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 107 656 A 002 Rotary 06 000 001 HS Headspace techniques were used 5.0 GC1-50 B656A2R60HSA 0000000 0000000 0000000 40.18437 12.18383 0119.70 11969 11970 107 656 A 004 Rotary 03 000 001 HS Headspace techniques were used 5.0 GC1-50 0000004 40.18437 12.18383 0134.30 13430 13431