@misc{indiciaebc634158609f,
  title = {Opaline silica in young deposits on Mars},
  author = {Ralph E. Milliken and Gregg A. Swayze and Raymond E. Arvidson and Janice L Bishop and Roger N. Clark and Bethany L. Ehlmann and Robert O. Green and John P. Grotzinger and R.V. Morris and Scott L. Murchie and John F. Mustard and C. Weitz},
  year = {2008},
  doi = {10.1130/g24967a.1},
  url = {https://pubs.usgs.gov/publication/70194292},
  note = {Source identifier: 70194292}
}