Methane sources, distributions, and fluxes from cold vent sites at Hydrate Ridge, Cascadia Margin

@article{Heeschen2005MethaneSD,
  title={Methane sources, distributions, and fluxes from cold vent sites at Hydrate Ridge, Cascadia Margin},
  author={K. Heeschen and R. J. Collier and M. A. D. Angelis and E. Suess and G. Rehder and P. Linke and G. Klinkhammer},
  journal={Global Biogeochemical Cycles},
  year={2005},
  volume={19}
}
  • K. Heeschen, R. J. Collier, +4 authors G. Klinkhammer
  • Published 2005
  • Geology
  • Global Biogeochemical Cycles
  • To constrain the fluxes of methane (CH4) in the water column above the accretionary wedge along the Cascadia continental margin, we measured methane and its stable carbon isotope signature (δ13C-CH4). The studies focused on Hydrate Ridge (HR), where venting occurs in the presence of gas-hydrate-bearing sediments. The vent CH4 has a light δ13C-CH4 biogenic signature (−63 to −66‰ PDB) and forms thin zones of elevated methane concentrations several tens of meters above the ocean floor in the… CONTINUE READING
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