okcheon metamorphic belt, Korea: a metamorphic analogue of black shales in the South China block Received:...by either quartz–(Ba, V)–mica– graphite or Quartz-Ba-feldspar–graphite. Polycrystalline submillimeter...armenite, zircon, molybdenite, and sphalerite. Large graphite–apatite ellipsoids (nodules) with widths of several...metal abundances and a close association with graphite–apatite nodules and low-quality coal suggest that...Andong National University, Andong, 760-749, South Korea e-mail: jearth@andong.ac.kr Tel.: +82-54-8205619 |