@misc{indiciae3ec739c24ec7,
  title = {Strontium isotope evidence for the age of the Vaqueros Formation and latest Oligocene marine transgression in the northern Santa Maria Province, Central California. Stratigraphic sections and gamma-ray spectrometry from five outcrops of the Monterey Formation in southwestern California; Naples Beach, Point Pedermales, Lion's Head, Shell Beach, and Point Buchon},
  author = {Margaret A. Keller and Marilyn E. Tennyson and Rodger E. Denison and Jon R. Schwalbach and Kevin M. Bohacs},
  year = {1995},
  doi = {10.3133/b1995pq},
  url = {https://pubs.usgs.gov/publication/b1995PQ},
  note = {Source identifier: b1995PQ}
}