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 86 577 A UPPER PLEISTOCENE 0.0 9.4 NO AGE GIVEN NO AGE GIVEN 0.01 0.7 0.355 DSDP INITIAL REPORTS 86 577 A LOWER PLEISTOCENE 9.4 18.9 NO AGE GIVEN NO AGE GIVEN 1.2 1.8 1.5 DSDP INITIAL REPORTS 86 577 A LOWER PLEISTOCENE UPPER PLIOCENE 18.9 28.4 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 1.2 3.4 2.3 DSDP INITIAL REPORTS 86 577 A UPPER PLIOCENE 28.4 37.9 NO AGE GIVEN NO AGE GIVEN 1.8 3.4 2.6 DSDP INITIAL REPORTS 86 577 A LOWER PLIOCENE 37.9 47.4 NO AGE GIVEN NO AGE GIVEN 3.4 5 4.2 DSDP INITIAL REPORTS 86 577 A LOWER PLIOCENE UPPER MIOCENE 47.4 56.9 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 3.4 10.5 6.95 DSDP INITIAL REPORTS 86 577 A UPPER MIOCENE LOWER EOCENE 56.9 66.4 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 5 53.5 29.25 DSDP INITIAL REPORTS 86 577 A LOWER EOCENE 66.4 75.9 NO AGE GIVEN NO AGE GIVEN 49 53.5 51.25 DSDP INITIAL REPORTS 86 577 A LOWER EOCENE UPPER PALEOCENE 75.9 85.4 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 49 60 54.5 DSDP INITIAL REPORTS 86 577 A LOWER PALEOCENE 85.4 109.6 NO AGE GIVEN NO AGE GIVEN 60 65 62.5 DSDP INITIAL REPORTS 86 577 A MAESTRICHTIAN 109.6 123.4 NO AGE GIVEN NO AGE GIVEN 65 70 67.5 DSDP INITIAL REPORTS