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 11 104 HOLOCENE 0.0 1.2 NO AGE GIVEN NO AGE GIVEN 0 0.011 .0055 DSDP INITIAL REPORTS 11 104 PLEISTOCENE 1.2 5.7 NO AGE GIVEN NO AGE GIVEN 0.011 1.8 .9055 DSDP INITIAL REPORTS 11 104 UPPER MIOCENE 5.7 45.0 NO AGE GIVEN NO AGE GIVEN 5 10.5 7.75 DSDP INITIAL REPORTS 11 104 MIDDLE MIOCENE 62.0 617.0 NO AGE GIVEN NO AGE GIVEN 10.5 16 13.25 DSDP INITIAL REPORTS