B. J. Barron

Quenched Inclusions in Uralian-Alaskan Placer Pt-Fe Nuggets, Ecuador: Rare Cu-PGM Telluride-Sulfide Parageneses

PGM (platinum-group mineral) melt inclusions set in two Pt-Fe alloy nuggets are from the Camumbi River placer, Ecuador. Inclusion bulk compositions are strongly fractionated, mutually exsolved melts Pt–Rh–Pd–Cu > Fe–Ni sulfide-rich and Pt–Cu–Rh ≈ Pd > Fe–Ni telluride-rich respect...