@misc{indiciaeaf6eb02d2828,
  title = {Authigenic kaolinite and associated pyrite in chalk of the Cretaceous Niobrara Formation, Eastern Colorado},
  author = {R. M. Pollastro},
  year = {1981},
  doi = {10.1306/212f7cd4-2b24-11d7-8648000102c1865d},
  url = {https://pubs.usgs.gov/publication/70012148},
  note = {Source identifier: 70012148}
}