@misc{indiciae20e380336e4d,
  title = {Composition of biotite phenocrysts in Ordovician tephras casts doubt on the proposed trans-Atlantic correlation of the Millbrig K-bentonite (United States) and the Kinnekulle K-bentonite (Sweden)},
  author = {John T. Haynes and W.G. Melson and Michael J. Kunk},
  year = {1995},
  doi = {10.1130/0091-7613(1995)023<0847:cobpio>2.3.co;2},
  url = {https://pubs.usgs.gov/publication/70207653},
  note = {Source identifier: 70207653}
}