Carbon and noble gas data from Costa Rica seeps

Abstract: Noble gas and carbon data were measured in cold seeps in Costa Rica in order to understand the sources of forearc fluids and processes acting to modify the geochemical signals. 2017 noble gases were measured on the Thermo SFT/Argus system at the University of Oxford. Helium and carbon was also measured at Scripps Institution of Oceanography (on pre 2017 samples) using MAP 215 and Thermo-Finnigan Delta XPPlus. The 2017 DIC measurements were done at the Earth-Life Science Institute, Tokyo Institute for Technology using an Agilent 6890N gas chromatograph attached to a Thermo-Finnigan Delta XPPlus.

Other Description: Barry, P.H. et al., (2019), "Forearc carbon sequestration reduces long-term volatile recycling into the mantle", Nature, submitted.