Petrography of mantle peridotites from Mersin ophiolite, Turkey

Abstract

We have been able to get information of the arc upper mantle (petrographical features and processes) but they are limited to from relatively small (< 1 m) peridotite xenoliths, enclosed by arc magma, and then spatial variations and whole view of the mantle wedge are poorly understood. We examined the petrographical and geochemical features of the ultramafic rocks from the Mersin ophiolite, possible supra-subduction zone origin (e.g., Parlak et al., 1995). The mantle peridotite is highly depleted spinel harzburgite and olivine-replacing orthopyroxene is rarely observed.