The oceanic crust, covering two-thirds of the Earth's surface, is formed along mid-oceanic ridges by crystallization at shallow levels melts depth partial melting mantle peridotite. Yet, process melt transport to ridge axis remains poorly understood. Ophiolites, which provide a window into uppermost mantle, contain dunite bodies often interpreted as relics flow conduits, pyroxene dissolution du...

Dunites in ophiolites form by pyroxene dissolution and olivine precipitation during melt-peridotite interaction. We present structural geochemical data on peridotites from the Batin region (Wadi Tayin massif) of Oman ophiolite, where an exceptionally large (∼9.5 km long) dunite body was sampled ICDP Drilling Project (BA4A borehole). 900–1,200 m beneath petrological Moho, this is overlain harzbu...

The current research to study the petrography, mineralogy and geochemical relationships of ultramafic rocks in Galalah area within Erbil Governorate, at Unstable Shelf Imbricate Zone, determine origin rocks. Dunite Harzburgite are most abundant rock bodies area, they represent outer surface exposure aggregates. dunite characterized by pale brown color on altered that is broken into olive green ...