@misc{indiciae2af37ff0de8f,
  title = {Ultra-deep oxidation and exotic copper formation at the late pliocene boyongan and bayugo porphyry copper-gold deposits, surigao, philippines: Geology, mineralogy, paleoaltimetry, and their implications for Geologic, physiographic, and tectonic controls},
  author = {D.P. Braxton and D. R. Cooke and A.M. Ignacio and R. O. Rye and P.J. Waters},
  year = {2009},
  doi = {10.2113/gsecongeo.104.3.333},
  url = {https://pubs.usgs.gov/publication/70034836},
  note = {Source identifier: 70034836}
}