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Abstract:

The Muglad Basin is part of the Central and West African Rift System that started to develop during late Jurassic/early Cretaceous time. The system evolved through three rift cycles spanning Berriasian to Cenomanian, Coniacian to Maastrichtian and Paleocene to Pliocene. In this work the results of a palynological study of selected wells from the Muglad Basin, Sudan are presented. The combination of samples from these wells has enabled a palynological analysis of a nearly complete Cenozoic section (Quaternary to Paleocene) which was developed during the last rift cycle. Five Zones have been recognized, most of which are further divided into two sub-zones. The Zones are (i) Gramineae - Chenopodipollis microporatus (Quaternary; Post-Adok Formation); (ii) Verrucato-sporites spp. (Pliocene-Miocene; Adok Formation); (iii) Cyathidites minor-Perfotricolpites digitatus (Miocene-Oligocene; Tendi Formation); (iv) Striatopollis spp. (Oligocene-Eocene; Nayil Formation); (v) Mauritiidites crassiexinus–Echimonocolpites rarispinosus (Paleocene; Amal Formation). The characteristics of each zone and corresponding sub-zones are discussed.

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