The Role of Volatiles in the Genesis, Evolution and Eruption of Arc Magmas

Download or read book The Role of Volatiles in the Genesis, Evolution and Eruption of Arc Magmas written by G.F. Zellmer and published by Geological Society of London. This book was released on 2015-03-17 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: The subduction zone volatile cycle is key to understanding the petrogenesis, transport, storage and eruption of arc magmas. Volatiles control the flux of slab components into the mantle wedge, are responsible for melt generation through lowering the solidi of mantle materials and influence the crystallizing phase assemblages in the overriding crust. Further, the rates and extents of degassing during magma storage and decompression affect magma rheology, ultimately control eruption style and have consequences for the environmental impact of explosive arc volcanism. This book highlights recent progress in constraining the role of volatiles in magmatic processes. Individual book sections are devoted to tracing volatiles from the subducting slab to the overriding crust, their role in subvolcanic processes and eruption triggering, as well as magmatic-hydrothermal systems and volcanic degassing. For the first time, all aspects of the overarching theme of volatile cycling are covered in detail within a single volume.