This book investigates the geochemical behavior and distribution of rare earth elements (REEs) in geological systems. It aims to provide a comprehensive understanding of how REEs are incorporated into minerals and rocks, and how their patterns can be used to decipher geological processes.

The book is regarded as a foundational text in rare earth element geochemistry, often cited in academic research. Its detailed approach and comprehensive coverage make it a valuable resource for advanced students and researchers in geology and geochemistry. The work is recognized for its rigorous scientific treatment of the subject matter.