@misc{indiciaeda2acb8312ac,
  title = {Geothermal gradients in the conterminous United States},
  author = {M. Nathenson and M. Guffanti},
  year = {2012},
  doi = {10.1029/jb093ib06p06437},
  url = {https://pubs.usgs.gov/publication/70014113},
  note = {Source identifier: 70014113}
}