Protracted magmatism during the formation of the Rogaland anorthosite Province, Norway: Implications for the tectonic setting and the formation of Fe-Ti-P deposits
Eduardo Mansur·Gürli B. Meyer·Sarah Dare·Alf André Orvik·Trond Slagstad·Nolwenn Coint·Henrik Schiellerup·Magdalena H. Huyskens
• Zircon U-Pb ages from the RAP (950–910 Ma) support protracted magmatic activity. • Zircon grains from anorthosites come from light-coloured rims around the HAOMs. • Hf isotopes (εHf i = -4.1 to + 5.5) support mixed mantle and crustal contributions. • Progressively more juvenile Hf isotopic signatures are found in younger intrusions. • The RAP formed in an extensional setting with sustained mafic underplating. The Rogaland Anorthosite Province (RAP) in Norway is an important locality for better