This monograph was begun with two objectives in mind. The first was to provide a review of research involving the application of neodymium isotopic measurements to pro blems in earth science. In the process of organizing to do this, I realized that the research in this field had produced a need for an updated review of the underlying paradigms. This need had arisen because of the special properties of the samarium-neodymium isotopic system, and because the research had transgressed the traditional boundaries be tween the subfields of earth science. Without such a review, the significance of the results seemed likely to remain un necessarily obscure to interested scientists from related disciplines. Consequently, the second objective became the provision of a theoretical framework for the application of neodymium isotopic studies. Much of what this contains is not new, but it is drawn together here for the first time. At the time the writing was initiated, the literature of the field was still relatively limited. Over the past 5 years it has grown enormously. Considering the rate at which the writing progressed, it became clear that this could not be a fully up-to-date review and still reach completion. The selection of material for the review sections is biased toward earlier studies. Part I presents most of the background information.

Klappentext

This review of the rapidly expanding field of Samarium - Neodymium isotopic studies in the earth sciences covers topics relating to planetary evolution, igneous petrology and geochemistry, mantle dynamics, and continental tectonics. In addition to a review of research, Neodymium Isotope Geochemistry describes its theoretical and empirical basis, presents new interpretations and models, and provides general background information in isotopic geochemistry. Textbook-style early chapters combined with chapters emphasizing applications and results yield a handbook of Neodymium Isotope Geochemistry which serves as a comprehensive introduction to the field. It will be invaluable to researchers, graduate and advanced undergraduate students in earth sciences, researchers from related fields, teachers of advanced geochemistry and petrology, and experts seeking a general review or a departure point for further research. Relevant research is critically reviewed and the results are placed in context within unifying general models for earth processes and structure.

Inhalt
I Principles and Processes.- 1 Introduction.- 2 Sm-Nd Dating.- 3 Nd Isotopes as Tracers in Planetary Evolution.- 4 Igneous Processes and Nd Isotopic Variations.- II Nd Isotopic Variations A Planetary Perspective.- 5 Overview of Nd Isotopic Variations.- 6 Correlation of Nd Isotopic Variations with Other Isotopic Variations.- 7 Models of Crust-Mantle Evolution.- III Nd Isotopic Variations Petrogenetie Studies.- 8 Oceanic Crust and Mantle.- 9 Continental Magmatic Arcs.- 10 Continental Mafic Rocks.- References.