THE ORIGIN OF HEMATITE IN HIGH-GRADE IRON ORES BASED ON INFRARED MICROSCOPY AND FLUID INCLUSION STUDIES: THE EXAMPLE OF THE CONCEIC?O MINE, QUADRIL?TERO FERR?FERO, BRAZIL

   Abstract:
      Petrographic and textural analysis combined with fluid inclusion studies by infrared microscopy of high-grade (>65% Fe) hematite ore samples from the Concei磯 deposit, in the northeastern part of the Quadrilᴥro Ferr

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