Recent Advances in the Rare Earth Elements
β Scribed by ELEY, D. D.
- Book ID
- 109638399
- Publisher
- Nature Publishing Group
- Year
- 1964
- Tongue
- English
- Weight
- 264 KB
- Volume
- 204
- Category
- Article
- ISSN
- 0028-0836
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## Abstract The rare earth element (REE) concentrations of the dissolved and particulate fractions and bed sediment between Manaus and SantarΓ©m in the Amazon River, and in some major tributaries, were evaluated. A very important zone in the Amazon basin, the βencontro das aguasβ area where the Rio
The samples from alpine peridotite massifs (Beni Bouchera, Lherz and the Alps) have been analyzed for rare earth elements. The peridotites as a whole are characterized by various degrees of light REE depletion (Ce varies from 1.2 to 0.02 times chondrite) and a small variation in heavy REE (Yb varies