Contents lists available at ScienceDirect Chemie der Erde journal homepage: www.elsevier.com/locate/chemer Iron oxide copper-gold (IOCG) mineralization at the Imiter inlier, Eastern Anti-Atlas, Morocco Bouchra Baidada a, ⁎ , Abdelkhalek Alansari a , Basem Zoheir b,c , Said Ilmen d , Abderrahmane Soulaimani a , Moha Ikenne e a Department of Geology, Faculty of Sciences-Semlalia, Cadi Ayyad University, Prince Moulay Abdellah Boulevard, P.O. Box 2390, 40 000, Marrakech, Morocco b Department of Geology, Faculty of Science, Benha University, 13518, Benha, Egypt c Institute of Geosciences, Kiel University, Ludewig-Meyn Str. 10, 24118, Kiel, Germany d Managem Group, Twin Center, 20 100, Casablanca, Morocco e LAGAGE Laboratory, Department of Geology, Faculty of Sciences, Ibn Zohr University, P.O. Box 28/S, 80 000, Agadir, Morocco ARTICLE INFO Handling Editor: Astrid Holzheid Keywords: Bou Fliou IOCG deposit Magnetite-hematite Granodiorite Geochemistry Imiter inlier Anti-Atlas Morocco ABSTRACT The Imiter inlier at the eastern Anti-Atlas chain (Morocco) hosts a world-class epithermal Ag-Hg deposit, and several occurrences of sulfide-magnetite mineralization. These occurrences are confined to transcurrent faults that cut mildly to highly potassic I- and S-type granite intrusions (e.g., Igoudrane, Bou Teglimt, Taouzzakt and Bou Fliou). In this contribution, we present new field, petrographic and microanalytical data of the Bou Fliou sulfide- magnetite mineralization in the northwestern part of the Bou Teglimt granodiorite intrusion (567 ± 6Ma). Field and microscopic investigations reveal pervasive silicification and potassic alteration associated with iron oxides- rich (> 10 vol %) veins, stockworks, and breccias along NE-SW faults. The ore minerals are mainly magnetite, hematite, chalcopyrite, pyrite, sphalerite, Ag-galena, cobaltite, and less abundant Bi-sulfosalts (i.e., cosalite, galenobistmuthite, and llilanite-gustavite). The low-titanium iron oxides (magnetite and hematite), widespread iron-rich breccia, association with crustal scale fault zone, pervasive alteration, and overprinting mineral as- semblages suggest a shallow level IOCG-style mineralization. High-order splays of the major fault zone could have provided effective traps for magmatic and basinal Cu and Zn-Pb hydrothermal fluids. The ∼550 Ma in- trusive phases in the region could have contributed by fluid, elements or heat in a local effective blumbing. The mineralogical and ore textural criteria reflecting ore formation at a realtively shallow crustal environment, but a fluid inclusion study is needed to characterize the ore fluids and mechanism of ore deposition. 1. Introduction The Pan-African belts of Africa have never been considered the first priority for mineral exploration in Archean, early Proterozoic and Phanerozoic terranes if assessed against their historical perspective of mineral exploration and production. However, recent advances in un- derstanding of the evolution of Pan-African sequences and a number of recent exploration successes suggest that Pan-African terranes merit more attention than was previously afforded (e.g., Foster et al., 2001; Gasquet et al., 2008; Bouabdellah et al., 2016). Iron oxide copper-gold deposits (IOCG) comprise a type of miner- alization formed in the geological time scale, from the Archean to Phanerozoic with most important occurrences in Australia and South America but also in Africa (Nisbet et al., 2000; Williams et al., 2005). Generally, these deposits contain massive and disseminated iron oxides (magnetite and/or hematite) that are partially or completely replaced by sulfides, i.e., pyrite and chalcopyrite. The style of mineralization and geometry of the mineralized bodies vary from veins, stockworks to breccia pipes or replacement mantos as stratabound or discordant bodies (Hitzman et al., 1992). Commonly, the IOCG deposits lack a demonstrated intimate relationship to particular intrusive phases, but a few cases are associaty with intrusions showing similar geochemical features as those linked to the porphyry Cu–Au deposits (e.g., Pollard, 2000, 2006). The large occurrences of massive iron oxides in some IOCG deposits include: (a) a classical BIF ore, (b) hydrothermal re- placement of granitoids, and (c) selective hydrothermal replacement of layered rocks (e.g., Barton and Johnson, 1996; Bastrakov et al., 2007; Monteiro et al., 2008). https://doi.org/10.1016/j.chemer.2018.10.002 Received 8 August 2018; Received in revised form 28 September 2018; Accepted 1 October 2018 ⁎ Corresponding author. E-mail address: bouchrabaidada@gmail.com (B. Baidada). Chemie der Erde xxx (xxxx) xxx–xxx 0009-2819/ © 2018 Elsevier GmbH. All rights reserved. Please cite this article as: BAIDADA, B., Chemie der Erde, https://doi.org/10.1016/j.chemer.2018.10.002