Porphyry deposits are the world’s largest repository of Cu, comprising 65% of the global Cu resource. On a global scale, porphyry Cu deposits appear to be most abundant in areas where convergent plate boundaries are segmented and the subducting slab is torn. The combination of active subduction and a rich metal endowment means that Papua New Guinea can serve as an ideal natural laboratory to study the effects of slab tearing on ore deposit formation. In fact, several of New Guinea’s Pliocene-Quaternary giant and supergiant Cu-Au porphyry deposits, together with numerous Pleistocene volcanoes, appear to coincide with prominent lineaments oblique to the plate boundary. This PhD project aims to test the hypothesis that spatial distribution of these volcanoes and porphyry deposits is, at least in part, controlled by Pliocene-Quaternary slab tearing.

Funding: Research Training Program
Advisors: Associate Professor Gideon Rosenbaum, Dr Teresa Ubide

Project members

Jack WARD

PhD Candidate