Davies, R. Charlie, and Williams, Patrick J. (2005) The El Galeno and Michiquillay porphyry Cu–Au–Mo deposits: geological descriptions and comparison of Miocene porphyry systems in the Cajamarca district, northern Peru. Mineralium Deposita, 40 (5). pp. 598-616.

Davies, R.C.I, and Williams, P.J. (2003) Tectonomagmatic evolution and controls on formation of significant miocene porphyry Cu-Au-Mo deposits and the giant Yanacocha Au deposit, northern Peru. Applied Earth Science, 112 (2). pp. 200-202.

Davies, Richard Charles Idris (2002) Tectonic, magmatic and metallogenic evolution of the Cajamarca mining district, Northern Peru. PhD thesis, James Cook University.