Pan-African magmatism in the Wadi El-Imra district, Central Eastern Desert, Egypt: Geochemistry and tectonic environment

Journal of the Geological Society

Volumn 153, Issue 5, 1996, Pages 705-718

  Furnes, H ^a   El Sayed, M M ^b   Khalil, S O ^b   Hassanen, M A ^b  

^a Geological Institute   (Norway)

^b Alexandria University Faculty Of Science   (Egypt)

Author keywords

Egypt; Igneous activity; Isotopes; Pan African Orogeny; Trace elements

Indexed keywords

CALC ALKALINE ROCK; GEOCHEMISTRY; MAGMATISM; PAN AFRICAN OROGENY; TECTONIC SETTING;

EGYPT, EASTERN DESERT, WADI EL-IMRA;

EID: 0030497578     PISSN: 00167649     EISSN: None     Source Type: Journal    
DOI: 10.1144/gsjgs.153.5.0705     Document Type: Article

References (65)

1. ABDEL-MONEM, A. A. & HURLEY, P. M. 1978. U-Pb dating of zircons from psammitic gneiss. Wadi Abu Rasheid-Wadi Sikait area, Egypt. In: TAHOUN, S.A. (ed.) Evolution and Mineralization of the Arabian Shield. Pergamon Press, Oxford, 2, 165-170.
2. ABDEL-RAHMAN, A. M. & DOIG, R. 1987. The Rh-Sr geochonological evolution of the Ras Gharib segment of the northern Nubian Shield. Journal of the Geological Society, London, 144, 577-586.
3. ARCHIBALD, N. J., BETTENAY, L. F., BICKLE, M. J. & GROVES, D. I. 1981. Evolution of Archean crust in the Eastern Gold field province of the Yilgarn Block. Western Australia. In: GLOVER, J. E. & GROVES, D. I. (eds) Archean geology. Geological Society of Australia, Special Publications, 7, 491-504.
4. BEARD, J. S. 1995. Experimental, geological, and geochemical constraints on the origin of low-K silicic magmas in oceanic arcs. Journal of Geophysical Research. 100, 15 593-15 600.
5. _ & LOFGREN, G. E. 1991. Dehydration melting and water-saturated melting of basaltic and andesitic greenstones and amphiholites at 1, 3, and 6.9 kb. Journal of Petrology, 32, 365-401.
6. BENTOR, Y. K. 1985. The crustal evolution of the Arabian-Nubian massif with special reference to the Sinai Peninsula. Precambrian Research, 28, 1-74.
7. BERNAU, R., DARBYSHIRE, D. P. F., FRANZ, G., HARMS, U., HUTH, A., MANSOUR, N., PASTEEL, P. & SCHANDELMEIER, H. 1987. Petrology, geochemistry and structural development of the Bir Safsaf-Aswan uplift. Southern Egypt. African Journal of Earth Science, 6, 79-90.
8. BICKFORD, M. E., SULTAN, M., ARVIDSON, R. E. & EL-KALIONBY, B. 1989. Evidence for involvement of pre-Late Proterozoic crust in the Nubian Shield. Egypt: Common Pb data from K-feldspars. Geological Society of America, Abstracts with programs, 21, A24.
9. BORG, S. G., DEPAOLO, D. J. & SMITH, B. M. 1990. Isotopic structure and cs of the Central Transantarctic Mountains. Journal of Geophysical Research. 95, 6647-6667.
10. BRANDON, A. D. & LAMBERT, R. STJ. 1993. Trustai melting in the Cordilleran interior: The mid-Cretaceous White Creek Batholith in the southern Canadian Cordillera. Journal of Petrology, 34, 239-269.
11. BROPHY, J. G. 1991. Compositional gaps, critical crystallinity, and fractional crystallization in orogenic (calc-alkaline) magmatic systems. Contributions to Mineralogy and Petrology, 109, 173-182.
12. CAMP, V. E. 1984. Island arcs and their role in the evolution of the western Arabian Shield. Geological Society of America Bulletin. 95, 913-921.
13. DIXON, T. H. 1979. The evolution of continental crust in the Late Precambrian Egyptian Shield. Geological Society of America. Abstract with programs, 10, 390.
14. _ 1981. Age and chemical characteristics of some pre-Pan-African rocks in the Egyptian shield. Precambrian Research, 14, 119-133.
15. _ & GOLOMBEK, M. P. 1988. Late Precambrian crustal accretion rates in northeast Africa and Arabia. Geology, 16, 991-994.
16. EL-BAYOUMI, R. M. & GREILING, R., 1984. Tectonic evolution of a Pan-African plate margin in Southeastern Egypt - A suture zone overprinted by low angle thrusting? In: KLERKX, J. & MICHOT, J. (eds) African Geology, Tervuren, 47-56.
17. EL-GABY, S., EL-NADY, O. & KHUDEIR, A. 1984. Tectonic evolution of the Basement Complex in the Central Eastern Desert of Egypt. Geologische Rundschau, 73, 1019-1036.
18. EL-RAMLY, M. F., GREILING, R., KRÖNER, A. & RASHWAN, A. A. 1984. On the tectonic evolution of the Wadi Hafafit area and environs. Eastern Desert of Egypt. In: BAKOR, A. R. ET AL. (eds) Pan-African crustal evolution in the Arabian-Nubian Shield. Faculty of Earth Sciences, University of Jeddah, Bulletin 6, 113-126.
19. EWART, A., BROTHERS, R. N. & MATEEN, A. 1977. An outline of the geology and geochemistry and the possible petrogenetic evolution of the volcanic rocks of the Tonga-Kermadec-New Zealand island arc. Journal of Volcanology and Geothermal Research, 2, 205-250.
20. FRISCH, W & AL-SHANTI, A. M. 1977. Ophiolite belts and the collision of island arcs in the Arabian Shield. Tectonophysics, 43, 293-300.
21. FULLAGAR, P. D. & GREENBERG, J. K. 1978. Egyptian younger granites: A single period of plutonism? Precambrian Research. 6, A22.
22. GASS, I. G. 1979. Evolutionary model for the Pan-African crystalline basement. In: TAHOUN, S A. (ed.) Evolution and Mineralization of the Arabian-Nubian Shield. Institut of Application Geology, Jeddah, 3, 11-20.
23. GILLESPIE, J. G. & DIXON, T. H. 1983. Lead isotope systematics of some igneous rocks from the Egyptian Shield. Precambrian Research. 20, 63-77.
24. GOVINDARAJU, K. 1989. 1989 compilation of working values and sample description for 272 geostandards. Geostandards Newsletter, Special Issue, 13, 1-113.
25. GREENBERG, J. K. 1978. Geochemistry, petrology and tectonic origin of Egyptian younger granites. PhD thesis. Chapel Hill, University of North Carolina.
26. HABIB, M. S., AHMED, A. A. & EL-NADY, O. M. 1985. Two orogenies in the Meatiq area of the CED, Egypt. Precambrian Research, 30, 83-111.
27. HANSON, G. N., 1978. The application of trace elements to the petrogenesis of igneous rocks of granitic composition. Earth and Planetary Science Letters. 38, 26-43.
28. HARMS, U., SCHANDELMEIER, H. & DARBYSHIRE, D. P. F. 1990. Pan-African reworked early/middle Proterozoic crust in NE Africa west of the Nile: Sr and Nd isotope evidence. Journal of the Geological Society, London. 147, 859-872.
29. HARRIS, N. B., PEARCE, J. A. & TINDLE, A. G. 1986. Geochemical characteristics of collision-zone magmatism. In: COWARD, M. P. & RIES, A. C. (eds) Collision tectonics. Journal of the Geological Society. London. Special Publications, 19, 67-81.
30. _, GASS, I. G. & HAWKESWORTH, C. J. 1990. A geochemical approach to allochthonous terranes: a Pan-African case study. Philosophical Transactions of the Royal Society, London, A331, 533-548.
31. HART, S. R. 1988. Heterogeneous mantle domains: Signatures, genesis and mixing chronologies. Earth and Planetary Science Letters. 90, 273-296.
32. HASHAD, A. H. 1980. Present status of geochronological data on the Egyptian basement complex. Institute of Application Geology. Jeddah, 3, 31-46.
33. HASKIN, L., HASKIN, M. A., FREY, F. A. & WILDEMAN, T. R. 1968. Relative and absolute terrestrial abundances of the rare earths. In: AHRENS, L. H. (ed.) Origin and Distribution of the Elements. Pergamon Press. New York, 889-912.
34. HENJES-KUNST, F., ALTHERR, R. & BAUMANN, A. 1990. Evolution and composition of the lithospheric mantle underneath western Arabian peninsula: constraints from Sm-Nd isotopic systematics of mantle xenoliths. Contributions to Mineralogy and Petrology, 105, 460-472.
35. HUSSEIN, A. A., ALI, M. M. & EL-RAMLY, M. F. 1982. A proposed new classification of the granites of Egypt. Journal of Volcanology and Geothermal Research, 14, 187-198.
36. JACOBSEN, S. & WASSERBURG, G. J. 1984. Sm-Nd isotopic evolution in chondrites and achondrites. II. Earth and Planetary Science Letters. 67, 137-150.
37. KLEEMANN, G. L. & TWIST, D. 1989. The compositionally-zoned sheet-like granite pluton of the Bushveld complex: Evidence bearing on the nature of A-type magmatism. Journal of Petrology. 30, 1383-1414.
38. KLERKX, J. & DEUTSCH, S. 1977. Resultat preliminaires obtenus par la methode Rb/Sr sur l'age des formations Precambriennes de la region d'Uweinat (Libye): [Belgium] Musee Royale de l'Afrique Centrale Tervuren, Department des Geologie et Minerale, Rapport Annual, 83-94.
39. KRÖNER, A., GREILING, R. O., REISCHMANN, T., HUSSEIN, I. M., STERN, R. J., DURR, S., KRUGER, J. & ZIMMER, M. 1987. Pan-African crustal evolution in the Nubian segment of northeast Africa. In: KRÖNER, A. (ed.) Proterozoic Lithospheric Evolution. American Geophysical Union, Geodynamics Series, 17, 237-257.
40. _, TODT, W., HUSSEIN, I. M., MANSOUR, M. & RASHWAN, A. A. 1992. Dating of late Proterozoic ophiolites in Egypt and the Sudan using the single grain zircon evaporation technique. Precambrian Research. 59, 15-32.
41. MAHOOD, G. & HILDRETH, W. 1983. Large partition coefficients for trace elements in high-silica rhyolites. Geochimica et Cosmochimica Acta, 47, 11-30.
42. MCCULLOCH, M. T., GREGORY, R. T., WASSERBURG, G. J. & TAYLOR, H. P. 1980. A neodymium. strontium and oxygen isotopic study of the Cretaceous Samail Ophiolite and implications for petrogenesis and seawater-hydrothermal alteration of oceanic crust. Earth and Planetary Science Letters, 46, 210-211.
43. NAGASAWA, H. & SCHNETZLER, C. C. 1971. Partitioning of rare earth, alkali and alkaline elements between phenocrysts and acidic igneous magma. Geochimica et Cosmochimica Acta, 35, 953-968.
44. NAWAB, Z. A. 1979. Geology of the Al-Amar-Idsas region of the Arabian Shield. In: TAHOUN, S. A. (ed.) Evolution anil mineralization of the Arabian-Nubian Shield. Institut of Application of Geology, Pergamon Press. 2, 29-39.
45. NELSON, B. K. & DEPAOLO, D. J. 1985. Rapid production of continental crust 1.7 to 1.9 b. a. ago: Nd isotopic evidence from the basement of the North American mid-continent. Geological Society of America Bulletin, 96, 746-754.
46. PEARCE, J. A. 1980. Geochemical evidence for the genesis and eruptive setting of lavas from Tethyan ophiolites. In: Ophiolites: Proceedings of the International Ophiolite Symposium, Cyprus 1979, 261-272.
47. _, HARRIS, N. B. & TINDLE, A. G. 1984. Trace element discrimination diagrams for the tectonic interpretation of granitic rocks. Journal of Petrology, 25, 956-983.
48. PEGRAM, W. J., SANDO, T. W. & HODGES, K. V. 1980. Rare-earth element geochemistry and Nd isotopic composition of some Egyptian Younger Granites. Geological Society of America, Abstracts with programs, 12, 497.
49. RAGAB, A. I. 1987. The Pan-African basement of the northern segment of the Eastern Desert of Egypt: A crustal evolution model and its implication -stratigraphy and granite types. M. E. R. C. Ain Shd University, Cairo, Egypt, Earth Scientific Series 1, 1-18.
50. _, MENESY, M. Y. & DIAB, M. M. 1989. Petrology and petrogenesis of Older and Younger Granitoids of Wadi Beizah area. Central East Desert. Egypt. Journal of African Earth Science, 9, 303-315.
51. RAPP, R. P., WATSON, E. B. & MILLER, C. F. 1991. Partial melting amphibolite/eclogite and the origin of Archean trondhjemites a tonalites. Precambrian Research. 51, 1-25.
52. RIES, A. C., SHACKELTON, R. M., GRAHAM, R. H. & FITCHES, W. R. 198 Pan-African structures, ophiolites and melange in the Eastern Desert Egypt: a traverse at 26°N. Journal of the Geological Society. Londo 140, 75-95.
53. RUSHMER, T. 1991. Partial melting of two amphibolites: contrasti experimental results under fluid-absent conditions. Contributions Mineralogy and Petrology, 107, 41-59.
54. SAMSON, S. C. PATCHETT, P.J., MCCLELLAND, W. C. & GEHRELS, G. E. 199 Nd isotopic characterization of metamorphic rocks in the Coa Mountains, Alaskan and Canadian Cordillera: ancient crust bounded juvenile terranes. Tectonics. 10, 770-780.
55. SHACKLETON, R. M. 1979. Precambrian tectonics of northeast Africa, In: A SHANTI, A. M. S. (ed.) Evolution and mineralization of t Arabian-Nubian Shield, 2. Pergamon Press, Oxford. (Institute Applied Geology Bulletin, 3), 1-6.
56. _, RIES, A. C., GARAHAM, R. H. & FITCHES, W. R. 1980. Late Precambria ophiolitic melange in the Eastern Desert of Egypt. Nature, 285, 472-475
57. SHIMRON, A. E. 1984. Evolution of the Kid Group, southeast Sinai Peninsula Thrusts, melanges, and implications for accretionary tectonics during the Late Proterozoic of the Arabian-Nubian Shield. Geology. 12, 242-247.
58. STERN, R. J. 1981. Petrogenesis and tectonic setting of late Precambria ensimatic volcanic rocks. Central Eastern Desert of Egypt. Precambria Research. 16, 195-230.
59. _ & HEDGE, C. E. 1985. Geochronologic and isotopic constraints on Lat Precambrian crustal evolution in the Eastern Desert of Egypt. America Journal of Science, 285, 97-127.
60. _ & KRÖNER, A. 1993, Late Precambrian crustal evolution in NE Sudan Isotopic and geochronologic constraints. Journal of Geology. 101 555-574.
61. STOESER, D. E. & CAMP, V. E. 1985. Pan-African microplate accretion of the Arabian Shield. Geological Society of America Bulletin, 96, 817-826.
62. SULTAN, M., BICKFORD, M .E., EL-KKALIOUBY, B. & ARVIDSON, R. E. 1992. Common Pb systematics of Precambrian granitic rocks of the Nubia Shield (Egypt) and tectonic implications. Geological Society of Americ Bulletin, 104, 456-470.
63. SYLVESTER, P. J. 1989. Post-collision alkaline granites. Journal of Geology, 97. 261-280.
64. TARNEY, J., SAUNDERS, A. D., MATTEY, D. P., WOOD, D. A. & MARSH, N. G. 1981. Geochemical aspects of back-arc spreading in the Scotia Sea and Western Pacific. Philosophical Transactions of the Royal Society London. A300, 263-285.
65. VAIL, J. R. 1988. Tectonics and evolution of the Proterozoic basement of NE Africa and Arabia. In: EL-GABY, S. & GREILING, R. (eds) The Pan Africa Belt of NE Africa and Adjacent Areas. Earth and Evolutionary Science Vieweg, Wiesbaden, 195-226.