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Research Article| April 01, 2016 Experimental Constraints on the Formation of Silicic Magmas Bruno Scaillet; Bruno Scaillet 1Institut des Sciences de la Terre d'Orléans, UMR 7327, CNRS-Université d'Orléans-BRGM1a rue de la Férollerie 45071, OrléansFranceE-mail:bruno.scaillet@cnrs-orleans.fr, pichavan@cnrs-orleans.fr Search for other works by this author on: GSW Google Scholar Francois Holtz; Francois Holtz 2Leibniz Universität Hannover, Institut für MineralogieCallinstrasse 3, 30167 Hannover, GermanyE-mail: f.holtz@mineralogie.uni-hannover.de Search for other works by this author on: GSW Google Scholar Michel Pichavant Michel Pichavant 1Institut des Sciences de la Terre d'Orléans, UMR 7327, CNRS-Université d'Orléans-BRGM1a rue de la Férollerie 45071, OrléansFranceE-mail:bruno.scaillet@cnrs-orleans.fr, pichavan@cnrs-orleans.fr Search for other works by this author on: GSW Google Scholar Author and Article Information Bruno Scaillet 1Institut des Sciences de la Terre d'Orléans, UMR 7327, CNRS-Université d'Orléans-BRGM1a rue de la Férollerie 45071, OrléansFranceE-mail:bruno.scaillet@cnrs-orleans.fr, pichavan@cnrs-orleans.fr Francois Holtz 2Leibniz Universität Hannover, Institut für MineralogieCallinstrasse 3, 30167 Hannover, GermanyE-mail: f.holtz@mineralogie.uni-hannover.de Michel Pichavant 1Institut des Sciences de la Terre d'Orléans, UMR 7327, CNRS-Université d'Orléans-BRGM1a rue de la Férollerie 45071, OrléansFranceE-mail:bruno.scaillet@cnrs-orleans.fr, pichavan@cnrs-orleans.fr Publisher: Mineralogical Society of America First Online: 09 Mar 2017 Online Issn: 1811-5217 Print Issn: 1811-5209 © 2016 by the Mineralogical Society of America Elements (2016) 12 (2): 109–114. https://doi.org/10.2113/gselements.12.2.109 Article history First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Bruno Scaillet, Francois Holtz, Michel Pichavant; Experimental Constraints on the Formation of Silicic Magmas. Elements 2016;; 12 (2): 109–114. doi: https://doi.org/10.2113/gselements.12.2.109 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyElements Search Advanced Search Abstract A rich history of experimental petrology has revealed the paths by which silicic igneous rocks follow mineral–melt equilibria during differentiation. Subdividing these rocks by ‘molar Al versus Ca + Na + K’ illustrates first-order differences in mineralogy and gives insight into formation mechanisms. Peraluminous magmas, formed by partial melting of sediments, largely owe their attributes and compositions to melting reactions in the protoliths, whereas most metaluminous felsic magmas record both continental and mantle inputs. Peralkaline rhyolites are mainly derived from either protracted crystallization or small degrees of partial melting of basalt, with only a marginal crustal contribution. Most silicic magmas hold 3–7 wt% H2Omelt, which is inversely correlated with pre-eruptive temperature (700 °C to >950 °C) but unrelated to their reduced/oxidized state. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.

Experimental Constraints on the Formation of Silicic Magmas