Bayan Obo Controversy: Carbonatites versus Iron Oxide‐Cu‐Au‐(REE‐U)

  title={Bayan Obo Controversy: Carbonatites versus Iron Oxide‐Cu‐Au‐(REE‐U)},
  author={Chengyu Wu},
  journal={Resource Geology},
  • Chengyu Wu
  • Published 1 December 2008
  • Geology
  • Resource Geology
The Bayan Obo Fe‐REE‐Nb deposit is the world’s largest rare earth element (REE) resource and its genesis has been the subject of much debate for many years. The most popular are the carbonatite‐related and hydrothermal Fe oxide‐Cu‐Au‐(REE‐U) genetic models. Comparisons of geologic setting, lithology, mineral assemblages, metal associations, geochemistry (particularly REE and light REE/heavy REE ratios), fluid chemistry and isotopics indicate that the Bayan Obo deposit shares features of both… 

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