A precise U–Pb zircon age for the Bleïda granodiorite, Anti-Atlas, Morocco: implications for the timing of deformation and terrane assembly in the eastern Anti-Atlas

Potential sources of Ediacaran strata of Iberia: a review

“…In Europe, the Cadomian belt includes a pre-Neoproterozoic basement (Icartian gneiss, 2.1 Ga; Inglis et al, 2004;Samson & D'Lemos, 1998), Cryogenian magmatism (c. 755-745 Ma; orthogneisses from the Penthièvre Complex; Nagy, Samson, & D'Lemos, 2002) and Ediacaran sedimentary basins and coeval magmatism reworked by later deformation and metamorphism (Chantraine, Chauval, & Rabu, 1994;D'Lemos, Strachan, & Topley, 1990;Nance et al, 2008). In North Africa, the Trans-Saharan belt and the East Arabian orogen would have been part of an important orogenic system (Transgondwanan Supermountain; Squire, Campbell, Allen, & Wilson, 2006) that resulted from the amalgamation evolving the West African craton, the Saharan Metacraton and the Arabian-Nubian shield, which is known as Pan-African orogeny (Kroner & Stern, 2004).…”

The Bou Azzer Co–Ni–Fe–As(±Au ± Ag) District of Central Anti-Atlas (Morocco): A Long-Lived Late Hercynian to Triassic Magmatic-Hydrothermal to Low-Sulphidation Epithermal System

“…The district has been extensively studied over the last few decades resulting in the release of a wealth of geological, mineralogical, and geochemical data, in hundreds of research papers, theses, geological maps at different scales, and unpublished mining company reports. The regional and local geological descriptions presented here draw extensively from the pioneering work of Leblanc (1975Leblanc ( , 1986 together with recent studies of Hefferan et al (2000), Thomas et al (2002Thomas et al ( , 2004, Walsh et al (2002), Inglis et al (2004Inglis et al ( , 2005, Gasquet et al (2005), Soulaimani et al (2006), El Hadi et al (2010), and Blein et al (2014). Accordingly, only a summary of major conclusions relevant to the present synthesis is given below.…”

“…To the north of the Bou Azzer district, the mafic-ultramafic succession is bounded by a tectonic sliver <300 m wide composed of a blueschist-facies metamorphic assemblage suggesting maximum pressure conditions of 5-6 kbar and temperatures of 400-600°C (Hefferan et al 2002;Bousquet et al 2008). Younger, post-collisional igneous rocks including the Bleida granodiorite dated at 579.4 ± 1.2 and 578.5 ± 1.2 Ma (U-Pb on zircon; Inglis et al 2004) constrain the cessation of principal Pan-African deformation to before ca. 580 Ma.…”

“…Resulting structures are represented by SW-directed thrusts and crustal stacks, folds and associated cleavage, and greenschist facies metamorphism dated at *663-650 Ma (Thomas et al 2002;Inglis et al 2004). Reactivation of the major Eburnian and Pan-African faults during the Hercynian orogeny triggered the injection of felsic dike swarms at 470-400 Ma (Huch 1988), and the development of two hydrothermal stages at 356 ± 20 to 300 Ma (Leblanc 1975;Levresse 2001) and 240 ± 10 to 218 ± 8 Ma (i.e., Late Triassic, Ledent 1960;Levresse 2001).…”

Geologic and Metallogenic Framework of North Africa

“…1) were built during the main phases of Proterozoic and subsequent Phanerozoic orogenies, the break-up of the supercontinents Rodinia, Gondwana, and Pangea, and during the opening and closing of major ocean basins such as the Iapatus, Atlantic, Pacific, and Tethys (Tawadros 2011). North African geology has been extensively studied over the last few decades resulting in a wealth of geological, mineralogical, geochemical, and geochronological data, reported in hundreds of research papers, and in geological maps published at a variety of scales (e.g., Stern 1994Stern , 2002Walsh et al 2002;Ennih and Liégeois 2001;Johnson and Woldehaimanot 2003;Lié-geois et al 2003Lié-geois et al , 2005Lié-geois et al , 2013Inglis et al 2004Inglis et al , 2005Key et al 2004, Thomas et al 2004Gasquet et al 2005;Schofield et al 2006;Bendaoud et al 2008;Fezaa et al 2010;Johnson et al 2011;Fritz et al 2013; and references therein). Therefore, only a summary of major conclusions relevant to the present synthesis is given below.…”