| okcheon metamorphic belt, Korea: a metamorphic analogue of black shales in the South China block Received:...barite, uraninite, xenotime, armenite, zircon, molybdenite, and sphalerite. Large graphite–apatite ellipsoids...Andong National University, Andong, 760-749, South Korea e-mail: jearth@andong.ac.kr Tel.: +82-54-8205619...by the black shales in the South China Block. Keywords Black shale . Korea . Uranium . Vanadium . Barite...Ogcheon or Okchon) Metamorphic Belt (OMB) of South Korea, are thin beds that are rich in rare elements |
