@misc{indiciae9067a1e4c333,
  title = {Geology, tephrochronology, radiometric ages, and cross sections of the Mark West Springs 7.5' quadrangle, Sonoma and Napa counties, California},
  author = {R. J. McLaughlin and A.M. Sarna-Wojcicki and R.J. Fleck and W.H. Wright and V.R.G. Levin and Z. C. Valin},
  year = {2004},
  doi = {10.3133/sim2858},
  url = {https://pubs.usgs.gov/publication/sim2858},
  note = {Source identifier: sim2858}
}