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 68 503 B UPPER PLEISTOCENE 0.0 11.6 NO AGE GIVEN NO AGE GIVEN 0.01 0.7 0.355 DSDP INITIAL REPORTS 68 503 B PLEISTOCENE 11.6 24.8 NO AGE GIVEN NO AGE GIVEN 0.011 1.8 .9055 DSDP INITIAL REPORTS 68 503 B PLEISTOCENE UPPER PLIOCENE 24.8 29.2 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 0.011 3.4 1.706 DSDP INITIAL REPORTS 68 503 B UPPER PLIOCENE 29.2 33.6 NO AGE GIVEN NO AGE GIVEN 1.8 3.4 2.6 DSDP INITIAL REPORTS 68 503 B PLEISTOCENE 38.0 39.2 A LEGITIMATE AGE INVERSION NO AGE GIVEN NO AGE GIVEN 0.011 1.8 .9055 DSDP INITIAL REPORTS 68 503 B UPPER PLIOCENE 39.2 60.0 NO AGE GIVEN NO AGE GIVEN 1.8 3.4 2.6 DSDP INITIAL REPORTS 68 503 B UPPER PLIOCENE LOWER PLIOCENE 60.0 64.4 NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 1.8 5 3.4 DSDP INITIAL REPORTS 68 503 B LOWER PLIOCENE 64.4 112.8 NO AGE GIVEN NO AGE GIVEN 3.4 5 4.2 DSDP INITIAL REPORTS