@misc{indiciae6ac33d20ee69,
  title = {18O 16O ratios in cherts associated with the saline lake deposits of East Africa},
  author = {J. R. O’Neil and R. L. Hay},
  year = {1973},
  doi = {10.1016/0012-821x(73)90126-x},
  url = {https://pubs.usgs.gov/publication/70010292},
  note = {Source identifier: 70010292}
}