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 10 91 UPPER PLEISTOCENE 60.0 195.0 NO AGE GIVEN NO AGE GIVEN 0.01 0.7 0.355 DSDP INITIAL REPORTS 10 91 MIDDLE PLEISTOCENE 301.0 413.0 NO AGE GIVEN NO AGE GIVEN 0.8 1.2 1 DSDP INITIAL REPORTS 10 91 LOWER PLEISTOCENE 490.0 495.0 NO AGE GIVEN NO AGE GIVEN 1.2 1.8 1.5 DSDP INITIAL REPORTS 10 91 UPPER PLIOCENE 530.0 538.0 NO AGE GIVEN NO AGE GIVEN 1.8 3.4 2.6 DSDP INITIAL REPORTS 10 91 MIDDLE MIOCENE 652.0 899.6 NO AGE GIVEN NO AGE GIVEN 10.5 16 13.25 DSDP INITIAL REPORTS