@misc{indiciae7eab51c71a3d,
  title = {Zircon fission-track ages of Pearlette family ash beds in Meade County, Kansas},
  author = {C. W. Naeser and Glen A. Izett and Ray E. Wilcox},
  year = {1973},
  doi = {10.1130/0091-7613(1973)1<187:zfaopf>2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70241537},
  note = {Source identifier: 70241537}
}