A pan African layered mafic-ultramafic cumulate complex in the SW sinai massif: Mineralogy, geochemistry and crustal growth

Chemie der Erde

Volumn 57, Issue 2-3, 1997, Pages 137-156

  Essawy, Mohamed A ^b,c   El Metwally, Ahmed A ^b,c   Althaus, Egon ^a  

^a UNIVERSITY OF KARLSRUHE   (Germany)

^b MANSOURA UNIVERSITY   (Egypt)

^c Mansoura University   (Egypt)

Author keywords

[No Author keywords available]

Indexed keywords

CUMULATE; GEOCHEMISTRY; IGNEOUS LAYERING; PAN AFRICAN OROGENY; PETROGENESIS; PETROLOGY;

EGYPT, SINAI MASSIF;

EID: 0031466374     PISSN: 00092819     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (38)

1. AUGE, T.: Chromite deposits in the northern Oman ophiolites; mineralogical constraints. Miner. Deposita, 22 (1987), 1-10.
2. BAKER, A. R., GASS, I. G. and NEARY, C. G.: Jabal Al-Wasak, Northwest Saudia Arabia: An Eocambrian backarc ophiolite. Earth Plant. Sci. lett., 30 (1987), 1-9.
3. BARTON, M. and SIDE, W.: Petrographical and geochemical evidence for granitoid formation. The Waldoboro Pluton Complex, Maine. J. Petrology, Vol. 35, Part 5, pp. (1994), 1241-1274.
4. BROWN, G. M.: Pyroxenes from the early middle stages of intrusion. East Greenland. Miner. Mag., 31 (1957), 511-543.
5. BROWN, G. M. and VINCENT, E. A.: Pyroxenes from the late stages of fractionation of the Greenland. J. Petrology, 4 (1963), 175-197.
6. CAMERON, E. N.: Titanium - bearing oxides minerals of the critical zone of the eastern Bushveld Complex. Am. Mineral., 64(1979), 140-150.
7. CARMICHAEL, I. S. E.: The iron - titanium oxides of salic volcanic rock and their associated ferromagnesian silicates. Contrib. Mineral. Petrol. 14 (1967), 36-64.
8. CHALLIS, G. A.: The origin of the New Zealand ultramafic intrusions. J. Petrol., 6 (1965), 322-364.
9. COLEMAN, R. G.: Ophiolites. Springer Verlag, Berlin (1977).
10. Dt BARI, B. M. and RAY, R. W.: Ultramafic xenoliths from Adagdak volcano, Adak, Aleutian Islands, Alaska: Igneous cumulates from the Moha of an island arc. J. Geol., 95 (1987), 329-341.
11. DE BARI. S. M. and COLEMAN, R. G.: Examination of the deep levels of an island arc: Evidence from the Tonsina ultramafic-mafic assemblage, Tonsina, Alaska. J. Geophys. Res., 94 (1989), 4373-4391.
12. DICK, H. J. B.: Partial melting in the Josephine peridotite-I, The effect of mineral composition and its consequence for geobarometry and geothermometry. Am. J. Sci., 227 (1977), 801-832.
13. DICK, H. J. B. and BULLEN, T.: Chromian spinel as a petrogenetic indicator in alpine-type peridotites and associated lavas. Contrib. Mineral. Petrol., 86 (1984), 54-76.
14. EL-METTWAEY, A. A.: Pan-African post-orogenic gabbro cumulates from Sinai massif, Egypt: Geochemistry and mineral chemistry. J. African Earth Sciences, 14 (1992), 217-225.
15. EL-RAMEY, M. F.: A new geological map of the basement rocks in the Eastern and South-western Deserts of Egypt. Annals. Geol. Surv. Egypt, 2 (1972), 1-18.
16. ESSAWY, M. A. and EL-METTWALY, A.: Feiran mafic-ultramafic complex: three episode crustal evolution in the southwestern Sinai Shield. J. African Earth Sci., 14 (1992), 471-476.
17. FRIZ, A.: Mineralogie und Geochemie pan-afrikanischer Ganggesteinc der südlichen Sinai-Halbinsel. Ph.D. Dissertation, Karlsruhe (1987), 131p.
18. GREEN, D. H.: The petrogensis of the high-temperature peridotite inclusion in the Lizard area, Cornwall. J. Petrol, 5(1964), 143-188.
19. HELZ, H.: Experimental melting studies on a model upper mantle composition at high premature under watersaturated and water undersaturated conditions. Earth Planet Sci. Lett., 19 (1973), 37-53.
20. HERBERT, R.: Petrography and mineralogy of oceanic peridotites and gabbros. Some comparisons with ophio-lites examples. Ofioliti, 7 (1982), 299-324.
21. HIMMELBERG, G. R. and LONEY, R. A.: Petrology of ultramafic and gabbric rocks of Canyon Mountain Ophiolite Oregon. Am. J. Sci. 280-A (1980), 322-268.
22. IRVINE, T. N.: Rocks whose compositions are determined by crystal accumulation and sorting. In: Evolution of the igneous rocks (H. S. Jr. YODER ed.) p. (1979), 245-306. Fiftieth Anniversary Perspectives: Princeton, Princeton Univ. Press.
23. IRVINE, T. N.: Magmatic infiltration metasomatism, double-diffusive fractional crystallization and adcumulus growth in the Muskox Intrusion and other layered intrusions. In: Physics of magmatic processes (R. B. HAGRAVES, ed.), p. (1980), 325-384. Princeton Univ. Press.
24. 2O = 5 K bar an equilibrium problem. Cont. Miner. Petrol., 66 (1978). 295-303.
25. KORNPROBST, J., OHNENSTETTER, D. and OHNENSTETTER, M.: Na and Cr contents in clinopyroxenes from peri-dotites: A possible discriminate between "sub-continental" and "sub-oceanic" mantle. Earth Plant. Sci. Lett., 53 (1981), 241-254.
26. KRÖNER. A., EYAL, M. and EYAL. Y.: Early Pan-African evolution of the basement around Elat. Israel, and the Sinai Peninsula revealed by single-zircon evaporation dating and implications for crustal accretion rates. Geology, 18 (1990). 545-548.
27. LEAKE, B. E.: Nomenclature of amphiboles. Mineral Mag. 42 (1978), 533-563.
28. LETERRIER, J., MAURY, R. C., THONON, P., GIRARD, D. and MARCHALL, M.: Clinopyroxene composition as a method of identification of the magmatic affinities of paleo-volcanic series. Earth Planet. Sci. Lett., 59 (1982), 139-145.
29. MCSWEEN and NYSTROM (1979): in BARTON and SIDE (1994).
30. O'HARA, M.: Geochemical evolution during fractional crystallization of a periodically refilled magma chamber. Nature, 226 (1977), 503-507.
31. OZAWA. K.: Ultramafic tectonite of the Miyamori ophiolitic complex in the Kitakami Montains, Northeast Japan: hydrous upper mantle in an island arc. Contrib. Mineral. Petrol., 99 (1988), 159-175.
32. ROOBOL, M. J., RAMSAY. C. R., JACKSON, N. J. and DARBYSHIRE, D. P. F.: Late proterozoic lavas of the Central Arabian Shield - evolution of an ancient volcanic arc system. J. Geol. Soc. London, 140 (1983), 185-202.
33. SATO, T.: Nickel content of basaltic magma and a measure of the degree of olivine fractionation. Lithos, 10 (1977), 113-120.
34. SEYLER, M. and MATTSON.,P. H.: Gabbroic and pyroxenite layers in the Tinaquillo. Venezuela, perodotite: Succession of melt intrusions in a rising mantle diapir. J. Petrol., 101 (1993), 501-511.
35. STERN, R. J., MANTON, W. I., KRÖNER, A., RECHMANN, T. and HUSSEN, L: Rb-Sr and U-Pb geochronology constaints on late precambrian cruslal evolution in northeast Sudan. 28th Int. Geol. Cong., Washington, D. C. July 9-19, Abstracts, 3 (1989), 178-179.
36. THOMPSON, R. N.: Magmatism of the British Tertiary volcanic province. Scott. J. Geol., 18 (1982). 50-107.
37. VAIL, J. R.: Tectonics and evolution of the Proterozoic basement of northeastern Africa. In: The Pan African belt of Northeast Africa and adjacent areas (S. EL-GABY & R. GREILING eds.) pp. (1988), 195-226. Friedr. Vieweg & Sohn. Braunschweig/Wiesbaden.
38. WILSON, A. H.: The geology of the Great Dyke. Zimbabwe: the ultramafic rocks. J. Petrol., 23 (1982), 240-292.