The distribution of trace elements in sulfides and magnetite from the Jaguar hydrothermal nickel deposit: Exploring the link with IOA and IOCG deposits within the Carajás Mineral Province, Brazil

•The Jaguar represents an atypical Ni deposit part of the Carajás IOCG system.•Trace elements in magnetite from the Jaguar deposit support a hydrothermal origin.•Pyrite and chalcopyrite have compositions that resemble IOA and IOCG deposits.•The Neoarchean mafic–ultramafic layered intrusions represent potential Ni sources.•Trace element results support that binary discriminant diagrams are not unequivocal.