@misc{indiciaefe9e429ee572,
  title = {Unsuccessful initial search for a midmantle chemical boundary with seismic arrays},
  author = {J.E. Vidale and G. Schubert and P.S. Earle},
  year = {2001},
  doi = {10.1029/2000gl012428},
  url = {https://pubs.usgs.gov/publication/70023962},
  note = {Source identifier: 70023962}
}