@misc{indiciae3b98e7835245,
  title = {Distribution of fine-scale mantle heterogeneity from observations of Pdiff coda},
  author = {P.S. Earle and P.M. Shearer},
  year = {2001},
  doi = {10.1785/0120000285},
  url = {https://pubs.usgs.gov/publication/70023499},
  note = {Source identifier: 70023499}
}