The geochemical evolution of the Gulfjellet Ophiolite Complex, west Norwegian Caledonides

dominantly NE-SW to E-W trending dykes, post-dates the N-MORB and lAT, and suggests formation in a fore-are setting. The occurrence of a few MORB-type dykes cutting boninite dykes may indicate formation of new oceanie erust, possibly associated with are splitting. The rare occurrence of post-MORB cale-alkaline magmatic aetivity may indicate a maturing stage of are magmatie activity.