Wad Medani Fm

Khartoum Basin, central Sudan. Awad (1994) included this as a Member within the Gezira Fm with AAF-4 is chosen as type well.

Reference: Awad (1994), A. Gibreel (2015)

[Fig. 1: Khartoum Basin is #8 on map (Fig.3 in Awad, 1994)]

[Fig. 2: Khartoum Basin stratigraphy and depositional sequences (pg. 17 in A. Gibreel, 2015)]

"It consists predominantly of sand and clay interbeds, and occasional limestone and tuffaceous material. The claystones are varicoloured, predominantly light grey to reddish brown and silty. The sandstones are loose, coarse- to medium-grained and moderately sorted. Occasional stringers of siltstone and/or fine- to very fine-grained sandstones may be present. The tuffaceous claystones occur near the top of the member. Its thickness attains nearly 190 m in the AAF-4 well." (Awad, 1994)