Multistage Gold Mineralization at The Wanagon Gold Prospect, Ertsberg District, Mimika Regency, Papua Province, Indonesia

DOI:10.17014/ijog.9.3.279-290 The Wanagon Gold prospect area located in the Ertsberg District, Papua Province, eastern part of Indonesia, is predominantly underlain by Upper Mesozoic to Cenozoic sedimentary rocks intruded Sill monzodiorite-diorite and andesite intrusion (Wanagon Dike). study previous researchers at was based on pre-2005 exploration data did not contain extensive additional drillings 2007-2011. This paper aims elucidate genesis deposits latest data. mineralogy determined using thin section polish analyses, a scanning electron microscope with an energy dispersive spectrometer (SEM-EDS), X-ray diffraction (XRD), Near-Infrared spectroscopy (NIR). chemical composition rock identified fluorescence (XRF). mineralization associated pyrite, which there are three types gold-bearing pyrite: (1) massive (2) disseminated (3) fine-grained pyrite clay minerals. Only contains visible minerals such as native gold, electrum, gold-telluride minerals, while nonmassive gold only detected assay. deposit interpreted structurally controlled distal skarn. Instead, its local association arsenic also indicates minor component more-distal sediment-hosted type mineralization.