Studies of the element contents and isotopic characteristics sulfide minerals from seafloor hydrothermal deposits are a significant method investigating seawater-fluid mixing fluid-rock and/or sediment interactions in systems. The ores Noho field (NHF) Okinawa Trough (OT) consist pyrrhotite, isocubanite, sphalerite, galena, amorphous silica. Rh, Ag, Sb, Tl mostly increase galena as fluid temper...