Magharsum Gr

Cenozoic

Mesozoic

Information provided by geoscience team at Ahmadu Bello University, Zaria, Nigeria --see About

Magharsum Gr

Period:

Paleogene, Neogene

Age Interval:

Aquitanian-Langhian

Province:
Sudan E

Type Locality and Naming

Red Sea coastal area of Sudan. The Group is made up of the lacustrine/deep marine Kareem Fm and Rudeis Fm

Reference section: Eltayib, 2016; Eltayib et al., 2019

[Figure 1. Index map of the Red Sea showing extent of the Red Sea Basin total petroleum system (from Lindquist, 1998).]

[Figure 2. Syn- and Post-Rift Red Sea Stratigraphy - Oligocene to Recent (from Lindquist, 1998)]

[Figure 3. Pre-Rift Red Sea Stratigraphy - Precambrian to Oligocene (from Lindquist, 1998).]

[Figure 4. Index map of the Red Sea region showing generalized geology and discussed locations (after Mitchell and others, 1992, extracted from Lindquist, 1998).]

[Figure 5. Lithostratigraphic Column of the Study Area (Modified After Eltayib, 2016, from Eltayib et al., 2019).]

[Figure 6. Stratigraphic column for the Sudanese Red Sea, based on surface geology and limited coastal exploration wells (after Bunter, 1989). Extracted from]

Lithology and Thickness

The Group is made up of the Kareem Fm of massive sandy claystone overlying the Rudeis Fm of massive black shale

Lithology Pattern:

Claystone

Relationships and Distribution

Lower contact

Unconformably overlies the Hamamit Fm

Upper contact

Conformably overlain by the Belayim Fm

Regional extent

Red Sea coastal area of Sudan.

GeoJSON

null

Fossils

Age

Early Miocene -- Aquitanian- Burdigalian

Age Span:

Beginning stage:

Aquitanian

Fraction up in beginning stage:

0.00

Beginning date (Ma):

23.04

Ending stage:

Burdigalian

Fraction up in the ending stage:

1.0

Ending date (Ma):

15.99

Depositional setting

Lacustrine/deep marine (Elkareem et al., 2022)

Depositional pattern:

Additional Information

Compiler:

Enam O. Obiosio, Solomon Joshua Avong and Henry Nasir Suleiman (2024) - Stratigraphic Lexicon compiled from the following publications:

Bunter, M.A.G. and Abdel Magid, A.E.M. (1989): The Sudanese Red Sea: New Development in Stratigraphy and Petroleum Geological Evolution. Jour. Petroleum Geology, 12: 145-166. https://doi.org/10.1111/j.1747-5457.1989.tb00230.x

Elkareem, E.M.I.A., Osman, W.R., Ferguson, A.J., Warren, J.K. and Mohamed, N.E. (2022): New Evidence of the Holokinetic Sequences around Suakin-1 and -2 in the Sudanese Red Sea Area Using Integrated Geophysical Interpretation. International Journal of Geosciences, 13: 483-497. https://doi.org/10.4236/ijg.2022.136026

Eltayib, S.H.M.A., Abdelrahman, E.S.M., Ibrahim, A.S.M., Al-Imam, O.A.O.. (2019): Sedimentary petro graphic characteristics of Zeit Formation (Suakin-1 Well) in Sudanese Red Sea Basin. Int Jour Advanced Geosciences. 7: 10-17.

Yagoub, A.M. (2007): Preliminary sequence stratigraphy and tectonic evolution of the Tokar Delta, (Southern Sudanese Red Sea). Qatar Univ. Sci . J. 27: 85- 98.