@misc{indiciae37787367997e,
  title = {Chemical characteristics of oceanic basalts and the upper mantle},
  author = {A.E.J. Engel and Celeste G. Engel and R.G. Havens},
  year = {1965},
  doi = {10.1130/0016-7606(1965)76[719:ccooba]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70221206},
  note = {Source identifier: 70221206}
}