This unique addition to reference literature provides an introduction to the major concepts and contemporary issues that are essential for students of environmental science and environmental studies to know. With over 200 entries authored by world-class names like Anthony Brazel, John Day and Edward Keller, this text is divided into six sections: Environmental Science, Environments, Paradigms & Concepts, Processes & Dynamics, Scales & Techniques, and Environmental Issues.  

Geochemical Cycles

Geochemical cycles

Geochemical cycling is the study of chemical dynamics, interactions, and processes of the Earth's surface. An important component is biogeochemical cycling, chemical dynamics between living organisms and the environment. Many important chemical changes take place as rocks and soils are formed and changed through volcanic, weathering, and sedimentation processes. Diagenesis is the weathering of rocks and the formation of soils and sediments. The rock cycle is one of the important components of geochemical cycling. Basic rock types include igneous, sedimentary, and metamorphic and many geochemical changes take place as material cycles between these different rock types. The weathering and breakdown of rocks contributes to global silicon and carbon cycles. Soil formation, soil erosion and transport, and sediment deposition are important processes of geochemical ...

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