Geochemical characterization and petrogenesis of intermediate to silicic rocks in ophiolites: A global synthesis

We present a global synthesis of the geochemistry of intermediate to silicic intrusive and volcanic rocks from 149 Phanerozoic to Archean ophiolites, and evaluate models for their genesis during the development of oceanic crust in different tectonic environments. Our synthesis shows that the evolved rocks in subduction-unrelated, Rift/Continental Margin ophiolites are predominantly basaltic andesite and andesite, whereas MOR type (mid-ocean...