Principles of geochemistry / Принципы геохимии

This book is designed to be used as an introduction to geochemistry by undergraduate and graduate chemistry and geology students as well as by those from other sciences. It summarizes the significant facts and ideas concerning the chemistry of the earth and synthesizes these data into an account of the physical and chemical evolution ol the earth. The aim of the book is to explore an intlresting, complex, and changing subject. An attempt has !'een made to cover the entire field of geochemistry. However, not alI subjects have been coveredwith equal detail becauseto properly cover the facts and theories would require a volume far too long to be suitably used as a text. Some areas of geochemical interest such as phase diagrams and ore deposits have been adopted by other courses in thc geology curriculum. and thermodynamics, a key to understanding geochemical processes, requires the depth of presentation given in physical chemistry courses. <...>