Abstract
Field investigations, K-Ar age determinations and chemical data were used to describe the development of an intraplate volcanic province, the Darfur Dome, Sudan. Magmatism started 36 Ma ago at a small subvolcanic complex (Jebel Kussa) in the center of the dome and was active in the same area between 26 and 23 Ma. Two major volcanic fields (Marra Mountains and Tagabo Hills) developed between 16 and 10 Ma. Volcanism started again at 6.8 Ma with a third volcanic field (Meidob Hills) and at 4.3 Ma in the Marra Mountains and with the reactivation of the center. Activity then continued until the late Quaternary. Having started in the center of the Darfur Dome, volcanism moved in 36 Ma 200 km towards the NNE and 100 km SSW No essential difference in the alkaline magma types (basanitic to phonolitic-trachytic, with different amounts of assimilation of crustal material) in the different fields, was observed. Magmatism is thought to have been produced by a rising mantle plume and volcanism was triggered by stress resolution along the Central African Fault Zone.
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Abdel Rahman EM, Harms U, Schandelmeier H, Franz G, Darbyshire DPF, Horn P, Miiller-Sohnius D (1990) A new ophiolite occurrence in NW Sudan-constraints on Late Proterozoic tectonism. Terra Nova 2: 363–376.
Bermingham PM, Fairhead JD, Stuart GW (1983) Gravity study of the Central African Rift System: a model of continental disruption. 2. The Darfur domal uplift and associated Cainozoic volcanism. Tectonophysics 94: 205–222.
Browne SE, Fairhead JD (1983) Gravity study of the Central African Rift System: a model of continental disruption. 1. The Ngaoundere and the Abu Gabbra Rifts. Tectonophysics 94: 187–203.
Browne SE, Fairhead JD, Mohamed II (1985) Gravity study of the White Nile Rift System, Sudan, and its regional tectonic setting. Tectonophysics 113: 123–137.
Coomer PG, Vail JR (1974) 1100 m.y. model age for a Sudan lead deposit. 18th Ann Rep African Geology, Univ Leeds.
Davidson JP, Wilson IR (1989) Evolution of an alkali basalt -trachyte suite from Jebel Marra volcano, Sudan, through assimilation and fractional crystallization. Earth Planet Sci Lett 95: 141–160.
Deruelle B, Moreau C, Nkoumbou C, Kambou R, Lissom J, Njonfang E, Ghogomu RT, Nono A (1991) The Cameroon Line: a review. In: Kampunzu AB, Lubala RT (eds) Magmatism in Extensional Structural Settings. The Phanerozoic African Plate. Springer Verlag, Berlin Heidelberg New York, pp. 274–327.
Fairgrhead JD (1979) A gravity link between the domally uplifted Cainozoic volcanic centres of North Africa and its similarity to the East African Rift System anomaly. Earth Planet Sci Lett 42: 109–113.
Francis PW, Thorpe RS, Ahmed F (1973) Setting and tectonic significance of Tertiary-Recent volcanism in the Darfur Province of western Sudan. Nature Phys Sci 243: 30–32.
Franz G, Harms U, Denkler T, Pasteels P (1993) Late Cretaceous igneous activity in the Delgo uplift (Northern Province, Sudan). In: Thorweihe U, Schandelmeier H (eds) Geoscientific Research in Northeast Africa. Balkema, Rotterdam, pp. 227–230.
Fuhrmann U, Lippolt HJ (1987) Excess argon and dating of Quaternary Eifel volcanicsm: III. Alkali basaltic rocks of the Central West Eifel/FR Germany. N Jb Geol Paläontol Mh 4: 213–236.
Funkhauser JG, Naughton JJ (1968) Radiogenic helium and argon in ultramafic inclusions from Hawaii. J Geophys Res 73: 4601–4607.
Halliday AN, Davidson JP, Holden P, De Wolf C, Der-Chuen Lee, Fitton JG (1990) Trace element-fractionation in plumes and the origin of HIMU mantle beneath the Cameroon Line. Nature 347: 523–528.
Harms U (1989) Krustenentwicklung in Nordost-Africa: Geochemische und isotopengeochemische Untersuchungen von Granitoiden aus Südägypten und Nordsudan. Berl Geowiss Abh A 108: 1–152.
Haußmann U (1993) Auswertung gravimetrischer Daten aus dem Nordwest-Sudan. PhD Thesis, Technische Universität Berlin, 126 pp.
Hildebrandt RR, Meissner B, Ripke U (1990) Geological interpretation map Jebel Marra, Sudan 1:100,000. Technische Fachhochschule Berlin, Berlin.
Hill RJ (1991) Starting plumes and continental break-up. Earth Planet Sci Lett 104: 398–416.
Kaneoka I, Aoki K-L (1978) 40Ar/39Ar analyses of phlogopite nodules and phlogopite-bearing peridotites in South African kimberlites. Earth Planet Sci Lett 40: 119–129.
Klerkx J, Deutsch S (1977) Résultats préliminaires obtenues par la méthode Rb/Sr sur Page des formations précambriennes de la region d'Uweinat (Libye). Mus Roy Afr Centr Dept Géol Min Rapp Ann 1976: 83–94.
Lattard D, Goerne vG, Franz G (1993) Metamorphic evolution of the Panafrican basement in the Meidob volcanic field (Darfur Dome, Sudan). In: Thorweihe, U, Schandelmeier H (eds) Geoscientific Research in Northeast Africa. Balkema, Rotterdam pp. 161–163.
Meissner B, Ripke U (1989) Geological interpretation map Tagabo Hills, Sudan 1:250,000. Technische Fachhochschule Berlin, Berlin.
Satir M, Morteani G, Fuganti A, von Drach V (1991) K-Ar-ages, Sr-isotopic compositions and chemistry of late Cretaceous-Tertiary basalts from the Nubian Desert (northern Sudan). Eur J Miner 3: 943–956.
Schandelmeier H, Pudlo D (1990) The Central African Fault Zone (CAFZ) in Sudan — a possible continental transform fault. Berl Geowiss Abh A 120: 31–44.
Schandelmeier H, Richter A (1991) Brittle shear deformation in Northern Kordofan, Sudan: late Carboniferous to Triassic reactivation of Precambrian fault systems. J Struc Geol 13: 711–720.
Schilling JG (1991) Fluxes and excess temperatures of mantle plumes inferred from their interaction with migrating mid-ocean ridges. Nature 352: 397–403.
Urlacher G, Franz G, Volker F (1994) Magma generation in the Meidob Hills, Darfur, Sudan, Fur J Mineral, 6, Beiheft No 1, 291.
Vail JR (1972) Jebel Marra, a Dormant Volcano in Darfur Province, Western Sudan. Bull Volcanol 36: 251–265.
Wilson JR (1983) Petrogenesis of the Tertiary-Recent volcanic complex of Jebel Marra, Sudan. Ph D Thesis, Univ Leeds, 355 pp.
Wilson M, Guiraud R (1992) Magmatism and rifting in Western and Central Africa from Late Jurassic to Recent times. Tectonophysics 213: 1–23.
Wycisk P, Klitzsch E, Jas C, Reynolds O (1990) Intracratonal sequence development and structural control of Phanerozoic strata in Sudan. Berl Geowiss Abh A 120: 45–86.
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Franz, G., Pudlo, D., Urlacher, G. et al. The Darfur Dome, western Sudan: the product of a subcontinental mantle plume. Geol Rundsch 83, 614–623 (1994). https://doi.org/10.1007/BF00194166
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DOI: https://doi.org/10.1007/BF00194166