Methane concentration and radiocarbon content data from seeps in the Northern Gulf of Mexico

This dataset accompanies the manuscript "Deep Gulf of Mexico seeps are not a significant source of methane to the atmosphere" by Joung et al., in press at Communications: Earth and Environment. It contains measurements of methane concentration and radiocarbon content in the water column at a number of seep sites and background stations in the Northern Gulf Mexico. See manuscript for full methodological details.