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 43 386 PLEISTOCENE 52.6 62.1 NO AGE GIVEN NO AGE GIVEN 0.011 1.8 .9055 DSDP INITIAL REPORTS 43 386 UPPER MIOCENE 100.1 109.6 NO AGE GIVEN NO AGE GIVEN 5 10.5 7.75 DSDP INITIAL REPORTS 43 386 LOWER MIOCENE 147.2 155.9 NO AGE GIVEN NO AGE GIVEN 16 22.5 19.25 DSDP INITIAL REPORTS 43 386 UPPER OLIGOCENE 155.9 166.3 NO AGE GIVEN NO AGE GIVEN 22.5 30 26.25 DSDP INITIAL REPORTS 43 386 MIDDLE OLIGOCENE 166.3 232.9 NO AGE GIVEN NO AGE GIVEN 29 32 30.5 DSDP INITIAL REPORTS 43 386 LOWER OLIGOCENE 251.9 284.9 NO AGE GIVEN NO AGE GIVEN 30 37.5 33.75 DSDP INITIAL REPORTS 43 386 UPPER EOCENE 284.9 290.0 NO AGE GIVEN NO AGE GIVEN 37.5 43 40.25 DSDP INITIAL REPORTS 43 386 UPPER EOCENE MIDDLE EOCENE 309.0 318.5 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 37.5 49 43.25 DSDP INITIAL REPORTS 43 386 MIDDLE EOCENE 328.0 480.3 NO AGE GIVEN NO AGE GIVEN 43 49 46 DSDP INITIAL REPORTS 43 386 LOWER EOCENE 480.3 606.8 NO AGE GIVEN NO AGE GIVEN 49 53.5 51.25 DSDP INITIAL REPORTS 43 386 UPPER PALEOCENE 606.8 612.9 NO AGE GIVEN NO AGE GIVEN 53.5 60 56.75 DSDP INITIAL REPORTS 43 386 MIDDLE PALEOCENE 632.0 632.5 NO AGE GIVEN NO AGE GIVEN 58 60 59 DSDP INITIAL REPORTS 43 386 UPPER CRETACEOUS 632.5 821.9 NO AGE GIVEN NO AGE GIVEN 65 100 82.5 DSDP INITIAL REPORTS 43 386 UPPER CRETACEOUS LOWER CRETACEOUS 821.9 831.4 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 65 135 100 DSDP INITIAL REPORTS 43 386 LOWER CRETACEOUS 831.4 964.2 NO AGE GIVEN NO AGE GIVEN 100 135 117.5 DSDP INITIAL REPORTS