Shendi Fm

Atbara Basin, east of Blue Nile Basin, East Sudan

Kheiralla (1966) introduced the name Quartoze Sandstone to describe the siliciclastic rocks cropping out in Shendi area (Abujaball et al., 2021). A formal lithostratigraphic nomenclature of the units was given by Whiteman (1971) who proposed the name Shendi formation whose type locality is represented by outcrops north east of kabushiya village, River Nile state (Abujaball et al., 2021).

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[Fig. 1: Tectonic model of the West and Central African Rift System (WCARS) and the Central African Shear Zone (CASZ). The red arrow and rectangle represent the Shendi-Atbara Basin and study area (Modified after Fairhead, 1988b).]

[Fig. 2: Stratigraphy of the CARS (modified from Schull, 1988; McHargue et al., 1992; Guiraud and Bosworth, 1997; Gani et al., 2009; Wolela, 2009; Dou et al., 2013, 2018, 2023a; Liu and Chen, 2014; Eisawi et al., 2015; Mohammed et al., 2016; Bussert et al., 2018; Yassin et al., 2017; Mohammed Yasin et al., 2019; Gao et al., 2023)]

[Fig. 3. Stratigraphic chart of Shendi-Atbara Basin showing the rock units succession and the basin evolution (from Babkir et al., 2023).]

[Fig. 4. Map showing the location of WCARS basins in between major cratonic areas in Africa, including the subdivision into a Western, Arabian-Nubia, and Southern Austral block (modified from Genik, 1993; Meert and Lieberman, 2008).]