leg site hole core coretype section top interval bottom interval sample code head or vacutainer volume parameter id las name oxygen nitrogen methane carbon monoxide carbon dioxide ethylene ethane hydrogen sulfied propylene propane isobutate normal butane isopentane normal pentane isohexane normal hexane methane/ethane methane/ethane plus comments latitude longitude depth top interval depth below sea floor bottom interval depth below sea floor 104 642 D 004 Extended Core Barrel 05 135 140 HS Headspace techniques were used 5.0 GC1-50 0000022 67.22000 2.93000 0215.20 21654 21659 104 642 D 007 Extended Core Barrel 05 135 140 HS Headspace techniques were used 5.0 GC1-50 0000011 67.22000 2.93000 0244.20 24554 24559 104 642 D 010 Extended Core Barrel 05 135 140 HS Headspace techniques were used 5.0 GC1-50 0000006 67.22000 2.93000 0273.10 27445 27450 104 642 D 013 Extended Core Barrel 02 145 150 HS Headspace techniques were used 5.0 GC1-50 0000001 67.22000 2.93000 0297.70 29915 29920