@misc{indiciae006525373ed1,
  title = {New interpretations of the stratigraphy and sedimentology of uppermost Jurassic to lowermost Upper Cretaceous strata in the San Juan Basin of northwestern New Mexico. X-ray diffraction studies of the <2-mu m fraction from the upper part of the Brushy Basin Member of the Upper Jurassic Morrison Formation and the Lower Cretaceous Burro Canyon Formation in the Four Corners area, Colorado},
  author = {William M. Aubrey and Gary L. Skipp},
  year = {1992},
  doi = {10.3133/b1808jk},
  url = {https://pubs.usgs.gov/publication/b1808JK},
  note = {Source identifier: b1808JK}
}