Volume 21 of Reviews in Mineralogy treats a short course on the rare earth elements to about 80 participants in San Francisco, California, December 1-3, 1989, just prior to the fall meeting of the American Geophysical Union.

Contents:

Cosmochemistry of the Rare Earth Elements: Condensation and Evaporation Processes

Radiogenic Isotope Geochemistry of Rare Earth Elements

Partitioning of Rare Earth Elements between Major Silicate Minerals and Basaltic Melts

An Approach to Trace Element Modeling Using a Simple Igneous System as an Example

Rare Earth Elements in Upper Mantle Rocks

Rare Earth Elements in Metamorphic Rocks

Rare Earth Elements in Sedimentary Rocks: Influence of Provenance and Sedimentary Processes

Aqueous Geochemistry of Rare Earth Elements

Rare Earth Elements in Lunar Materials

Compositional and Phase Relations among Rare Earth Element Minerals

Economic Geology of Rare Earth Minerals

Cathodoluminescence Emission Spectra of Rare Earth Element Activators in Minerals