTS 68 503 A UPPER PLIOCENE 34.1 54.6 NO AGE GIVEN NO AGE GIVEN 1.8 3.4 2.6 DSDP INITIAL REPORTS 68 503 A UPPER PLIOCENE LOWER PLIOCENE 54.6 63.4 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 1.8 5 3.4 DSDP INITIAL REPORTS 68 503 A LOWER PLIOCENE 63.4 126.6 NO AGE GIVEN NO AGE GIVEN 3.4 5 4.2 DSDP INITIAL REPORTS 68 503 A LOWER PLIOCENE UPPER MIOCENE 126.6 129.4 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 3.4 10.5 6.95 DSDP INITIAL REPORTS 68 503 A LOWER PLIOCENE 129.4 142.6 A LEGITIMATE AGE INVERSION NO AGE GIVEN NO AGE GIVEN 3.4 5 4.2 DSDP INITIAL REPORTS 68 503 A UPPER MIOCENE 142.6 235.0 NO AGE GIVEN NO AGE GIVEN 5 10.5 7.75 DSDP INITIAL REPORTS