@misc{indiciae2cac0fc342be,
  title = {Geochemistry and mineralogy of late Quaternary loess in the upper Mississippi River valley, USA: Provenance and correlation with Laurentide Ice Sheet history},
  author = {Daniel R. Muhs and E. Arthur Bettis and Gary L. Skipp},
  year = {2018},
  doi = {10.1016/j.quascirev.2018.03.024},
  url = {https://pubs.usgs.gov/publication/70196430},
  note = {Source identifier: 70196430}
}