Rare Earth Elements in Ultramafic and Mafic Rocks and their Minerals: Minor and Accessory Minerals

The book summarizes the world's literature on analytical data and theoretical concepts of the regularities of rare earth elements (REE) in minor and accessory minerals from different plutonic rocks of mafic-ultramafic and ultramafic-mafic massifs, from xenoliths in alkali basalts and kimberlites, and from other types of igneous rocks garnets, chrome-spinels, ilmenites, zircons, apatites, titanites, perovskites, micas. Much attention is given to a comparative analysis of the REE distribution in minerals from different types of massifs, complexes, and provinces. Various aspects of their intragranular and intermineral distribution are considered, and data on the coefficients of their partition between minerals and their parental melts as well as between coexisting minerals, are generalized. Probable schemes of REE isomorphism in rock-forming minerals are discussed. The overview is based on the results of the study of several hundred analyses of minerals, part of which was carried out with samples from author's collections. The geochemical correlation between REE and platinum group of elements is discussed in a special chapter. This book is intended for specialists in petrology and geochemistry of ultramafic, mafic, and other types of igneous rocks as well as students of geological departments of colleges and post-graduate students.