@misc{indiciaed835ebae705f,
  title = {Emplacement and differentiation of the york haven diabase sheet, Pennsylvania},
  author = {M. T. Mangan and B.D. Marsh and A.J. Froelich and D. Gottfried},
  year = {1993},
  doi = {10.1093/petrology/34.6.1271},
  url = {https://pubs.usgs.gov/publication/70207413},
  note = {Source identifier: 70207413}
}