@misc{indiciae672dd867bc3c,
  title = {Evidence from Cd/Ca ratios in foraminifera for greater upwelling off California 4,000 years ago},
  author = {A. VanGeen and N. Luoma and C. C. Fuller and R. Anima and H.E. Clifton and S. Trumbore},
  year = {1992},
  doi = {10.1038/358054a0},
  url = {https://pubs.usgs.gov/publication/70017305},
  note = {Source identifier: 70017305}
}