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The book summarizes the knowledge and experiences concerning the role of halogens during various geochemical processes, such as diagenesis, ore-formation, magma evolution, metasomatism, mineralization, and metamorphism in the crust and mantle of the Earth. It comprises the role of halogens in other terrestrial worlds like volatile-rich asteroids, Mars, and the ice moons of Jupiter and Saturn. Review chapters outline and expand upon the basis of our current understanding regarding how halogens contribute to the geochemical/geophysical evolution and stability of terrestrial worlds overall.

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The Role of Halogens in Terrestrial and Extraterrestrial Geochemical Processes: Surface, Crust, and Mantle.- Halogens in Terrestrial and Cosmic Geochemical Systems: Abundances, Geochemical Behaviors, and Analytical Methods.- Halogen-Rich Minerals: Crystal Chemistry and Geological Significances.- Halogen Elements in Sedimentary Systems and their Evolution During Diagenesis.- Halogen Geochemistry of Ore Deposits: Contributions Towards Understanding Sources and Processes.- Halogens in Mafic and Intermediate-Silica Content Magmas.- Halogens in Silicic Magmas and their Hydrothermal Systems.- The Behavior of Halogens during Subduction-Zone Processes.- Halogens in Seawater, Marine Sediments and the Altered Oceanic Crust and Lithosphere.- The Role of Halogens during Regional and Contact Metamorphism.- Halogens in High-Grade Metamorphism.- Halogens in Hydrothermal Fluids and their Role in the Formation and Evolution of Hydrothermal Mineral Systems.- The role of Halogens in the Lithospheric Mantle.- Halogens in the Earth´s Mantle: What we know and what we don´t.- Halogens in Chondritic Meteorites.- The role of Halogens During Fluid and Magmatic Processes on Mars.- Halogens on and within the Ocean Worlds of the Outer Solar System.

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Dr. Daniel Harlov, GFZ Potsdam, Germany
Dr. Leonid Aranovich; IGEM RAS, Moscow, Russia

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