Interpreted Property-Scale Igneous Rocks
Tags: arsenopyrite granite porphyry graphite illite kaolinite sill upper cretaceous

Category: Local map
Deposit: Donlin
Description:Note: RDA = Aphanitic Porphyry; RDX = Crowded Porphyry; RDXL = Lath-Rich Porphyry; and RDXB = Blue Porphyry. Figure courtesy Donlin Gold.