Evolution of Galapagos magmas: mantle and crustal fractionation without assimilation

tematically different depths in the crust and mantle, which results Studies of lavas from the Galápagos archipelago have in strikingly different volcano morphologies. Every Galápagos volcano shown that much of their geochemical diversity results has erupted some lavas that are saturated with olivine+ plagioclase from mantle processes. Specifically, isotopic and trace + augite, especially those magmas with MgO <6 wt %. Magmas and major element compositions of the basalts indicat