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 90 594 QUATERNARY 0.0 82.7 NO AGE GIVEN NO AGE GIVEN 0 1.8 0.9 DSDP INITIAL REPORTS 90 594 PLEISTOCENE 82.7 111.5 NO AGE GIVEN NO AGE GIVEN 0.011 1.8 .9055 DSDP INITIAL REPORTS 90 594 LOWER PLEISTOCENE 111.5 131.7 NO AGE GIVEN NO AGE GIVEN 1.2 1.8 1.5 DSDP INITIAL REPORTS 90 594 UPPER PLIOCENE 131.7 149.9 NO AGE GIVEN NO AGE GIVEN 1.8 3.4 2.6 DSDP INITIAL REPORTS 90 594 LOWER PLIOCENE 159.5 182.5 NO AGE GIVEN NO AGE GIVEN 3.4 5 4.2 DSDP INITIAL REPORTS 90 594 UPPER MIOCENE 182.5 361.1 NO AGE GIVEN NO AGE GIVEN 5 10.5 7.75 DSDP INITIAL REPORTS 90 594 MIDDLE MIOCENE 361.1 505.1 NO AGE GIVEN NO AGE GIVEN 10.5 16 13.25 DSDP INITIAL REPORTS