Jung-Woo Park (Associate Professor, Seoul National University, Republic of Korea) will present at the InterRidge Webinar on Thursday. The title of the talk is:
Chalcophile element geochemistry of arc-related submarine lavas associated with seafloor massive sulfide deposits
There are two principal hypotheses for the origin of metals in seafloor massive sulfide (SMS) deposits, the wall-rock leaching and magmatic-hydrothermal hypothesis. In the former, the metals are leached from the wall rocks above a sub-volcanic magma chamber, whereas the latter requires them to be deposited from magmatic fluids derived from an underlying magma chamber. The SMS deposits forming at arc volcanos or immature back-arc spreading centers are considered to have more magmatic fluid components than those at mid-ocean ridges spreading centers. Therefore, the abundance of ore metals in the magma at the time of volatile exsolution maybe a critical factor for the formation of a Cu-Au-rich SMS deposit in arc-related settings. Here, I will present the chalcophile element geochemistry of several volcanic suites associated with SMS deposits and discuss the role of chalcophile element fertility on the formation of SMS deposits.
He is an igneous petrologist and marine geologist. He has spent much of his career in the study of magmatism at subduction zones and mid-ocean ridges. The chalcophile element behavior during igneous processes and associated magmatic-hydrothermal mineralization are the main research interest. His Ph.D on platinum group element geochemistry of arc-related magmas at Australian National University found fundamental information on the behavior of chalcophile elements in the evolved arc magmas, which has been continued at Seoul National University. He is currently investigating the role of magma fertility (chalcophile metal contents in magma) on the formation of porphyry Cu±Au deposits.
You can find the meeting details on the Interridge website