Controls of Melt Genesis and Evolution at Buldir Volcano in the Western Aleutian Island Arc

• Main Author: Arndt, Shawn
• Format: Text
• Language: unknown
• Published: Scholar Commons 2011
• Subjects: Aleutians; Amphibole; Buldir; Mixing; Volcano; Water; Earth Sciences; Geology; Physical Sciences and Mathematics; Buldir Volcano; Aleutian Island
• Online Access: https://scholarcommons.sc.edu/etd/1318; https://scholarcommons.sc.edu/context/etd/article/2319/viewcontent/Arndt_sc_0202M_11583.pdf

The geochemistry of western Aleutian seafloor volcanoes indicates that primitive dacitic lavas (63-71% SiO2, Mg/Mg+Fe > 0.65) containing low abundances of middle and heavy rare-earth elements (Yb) were probably produced by melting of an isotopically MORB-like (e.g., 87Sr/86Sr < 0.7027) pyroxen...