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 87 583 UPPER QUATERNARY 0.0 40.9 NO AGE GIVEN NO AGE GIVEN 0 0.8 0.4 INITIAL CORE DESCRIPTIONS 87 583 #PROV. MQUAT 40.9 92.0 NO AGE GIVEN NO AGE GIVEN 0 1.8 0.9 INITIAL CORE DESCRIPTIONS 87 583 UPPER QUATERNARY LOWER QUATERNARY 92.0 97.0 A LEGITIMATE AGE INVERSION NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 0 1.8 0.9 INITIAL CORE DESCRIPTIONS 87 583 #PROV. MQUAT 97.0 102.0 A LEGITIMATE AGE INVERSION NO AGE GIVEN NO AGE GIVEN 0 1.8 0.9 INITIAL CORE DESCRIPTIONS 87 583 UPPER QUATERNARY LOWER QUATERNARY 107.0 150.0 A LEGITIMATE AGE INVERSION NO AGE GIVEN NO AGE GIVEN NO AGE GIVEN 0 1.8 0.9 INITIAL CORE DESCRIPTIONS