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 63 469 QUATERNARY 0.0 7.5 NO AGE GIVEN NO AGE GIVEN 0 1.8 0.9 DSDP INITIAL REPORTS 63 469 UPPER QUATERNARY 7.5 17.0 NO AGE GIVEN NO AGE GIVEN 0 0.8 0.4 DSDP INITIAL REPORTS 63 469 #PROV. MQUAT 17.0 26.5 NO AGE GIVEN NO AGE GIVEN 0 1.8 0.9 DSDP INITIAL REPORTS 63 469 LOWER QUATERNARY 26.5 40.7 NO AGE GIVEN NO AGE GIVEN 0.8 1.8 1.3 DSDP INITIAL REPORTS 63 469 UPPER PLIOCENE 40.7 74.0 NO AGE GIVEN NO AGE GIVEN 1.8 3.4 2.6 DSDP INITIAL REPORTS 63 469 PLIOCENE 74.0 83.5 A LEGITIMATE AGE INVERSION NO AGE GIVEN NO AGE GIVEN 1.8 5 3.4 DSDP INITIAL REPORTS 63 469 LOWER PLIOCENE 83.5 102.5 NO AGE GIVEN NO AGE GIVEN 3.4 5 4.2 DSDP INITIAL REPORTS 63 469 UPPER MIOCENE 102.5 169.0 NO AGE GIVEN NO AGE GIVEN 5 10.5 7.75 DSDP INITIAL REPORTS 63 469 MIDDLE MIOCENE 169.0 330.5 NO AGE GIVEN NO AGE GIVEN 10.5 16 13.25 DSDP INITIAL REPORTS 63 469 MIDDLE MIOCENE LOWER MIOCENE 330.5 368.5 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 10.5 22.5 16.5 DSDP INITIAL REPORTS 63 469 LOWER MIOCENE 387.0 396.0 NO AGE GIVEN NO AGE GIVEN 16 22.5 19.25 DSDP INITIAL REPORTS