Structural relations and Pb-Pb zircon ages for the Makuti gneisses: Evidence for a crustal-scale Pan-African shear zone in the Zambezi Belt, northwest Zimbabwe

Journal of African Earth Sciences

Volumn 28, Issue 2, 1999, Pages 427-442

  Dirks, P H G M ^a   Kroner A ^b   Jelsma, H A ^a   Sithole, T A ^a,b   Vinyu, M L ^a  

^a UNIVERSITY OF ZIMBABWE   (Zimbabwe)

^b JOHANNES GUTENBERG UNIVERSITY   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

GNEISS; LEAD-LEAD DATING; PAN AFRICAN OROGENY;

ZIMBABWE;

EID: 0033080391     PISSN: 08995362     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0899-5362(99)00013-5     Document Type: Article

References (39)

1. Barton, C.M., Carney, J.N., Crow, M.J., Dunkley, P.N., Simango, S., 1991. The geology of the country around Rushinga and Nyamapanda. Bulletin 92, Zimbabwe Geological Survey, Harare, Zimbabwe. 220p.
2. Broderick, T.J., 1976. Explanation of the Geological Map of the Country East of Kariba. Zimbabwe Geological Survey, Harare, Zimbabwe. Short Report 43, 98p.
3. Carney, J.N., Treloar, P.J., Barton, C.M., Crow, M.J., Evans, J.A., Simango, S., 1991. Deep-crustal granulites with migmatitic and mylonitic fabrics from the Zambezi Belt, northeastern Zimbabwe. Journal Metamorphic Geology 9, 461-479.
4. Cocherie, A., Guerrot, C., Rossi, P., 1992. Single zircon dating by stepwise Pb evaporation: Comparison with other geochronological techniques applied to the Hercynian granites of Corsica, France. Chemical Geology 101, 131-141.
5. Coward, M.P., Daly, M.C., 1984. Crustal lineaments and shear zones in Africa: their relationship to plate movements. Precambrian Research 24, 27-45.
6. Daly, M.C., 1986. Crustal shear zones and thrust belts: their geometry and continuity in central Africa. Philosophical Transactions Royal Society London A317, 111 -128.
7. Daly, M.C., 1988. Crustal shear zones in central Africa: a kinematic approach to Proterozoic tectonics. Episodes 11, 5-11.
8. De Swardt, A.M.J., Garrard, P., Simpson, J.G., 1965. Major zones of transcurrent dislocation and superposition of orogenic belts in parts central Africa. Geological Society America Bulletin 76, 89-102.
9. De Wit, M., Jeffery, M., Bergh, H., Nicolaysen, L., 1988. Geological map of sectors of Gondwana. American Association Petroleum Geologists Tulsa, Oklah., USA.
10. Dirks, P.H.G.M., 1997. The Zambezi Belt in NW Zimbabwe: the Makuti Group. In: Dirks, P.H.G.M., Jelsma, H.A. (Eds.), The Zambezi Belt of Zimbabwe. Excursion guide, Geological Society Zimbabwe, Harare, pp. 14-26.
11. Dirks, P.H.G.M., Jelsma, H.A.J., Vinyu, M.L., Munyanyiwa, H., 1998. The structural history of the Zambezi belt in N E Zimbabwe: evidence for crustal extension during the early Pan African. Journal Geological Society South Africa, 101, 1-16.
12. Dirks, P.H.G.M., Kröner, A., Jelsma, H.A., Vinyu, M.L., 1997. The Makuti Group (NW Zimbabwe): a suture zone in the Zambezi Belt. In: Dirks, P.H.G.M., Jelsma, H.A. (Eds.), Abstracts, Intraplate Magmatism and Tectonics of southern Africa. Geological Society Zimbabwe, Harare, p. 12.
13. Fey, P., Broderick, T.J., 1990. Explanation of the Geological Map of the Country East of Makuti, Hurungwe District. Zimbabwe Geological Survey, Harare, Zimbabwe. Short Report 47, 84p.
14. Hahn, L., Höhndorf, A., Kreuzer, H., Resch, M., 1991. New geochronological data from the Zimbabwe Craton, Limpopo Belt, Zambezi Mobile Belt and from basic dykes. Geologische Jahrbuch A127, 519-552.
15. Hanson, R.E., Hargrove, U.S., Martin, M.W., Bowring, S.A., Krol, M.A., Munyanyiwa, H., Blenkinsop, T.G., 1998. New geochronological constraints on the tectonic evolution of the Pan-African Zambezi Belt, south central Africa. Journal African Earth Sciences 27 (1A), 104.
16. Hanson, R.E., Wardlaw, M.S., Wilson, T.J., Mwale, G., 1993. U-Pb zircon ages from the Hook granite massif and Mwembeshi dislocation: Constraints on Pan-African deformation, plutonism, and transcurrent shearing in central Zambia. Precambrian Research 63, 189-209.
17. Hanson, R.E., Wilson, T.J., Munyanyiwa, H., 1994. Geologic evolution of the Neoproterozoic Zambezi Orogenic Belt in Zambia. Journal African Earth Sciences 18, 135-150.
18. Hanson, R.E., Wilson, T.J., Wardlaw, M.S., 1988. Deformed batholiths in the Pan-African Zambezi belt, Zambia: age and implications for regional Proterozoic tectonics. Geology 16, 1134-1137.
19. Jaeckel, P., Kröner, A., Kamo, S.L., Brandl, G., Wendt, J.I., 1997. Late Archaean to early Proterozoic granitoid magmatism and high-grade metamorphism in the central Limpopo Belt, South Africa. Journal Geological Society London 154, 25-44.
20. Johnson, R.L., Vail, J.R., 1965. The junction between the Mozambique and Zambezi Orogenic Belts, NE Southern Rhodesia. Geological Magazine 102, 489-495.
21. Karabinos, P., 1997. An evaluation of the single-grain zircon evaporation method in highly discordant samples. Geochimica Cosmochimica Acta 61, 2467-2474.
22. 206Pb-age investigations on single zircons using a double-filament thermal ion source. Contributions Mineralogy Petrology 93, 482-490.
23. 206Pb-age investigations using thermal ion source mass spectrometry, and implications to zirconology. Contributions Mineralogy Petrology 96, 63-71.
24. Kröner, A., 1990. Pan-African Crustal Evolution. Episodes 2, 3-8.
25. Kröner, A., Byerly, C.R., Lowe, D.R., 1991. Chronology of early Archaean granite-greenstone evolution in the Barberton Mountain Land, South Africa, based on precise dating by single zircon evaporation. Earth Planetary Science Letters 103, 41-54.
26. Kröner, A., Hegner, E., in press. Geochemistry, single zircon ages and Sm-Nd systematics of granitoid rocks from the Góry Sowie (Owl Mts.), Polish West Sudetes: evidence for early Palaeozoic arc-related plutonism. Journal Geological Society London.
27. Kröner, A., Todt, W., 1988. Single zircon dating constraining the maximum age of the Barberton greenstone belt, Southern Africa. Journal Geophysical Research 93, 15, 329-15, 337.
28. Loney, P.E., 1969. The geology of Kariba District, Rhodesia, with special reference to geochemistry and amphibolite petrochemistry. Ph.D. dissertation, Leeds University, Leeds, UK.
29. Munyanyiwa, H., 1995. The metamorphic and structural geology and geochronology of the Magondi and Zambezi Mobile belts, NW Zimbabwe. Ph.D. dissertation, University of Zimbabwe, Harare, Zimbabwe.
30. Munyanyiwa, H., Blenkinsop, T.G., 1994. Pan-African structures and metamorphism in the Makuti Group, north-west Zimbabwe. Journal African Earth Sciences 19, 185-198.
31. Munyanyiwa, H., Hanson, R.E., Blenkinsop, T.G., Treloar, P.J., 1997. Geochemistry of amphibolites and quartzofeldspathic gneisses in the Pan-African Zambezi belt, NW Zimbabwe: evidence for bimodal magmatism in a continental rift setting. Precambrian Research 81, 179-196.
32. Pinna, P., Jourde, G., Calvez, J.Y., Mroz, J.P., Marques, J.M., 1993. The Mozambique Belt in northern Mozambique: Neoproterozoic (1100-850 Ma) crustal growth and tectogenesis, and superimposed Pan-African (800-550 Ma) tectonism. Precambrian Research 62, 1-59.
33. Shackleton, R.M., 1986. Precambrian collision tectonics in Africa. In: Coward, M.P., Ries, A.C. (Eds.), Collision tectonics. Geological Society London, Special Publication 19, 329-349.
34. Sithole, T.A., Dirks, P.H.G.M., Passchier, C.W., 1997. The Makuti Group; A Neoproterozoic supracrustal sequence or crustal-scale shear zone within the Zambezi Mobile Belt. In: Dirks, P.H.G.M., Jelsma, H.A. (Eds.), Abstracts, Intraplate Magmatism and Tectonics of southern Africa. Geological Society Zimbabwe, Harare, pp. 46-47.
35. Stern, R.J., 1994. Arc assembly and continental collision in the Neoproterozoic East African Orogen: implications for the consolidation of Gondwanaland. Annual Review Earth Planetary Science 22, 319-351.
36. Thomas, R.J., von Veh, M.W., McCourt, S., 1993. The tectonic evolution of southern Africa: an overview. Journal African Earth Sciences 16, 5-24.
37. Treloar, P.J., Carney, J.N., Crow, M.J., Evans, J.A., Barton, C.M., 1990. Pressure-Temperature-time paths of granulite facies metamorphism and uplift, NE Zimbabwe. In: Vielzeuf, D., Vidal, P. (Eds.), Granulites and crustal evolution. Kluwer, Amsterdam, pp. 223-241.
38. Vinyu, M.L., Martin, M.W., Bowring, S., Hanson, R., Jelsma, H.A., Dirks, P.H.G.M., 1997. Tectonothermal evolution of the polymetamorphic Zambezi Belt in NE Zimbabwe: constraints from U-Pb single grain zircon data. In: Dirks, P.H.G.M., Jelsma, H.A. (Eds.), Abstracts, Intraplate Magmatism and Tectonics of southern Africa. Geological Society Zimbabwe, Harare, p. 52.
39. Wilson, T.J., Hanson, R.E., Wardlaw, M.S., 1993. Late Proterozoic evolution of the Zambezi Belt, Zambia: Implications for regional Pan-African tectonics and shear displacements in Gondwana. In: Findlay, R.H., Unrug, R., Banks, M.R., Veevers, J.J. (Eds.), Gondwana eight: Assembly, evolution and dispersal. A.A. Balkema, Rotterdam, pp. 69-82.