Agor Fm

Melut Basin (NE South Sudan - W Ethiopia), and the Rawat Basin (SE Sudan), which are the southeastern and the northwestern basins of the greater White Nile rift basin.

Reference: Dou et al., 2007; Dou et al., 2023 (Melut Basin); Mohammed et al, 2017 (Rawat Basin)

[Fig. 1: Simplified map of the West and Central African Rift System (WCARS) showing the major features discussed in the text and the location of the Melut Basin in South Sudan (modified from Genik, 1993)]

[Fig. 2: Comprehensive stratigraphic columns in the Melut Basin (from Dou et al., 2023)]

[Fig. 3: Rawat Basin- Block 25 in southern Sudan (after Ministry of Petroleum & Gas-OEPA, 2015, Extracted from Mohammed et al., 2017).]

[Fig. 4: Summary of Tectono-stratigraphy of the Rawat Basin (from Mohammed, 2016).]

In Rawat Basin (Mohammed et al, 2017), the Agor Fm is the youngest monotonous sand sequences commonly identified on the tops of all wells in the Rawat Basin. It consists of clay/claystone interbedded with thin layer of sand. The sand is medium to coarse grained, subrounded, subangular, and moderately sorted, occasional pebble sized grains. The clay is dusk yellow, yellowish grey, to pale olive, soft, sticky, amorphous, and slightly calcareous (Hassan, 2016).