геология и разведка
Preview

Proceedings of higher educational establishments. Geology and Exploration

Advanced search

A possible model of the Paleozoic sedimentary basins evolution at the North African platform

https://doi.org/10.32454/0016-7762-2017-6-68-73

Abstract

A dual model of the Paleozoic basins development, disposing on the Late Proterozoic (Pan-African) and the Early Proterozoic (Eburnean) crust, has been proposed. The formation of the first group basins is connected with the subsiding of the sections of the cooling gneissic-domes of«rejuvenated» (Early Precambrian but tectonically reworked at the end of the Proterozoic) Pan-African crust. Accordingly, the development of the second group basins is a result of the Precambrian deep sited (mantle) magmatic chambers cooling and subsiding together with the sites of the old lithosphere, covering them. The manifestation of the Vendian volcanic units on Anti-Atlas, Ugarta, Regibat-Eglab uplifts is the most possible evidence of the mantle magmatic activity, which could create those chambers.

About the Author

M. Sh. Zamil
RUDN University
Russian Federation


References

1. Артюшков Е.В. Механизм образования сверхглубоких осадочных бассейнов. Растяжение литосферы или эклогитизация? // Геология и геофизика. 2010. Т. 5. № 12. С. 1675-1686.

2. Долгинов Е.А., Давиденко И.В., Стихотворцева Н.А. и др. Геология и полезные ископаемые Восточной и Северо-Восточной Африки. М.: Недра, 1978. 230 с.

3. Долгинов Е.А., Замиль М.Ш. Тектоническая природа осадочных бассейнов палеозоя и мезозоя севера Африки // Известия вузов. Геология и разведка. 2013. № 6. С. 6-13.

4. Долгинов Е.А., Замиль М.Ш., Ячменников Ю.М. Гравиметрические характеристики осадочных бассейнов Северной Африки и Северной Аравии и их возможная интерпретация // Известия вузов. Геология и разведка. 2009. № 2. С. 9-13.

5. Гравиметрическая карта Африки. М-б: 1:5000000. Изд. Мин. Геол. СССР. М.: ВНИИЗАРУБЕЖГЕОЛОГИЯ, 1989.

6. Behna M.D., Conradb C.P., Silvera P.G. Detection of upper mantle flow associated with the African Superplume // Earth and Planetary Science Letters. 2004. Vol. 224. 17 May. P. 259-274.

7. Cahen L., Snelling N.J., Delhal D, Vail V.R., Bonhomine M., Ledant D. The Geochronology and Evolution of Africa. Oxford: Clarendon Press, 1984. 372 p.

8. Coward M.P., Ries A.C. Tectonic development of North African basins// Geological Society, London, 2003. V. 207. P. 61-83.

9. Getachew E.T., Meijde M., Nyblade A.A., Meer F.D. A crustal thickness map of Africa derived from a global gravity field model using Euler deconvolution // Geophys. J. Int. 2011. Vol. 187. P. 1-9.

10. Hauzenberger C.A., Bauernhofer A.H., Hoinkes G., Wallbrecher E., Mathu E.M. Pan-African high pressure granulites from SE-Kenya: Petrological and geothermobarometric evidence for a polycyclic evolution in the Mozambique belt // Journal of African Earth Sciences. 2004. V. 40 P. 245-268.

11. Holt P.J., Allen M.B., Hunen J., Bjornseth H.M. Lithospheric cooling and thickening as a basin forming mechanism // Tectonophysics. 2010. Vol. 495. P. 184-194.

12. Ismail-Zadeh A.Т., Naimark B.M. Hydrodynamic model of sedimentary basin formation based on development and subsequent phase transformation of a magmatic lens in the upper mantle // Computational seismology and geodynamics. 1994. Vol. 3. P. 184-194.

13. Kroner A., Linnebacher P., Stern R.J., Reischmann T., Manton W., Hussein I.M. Evolution of Pan-African island arc assemblages in the southern Red Sea Hills, Sudan, and in southwestern Arabia as exemplified by geochemistry and geochronology // Precambrian Research. 1991. V. 53. P. 99-118.

14. Mckenzie D., Nimmo F., Jackson J. A. Characteristics and consequences of flow in the lower crust. // Journal of geophysical research. 2000. Vol. 105. N B5, 10 May. P. 11029-11046.

15. Milesi J.P. et al. Map «Geology and major ore deposits of Africa» Sc. 1:10000000. BRGM. Orleans (France), 2004.

16. Netzeband G.L., Gohl K., Hubscher C.P., Ben-Avraham Z., Dehghani G.A., Gajewski D., Liersch P. The Levantine Basin-crustal structure and origin // Tectonophysics. 2006. V. 418. Р. 167-188.

17. Priestley K., McKenzie D., Debayle E., Pilidou S. The African upper mantle and its relationship to tectonics and surface geology // Geophys. J. Int. 2008. № 175. P. 1108-1126.

18. Rybakov M., Goldshmidt V., Fleisher L., Rotstein V. The crystalline basement in Central Israel derived from gravity and magnetic data // Isr. J. Earth Sci. 1999. N 48. P. 101-111.

19. Semprich J., Simon N.S.C., Podladchikov Y.Y. Density variations in the thickened crust as a function of pressure, temperature, and composition // Int. J. Earth Sei. (Geol Rundsch) 2010. V. 99. P. 1487-1510.

20. Thompson A.B., Connolly J.A.D. Metamorphic fluids and anomalous porosities in the lower crust // Tectonophysics. 1990. Vol. 182. P. 47-55.


Review

For citations:


Zamil M.Sh. A possible model of the Paleozoic sedimentary basins evolution at the North African platform. Proceedings of higher educational establishments. Geology and Exploration. 2017;(6):68-73. (In Russ.) https://doi.org/10.32454/0016-7762-2017-6-68-73

Views: 384


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.


ISSN 0016-7762 (Print)
ISSN 2618-8708 (Online)