

Radiocarbon dating of groundwater containing microbial methane.
Keywords
east central Illinois;Illinoian;alkanes;methane;aliphatic hydrocarbons;Illinois;ground water;hydrocarbons;Pleistocene;upper Pleistocene;organic compounds;organic materials;United States;Cenozoic;Quaternary;geochronology;C 14;carbon;dates;isotopes;radioactive isotopes;C 13 C 12;stable isotopes;absolute age