Petrogenesis of Pyroxenites and Melt Infiltrations in the Ultramafic Complex of Beni Bousera, Northern Morocco

Alexander P. Gysi, Oliver Jagoutz, Max W. Schmidt, Kamal Targuisti
2011 Journal of Petrology  
2 O 3 , Na 2 O and CaO (magm. plag.); low FeO/ MgO and variable Al 2 O 3 , no MREE/ HREE fract. (metam. grt); pos. Eu and Sr anomalies (magm. Plag); neg. HFSE; Nb/Ta fract. high CaTs, Na and Al variations (cpx); Al-rich metam. sp; Mg-rich grt; slight fract. LREE and HREE to the MREE, pos. Eu and Sr anomaly, low HFSE (cpx); pos. Eu anomaly, low HREE (grt). metam. Grt and cpx Graphite pseudomorph after diamond garnet clinopyroxenites (PSD) show a similar band geometry and geochemistry to specific
more » ... emistry to specific IIIA garnet clinopyroxenites. Modal composition mineralogy consists of:
doi:10.1093/petrology/egr026 fatcat:2jlv4dhbtzaftbqb7sqsahaifq