Seoul National University · 地球惑星科学
Professor Jung-Woo Park's research lab specializes in geochemistry, with a focus on the petrogenesis of metal-rich magmas and the origin of porphyry copper-gold deposits. The lab investigates chalcophile element behavior, platinum group elements (PGEs), and trace element partitioning in magmatic systems, particularly in arc and intraplate volcanic settings. Using advanced analytical techniques such as LA-ICP-MS and NiS fire assay with isotope dilution, the lab explores the controls on PGE and chalcophile element enrichment in magmas, minerals (e.g., Cr-spinel), and crustal materials like loess. Their work contributes to understanding the formation mechanisms of economically significant hydrothermal ore deposits.
Figures are computed from collected data and may differ slightly.
Magmas enriched in Cu and Au are likely to be the most prospective for magmatic–hydrothermal deposits of these metals. However, the mechanism that leads to the formation of metal-rich magmas is not well constrained. We report major, trace and platinum group element (PGE) data for the Niuatahi–Motutahi lavas, Tonga rear arc, with the aim of studying their petrogenesis with special emphasis on the evolution of chalcophile elements during magmatic differentiation. Major and trace element contents,
Platinum group element (PGE) abundances in the upper continental crust (UCC) are poorly constrained with published values varying by up to an order of magnitude. We evaluated the validity of using loess to estimate PGE abundances in the UCC by measuring these elements in seven Chinese loess samples using a precise method that combines NiS fire assay with isotope dilution. Major and trace elements of the Chinese loess show a typical upper crustal composition and PGE abundances are consistent with
Chalcophile element fertility, the chalcophile metal abundance in the source magma, is likely to be a critical factor for the formation of porphyry Cu ± Au deposits. In this study, we provide evidence to support this hypothesis by comparing the platinum group element (PGE) geochemistry of barren and ore-bearing Cu ± Au granitic suites. We report the PGE contents of three barren volcanic and subvolcanic suites from Argentina and Japan and two Cu ± Au bearing suites from Indonesia and Chile. These
Recent experimental studies and in situ LA-ICP-MS analysis on natural Cr-spinel have shown that Rh and IPGEs (Ir-group platinum group elements: Ru, Ir, Os) are enriched in the lattice of Cr-spinel. However, the factors controlling the partitioning behaviour of these elements are not well constrained. In this study, we report the Rh, IPGE, and trace element contents in primitive Cr-spinel, measured by LA-ICP-MS, from nine volcanic suites covering various tectonic settings including island arc pic
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