Geochemical Facies Analysis

Book excerpt: Methods in Geochemistry and Geophysics 11: Geochemical Facies Analysis summarizes research regarding geochemical analysis of sedimentary facies. It demonstrates the extent to which geochemical criteria can be used to interpret sedimentary facies and considers the physicochemical criteria that affect the sediments deposited, including salinity, temperature, and redox potential. It also examines element or isotope variations in sedimentary rocks that are associated with variations in the depositional environment. Organized into seven chapters, this volume begins by defining the facies. It also presents the prerequisites of geochemical facies analysis. This includes the permanence of the composition of the oceans through long periods of the Earth's history, along with climatic, tectonic, and biological influences. The book then discusses methodological prerequisites for the determination of geochemical facies. It provides the results of geochemical facies analyses, including those for hydrofacies, lithofacies, and biofacies. In addition, it explains the non-chemical methods of facies analysis. The book concludes by looking at practical applications and future importance of geochemical facies analysis. This is an invaluable source book for students, geochemists, and geophysicists.