TY - DATA T1 - Petrogenesis and tectonomagmatic significance of Eocene mafic intrusions from the Neotethyan suture zone in the Muslim Bagh–Khanozai region, Pakistan PY - 2016/06/21 AU - Andrew C. Kerr AU - Owain Lavis AU - M. Ishaq Kakar AU - Iain McDonald UR - https://geolsoc.figshare.com/articles/dataset/Petrogenesis_and_tectonomagmatic_significance_of_Eocene_mafic_intrusions_from_the_Neotethyan_suture_zone_in_the_Muslim_Bagh_Khanozai___region_Pakistan/3454145 DO - 10.6084/m9.figshare.3454145.v1 L4 - https://ndownloader.figshare.com/files/5425091 L4 - https://ndownloader.figshare.com/files/5425094 L4 - https://ndownloader.figshare.com/files/5425097 KW - geochemical data KW - Eocene mafic intrusions KW - Neotethyan suture zone KW - Eurasian plates KW - ocean island basalt magmatism KW - Eocene Nisai Formation KW - mantle dynamics KW - suture zone KW - garnet lherzolite KW - tectonomagmatic significance KW - Pakistan New geochemical data KW - Supplementary materials KW - trace element compositions KW - lithospheric depths KW - field notes KW - alkalic intrusions KW - crystallization modelling KW - mafic intrusions KW - Geology N2 - New geochemical data for mafic intrusions within the Eocene Nisai Formation along the suture zone between the Indian and Eurasian plates are used to constrain their petrogenesis and assess the local tectonics and mantle dynamics. Petrological and geochemical data indicate that these alkalic intrusions have moderately enriched incompatible trace element compositions similar to ocean island basalt magmatism. Modelling suggests that these intrusions are the result of 1–5% melting of a deep, enriched, predominantly garnet lherzolite, with a small amount of subduction-derived fluids. These melts then underwent fractional crystallization at lithospheric depths of c. 30 km. Supplementary materials: Detailed information on each analysed sample including field notes and latitude and longitude, replicate analysis of standards, and fractional crystallization modelling are available at http://www.geolsoc.org.uk/SUP18893. ER -