Geochemistry of Neoproterozoic granitoids from the Axum area, northern Ethiopia

Journal of African Earth Sciences

Volumn 27, Issue 3-4, 1998, Pages 437-460

  Tadesse Alemu, A ^a,b  

^a GEOLOGICAL SURVEY OF ETHIOPIA   (Ethiopia)

^b UNIVERSITY OF VIENNA   (Austria)

Author keywords

[No Author keywords available]

Indexed keywords

GRANITOID; IGNEOUS GEOCHEMISTRY; MAGMATISM; PETROGENESIS; PROTEROZOIC;

ETHIOPIA;

EID: 0032469304     PISSN: 08995362     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0899-5362(98)00072-4     Document Type: Article

References (37)

1. Arth, J. G. and Hanson, G. N. 1972. Quartz diorites derived by partial melting of eclogite or amphibolite at mantle depth. Contributions Mineralogy Petrology 37, 161-174.
2. Atherton, M. P., McCourt, W. J., Sanderson, L. M. and Taylor, W. P. 1979. The geochemical character of the segmented Peruvian coastal batholith and associated volcanics. In: Origin of granitic batholiths-Geochemical Evidence (Edited by Atherton, M. P. and Tarney, J.) pp65-75. Shiva Publishing, UK.
3. Ayalew, T. W., Bell, K., Moore, J. and Parrish, R. 1990. U-Pb and Rb-Sr geochronology of the western Ethiopia Shield. Geological Society America Bulletin 102, 1309-1316.
4. Barker, F. 1979. Trondhjemite-definition, environment and hypotheses of origin. In: Trondhjemites, dacites, and Related Rocks (Edited by Barker, F.) pp1-11. Elsevier, Amsterdam.
5. Batemann, P. C. and Dodge, F. C. 1970. Variations of major chemical constituents across the central Sierra Nevada batholith, California. Geological Society America Bulletin 81, 409-420.
6. Berhe, S. M. 1990. Ophiolites in Northeast and East Africa: implications for Proterozoic crustal growth. Journal Geological Society London 147, 41-57.
7. Beyth, M. 1971. The geology of central-western Tigre. Ethiopian Institute of Geological Surveys, Addis Ababa, Ethiopia.
8. Chivas, A. R. 1978. Porphyry copper mineralization at the Koloula igneous complex, Guadalcanal, Solomon Islands. Economic Geology 73, 645-677
9. Drury, S. A. and Berhe, S. M. 1993. Accretion tectonics in northern Eritrea Revealed by remotely sensed imagery. Geological Magazine 130, 177-190.
10. Elburg, M. A. 1996. Evidence of isotopic equilibration between microgranitoid enclaves and host granodiorite, Warburton Granodiorite, Lachlan Fold Belt, Australia. Lithos 38, 1-22.
11. Garland, C. R. 1980. Geology of the Adigrat Area. Ethiopian Institute of Geological Surveys Memoir 1, 52p. Addis Ababa, Ethiopia.
12. Gass, I. G. 1977. The evolution of the Pan-African crystalline basement in NE Africa and Arabia. Journal Geological Society London 134, 129-138.
13. Gichile, S. and Fyson, W. K. 1993. An inference of the tectonic setting of the Adola Belt of southern Ethiopia from the geochemistry of magmatic rocks. Journal African Earth Sciences 16, 235-246.
14. Gill, J. B. and Stork, A. L. 1979. Miocene low-K dacites and trondhjemites of Fiji. In: Trondhjemites, dacites and related rocks (Edited by Barker, F.) pp629-649. Elsevier, Amsterdam.
15. Hine, R. and Mason, D. R. 1978. Intrusives rock associated with porphyry copper mineralization, New Britain, Papua New Guinea. Economic Geology 73, 749-760.
16. Irvine, T. N. and Baragar, W. R. A. 1971. A guide to the chemical classification of the common volcanic rocks. Canadian Journal Earth Sciences 8, 523-528.
17. Jackson, N. J. 1986. Petrogenesis and evolution of Arabian felsic plutonic rocks. Journal African Earth Sciences 4, 47-59.
18. Jackson, N. J., Walsh, J. N. and Pegram, E. 1984. Geology, geochemistry and petrogenesis of Late Precambrian granitoids in the central Hijaz region of the Arabian Shield. Contributions Mineralogy Petrology 87, 205-219.
19. Koeberl, C. 1993. Instrumental Neutron Activation Analysis of geochemical and cosmochemical samples: a fast and reliable method for small sample analysis. Journal Radioanalytical Nuclear Chemistry 168, 47-60.
20. Koeberl, C. 1994. Neutron Activation Analysis. In: Advanced Mineralogy, Vol. 2 (Edited by Marfunin, A.) pp 322-329. Springer Verlag, Berlin.
21. Kröner, A. 1977. The Precambrian geotectonic evolution of Africa: plate accretion versus plate destruction. Precambrian Research 4, 163-213.
22. Kröner, A. 1979. Pan-African mobile belts as evidence for a transitional tectonic regime from intraplate orogeny to plate margin orogeny. In: Evolution and mineralization of the Arabian-Nubian Shield. 1, 21-37. Institute of Applied Geology, King Abdulaziz University, Jeddah.
23. Kröner, A., Linnebacher, P., Stern, R. J., Reischmann, T., Manton, W. and Hussein, I. M. 1991. Evolution of Pan-African island-arc assemblages in the southern Red Sea Hills, Sudan, and in southeastern Arabia exemplified by geochemistry and geochronology. Precambrian Research 53, 99-118.
24. Mehari, K. and Belayneh, M. 1993. The geology of Subsheets R and X, Axum Sheet ND37-6. Unpublished report, Ethiopian Institute of Geolological Surveys, Addis Ababa, Ethiopia.
25. Nisbet, E. G., Dietrich, V. J. and Esenwein, A. 1979. Routine trace element determination in silicate minerals and rocks by X-ray fluorescence. Fortschritte Mineralogie 57, 264-279.
26. Pearce, J. A., Harris, N. B. W. and Tindle, A. G. 1984. Trace element discrimination diagrams for the tectonic interpretation of granitic rocks. Journal Petrology 25, 956-983.
27. Pouchou, J. L. and Pichoir, F. 1984. A new model for quantitative X-ray microanalysis. Recherche Aerospatiale 3, 167-192.
28. Stern, R. J. 1981. Petrogenesis and tectonic setting of Late Precambrian ensimatic volcanic rocks. Central Eastern Desert of Egypt. Precambrian Research 16, 195-230.
29. Streckeisen, A. 1976. To each plutonic rock its proper name. Earth Sciences Review 12, 1-33.
30. Tadesse, T. 1994. Stratigraphic and Structural development of the Upper Proterozoic rocks of Axum Area, Northern Ethiopia. In: Proceedings of the IGCP 348 international field conference. pp43-46. East Africa, Tanzania.
31. Tadesse-Alemu, A. 1997. Petrology, geochemistry and geochronology of granitoids from the Axum area, Northern Ethiopia. M. Sc. thesis (unpubl.) 106p. University of Vienna, Austria.
32. Tadesse-Alemu, A., Hailemariam, M. and Kabeto, K. 1993. The Geology of Subsheets S and Y; and southeastern subsheet M, Axum Sheet ND37-6. Unpublished report, Ethiopian Institute of Geological Surveys, Addis Ababa, Ethiopia.
33. Taylor, S. R. and McLennan, S. M. 1985. The continental crust; Its composition and evolution. 312p. Blackwell, Oxford.
34. Vail, J. R. 1983. Pan-African crustal accretion in northeast Africa. Journal African Earth Sciences 1, 285-294.
35. Vail, J. R. 1985. Pan-African (late Precambrian) tectonic terrains and the reconstruction of the Arabian-Nubian Shield. Geology 13, 839-842.
36. Vidal, P., Cocherie, A. and LeFort, P. 1982. Geochemical investigations of the Manaslu leucogranite (Himalaya, Nepal). Geochimica Cosmochimica Acta 46, 2279-2292.
37. White, A. J. R. and Chappell, B. W. 1983. Granitoid types and their distribution in the Lachlan Fold Belt, southeastern Australia. Geological Society America, Memoir 159, 21-34.