@misc{indiciae53178a666e77,
  title = {Methanogenic calcite, 13C-depleted bivalve shells, and gas hydrate from a mud volcano offshore southern California},
  author = {J.R. Hein and W. R. Normark and B.R. McIntyre and T.D. Lorenson and C.L. Powell},
  year = {2006},
  doi = {10.1130/g22098.1},
  url = {https://pubs.usgs.gov/publication/70030936},
  note = {Source identifier: 70030936}
}