Regional tectonic controls on basement architecture and oil accumulation within the Muglad basin, Sudan

J. Derek Fairhead; Stanislaw Mazur; Christopher M Green; Mohamed Elamin Yousif

doi:10.1071/ASEG2012ab358

ISSN: 2202-0586
E-ISSN:

oa Regional tectonic controls on basement architecture and oil accumulation within the Muglad basin, Sudan
Authors J. Derek Fairhead^a, Stanislaw Mazur^b, Christopher M Green^c and Mohamed Elamin Yousif^d
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^a GETECH, Leeds, , UK LS8 2LJ, [email protected] ^b GETECH, Leeds, , UK LS8 2LJ, [email protected] ^c GETECH, Leeds, , UK LS8 2LJ, [email protected] ^d GNPOC, Khartoum, , Sudan, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2012, Issue ASEG2012 - 22nd Geophysical Conference, Dec 2012, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2012ab358
- Published online: 01 Dec 2012

Abstract

Summary

The Muglad basin, Sudan, is a good example of polyphase rifting with at least three major phases of basin development. Each phase has resulted in the generation of source rock, reservoir and seal geology with structural traps often closely linked to basement highs. In this contribution we investigate the tectonic processes that have contributed to basin development at both macro and micro scales.

The macro perspective investigates the basin’s evolution as part of an Africa wide rift system and how it is intimately linked to global plate tectonics and to changes in plate interactions. These changes in plate interactions have caused significant modifications in the orientation and magnitude of the African stress field which in turn has controlled the development of the rift system. On the micro basin scale, the methods used to investigate structure include the compilation of structural maps for different time periods of the individual rift basins into regional structural maps, the role and importance of stratigraphic unconformities within basins and geophysical mapping of the basement morphology of the Muglad basin using an integrated interpretation approach.

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References

Avbovbo, A. A. Ayoola, E. O. and Osahon, G. A.[1986] Depositional and structural styles in Chad basin of north eastern Nigeria. Amer. Ass. Pet. Geol. Bull. 70 (12):1787-1798.
Cordell, L. and Henderson, R.G. [1968] Iterative three dimensional solution of gravity anomaly data using a digital computer. Geophysics, 33, 596-601.
Fairhead, J.D. and Green, C.M. [1989] Controls on rifting in Africa and the regional tectonic model for the Nigeria and East Niger rift basins Journal of African Earth Sciences, Vol. 8, Nos. 2/3/4, pp. 231-249.
Fairhead, J.D., Williams, S.E., Fletcher, K.M.U., Green, C.M. and Vincent, K. [2009] Trident – A New Satellite Gravity Model for the Oceans EAGE Amsterdam, Extended Abstract 6039, 71st EAGE Conference & Exhibition — Amsterdam, The Netherlands, 8 - 11 June 2009
Guiraud, R., Binks, R.M., Fairhead, J.D. & Wilson, M. [1992] Chronology and geodynamic setting of Cretaceous-Cenozoic rifting in West and Central Africa, Tectonophysics, 213, p. 227-234.
Guiraud R. & Bosworth W. [1997] – Senonian basin inversion and rejuvenation of rifting in Africa and Arabia. Synthesis and implications to plate-scale tectonics. Tectonophysics, 282, p, 39-82.
McHargue, T.R., Heidrick, T.L. & Livingstone, J. [1992] Tectonostratigraphic development of the Interior Sudan Rifts, Central African. In: P.A. Ziegler (ed.), Geodynamics of Rifting, Vol. II. Case History Studies on Rifts: North and South America and Africa. Tectonophysics, 213 p. 187-202.
McKenzie, D.P., [1978] Some remarks on the development of sedimentary basins. Earth Planet. Sci. Lett., 40:

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Article Type: Research Article

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