Contrasting conditions of rift and off-rift silicic magma origin on Iceland

• Published in: Geophysical Research Letters
• Main Authors: Schattel, Nadine, Portnyagin, Maxim, Golowin, Roman, Hoernle, Kaj, Bindeman, Ilya
• Format: Article in Journal/Newspaper
• Language: English
• Published: AGU (American Geophysical Union) 2014
• Subjects: Askja; Hekla; Iceland
• Online Access: https://oceanrep.geomar.de/id/eprint/25485/; https://oceanrep.geomar.de/id/eprint/25485/1/Schattel%20et.al.pdf; https://doi.org/10.1002/2014GL060780

Factors controlling the origin of silicic magmas on Iceland are poorly constrained. Here we present new data on H2O content, pressure, temperature, oxygen fugacity, and oxygen isotope composition of rhyolites from Askja, Öræfajökull, and Hekla volcanoes. All these parameters correlate with tectonic...