Geochemical dataset of amphibole megacrysts and microphenocrysts hosted by lamprophyric dikes in southern New Zealand

Major/trace element compositions as well as Sr-Nd-Hf-Pb isotopic compositions of amphibole megacrysts hosted by intraplate lamprophyric magmatism in New Zealand (data from the Alpine Dike Swarm and Westland Dike Swarm). Detailed descriptions of methodologies are included in separate tab.