@misc{indiciaed7a280330900,
  title = {Weathering of the New Albany Shale, Kentucky, USA: I. Weathering zones defined by mineralogy and major-element composition},
  author = {M.L.W. Tuttle and G. N. Breit},
  year = {2009},
  doi = {10.1016/j.apgeochem.2009.04.021},
  url = {https://pubs.usgs.gov/publication/70036976},
  note = {Source identifier: 70036976}
}