Cosmo- and Geochemical Cycles and Balance For the Contents of Yttrium and/or Rare Earth Elements

  • Bärbel Sarbas
  • Wolfgang Töpper
Part of the Sc, Y, La - Lu. Seltenerdelemente. Rare Earth Elements book series (GMELIN, volume S-c... / A / 6 / b)

Abstract

Complete cosmo- and geochemical cycles for the behavior of RE and/or Y alone cannot be given without regard to their relation to other elements, or even to the behavior of major rock-forming elements. Some statements in the literature for RE and/or Y may have been obtained merely from analogy in view of its crystalchemical (diadochic) behavior and without direct investigation. To avoid a vast amount of information relevant only peripherically to these elements, the sections and paragraphs of this chapter will contain only data clearly derived for, or belonging to, the RE elements and/or Y. Especially the principal processes influencing their behavior in the natural cycles will be outlined. Further, there will be given preference to a discussion of information regarding the lithosphere (or mantle and crust) of the earth, for it is the main medium producing geochemical variation.

Keywords

crystaLLization Convection Geochemistry Dehydration Cretaceous 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1987

Authors and Affiliations

  • Bärbel Sarbas
  • Wolfgang Töpper

There are no affiliations available

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