Geochemistry of Main Gangue Minerals at the Sangdong Tungsten Deposit

상동(上東) 중석광상(重石鑛床)의 주맥석(主脈石) 광물(鑛物)에 대(對)한 지화학(地化學)

Microprobe analyses have disclosed geochemical compositions of the main components such as garnet, pyroxene, amphibole, chlorite, biotite, and muscovite in the Sangdong W skarn deposit and this study has identified several minerals which were previously unrecorded from this deposit; they are scapolite, zeolite, K-feldspar, rutile. illite and apophyllite. The $Fe^{+3}/Fe^{+2}$ or Mg/(Mg+Fe) ratios of coexisting minerals represents that these minerals were partially in equilibrium.