Iron Isotopic Fractionation and Origin of Chromitites in the Paleo‐Moho Transition Zone of the Kop Ophiolite, NE Turkey

The Kop ophiolite in NE Turkey is a fragment of Neo‐Tethyan forearc. It can be mainly divided into a paleo‐Moho transition zone (MTZ) in the North and a harzburgitic mantle sequence in the South. Dunites are predominant in the MTZ of the Kop ophiolite, and they are locally interlayered with chromitites and enclose minor bodies of harzburgites near the petrological Moho boundary. Large Fe isotopic variations were observed for magnesiochromite...