Clays in Crustal Environments

1 An Introduction to Clay Minerals and Isotope Geochemistry.- 1 Fundamentals of Clay Mineralogy.- 2 Principles of Isotope Geochemistry.- 3 Specific Aspects of Clay Isotope Geochemistry.- 4 Summary.- 2 Isotope Geochemistry of Clay Minerals in Continental Weathering Environments.- 1 Clay Authigenesis in Soil Profiles.- 2 Clay Weathering and Alteration in Soils.- 3. Summary.- 3 Isotope Geochemistry of Clay Minerals in Young Continental and Oceanic Sediments.- 1 Recent Continental Erosional Debris and Clay Sediments.- 2 Terrigenous Clays in Young Ocean Basins.- 3 Authigenic Clays in Young Deep-Ocean Basins.- 4 Isotopic Evolution of Clays in Buried Deep-Ocean Sediments.- 5 Summary.- 4 Isotope Geochemistry of Clays and Clay Minerals from Sedimentary Rocks.- 1 Syndepositional Evolution of Clay Minerals in Argillaceous Sedimentary Rocks.- 2 Diagenetic Evolution of Clay Minerals in Deeply Buried Shales and Sandstones.- 3 Isotopic Records of Clay Diagenesis in Formation Waters.- 4 Summary.- 5 Isotope Geochemistry of Mica-Type Minerals from Low-Temperature Metamorphic Rocks.- 1 Isotope Geochemistry of Mica-Type Minerals in Different Metamorphic Environments.- 2 Isotope Geochemistry of Mica-Type Minerals Related to Metamorphic Rock Lithology.- 3 Isotope Geochemistry of Mica-Type Minerals Under Hydrothermal Conditions.- 4 Summary.- 6 The Frontiers of Clay Isotope Geochemistry.- 1 Isotope Geochemistry as a Dating Tool for Clay Minerals.- 2 Isotope Geochemistry as a Record of the Physical and Chemical Conditions of Clay Formation.- 3 Can Isotope Geochemistry Elucidate the Concept of Clay Genesis?.- References.

Clays and clay minerals are important for the reconstruction of weathering and abrasion processes of the Earth's crust. Dating of these processes is of major interest for sedimentologists, geomorphologists and soil scientists.