P-T-t evolution and textural evidence for decompression of Pan-African high-pressure granulites, Lurio Belt, north-eastern Mozambique

Journal of Metamorphic Geology

Volumn 25, Issue 9, 2007, Pages 935-952

  Engvik, Ane K ^a   Tveten, E ^a   Bingen, B ^a   Viola, G ^a   Erambert, M ^b   Feito, P ^c   De Azavedo, S ^c  

^a GEOLOGICAL SURVEY OF NORWAY   (Norway)

^b UNIVERSITY OF OSLO   (Norway)

^c National Directorate of Geology   (Mozambique)

Author keywords

Corona textures; High pressure granulites; Isothermal decompression; Lurio Belt; Pan African

Indexed keywords

CRYSTALLIZATION; DECOMPRESSION; GEOCHEMISTRY; GRANULITE; HIGH PRESSURE; P-T-T PATH; TEXTURE; ZONING;

AFRICA; MOZAMBIQUE; SOUTHERN AFRICA; SUB-SAHARAN AFRICA;

EID: 36248963663     PISSN: 02634929     EISSN: 15251314     Source Type: Journal    
DOI: 10.1111/j.1525-1314.2007.00736.x     Document Type: Article

References (60)

1. Austrheim, H., Erambert, M. & Engvik, A. K., 1997. Processing of crust in the root of the Caledonian continental collision zone: The role of eclogitization. Tectonophysics, 273, 129-153.
2. Bingen, B., Skår, Ø., Marker, M. et al., 2005. Timing of continental building in the Sveconorwegian orogen, SW Scandinavia. Norwegian Journal of Geology, 85, 87-116.
3. Bingen, B., Viola, G., Henderson, I. H. C. et al., 2006. Pan-African Terrain Assembly in the Mozambique Belt: A Geochronological Perspective from Northern Mozambique. CAG21, Abstract Volume, pp. 12-14. Maputo, Mozambique.
4. Bisnath, A. & Frimmel, H. E., 2005. Metamorphic evolution of the Maud Belt: P-T-t path for high-grade gneisses in Gjelsvikfjella, Dronning Maud Land, East Antarctica. Journal of African Earth Sciences, 43, 505-524.
5. Bjerkgård, T., Bingen, B., Boyd, R. et al., 2006a. Monrtepuez 1:250 000 Map Sheet. Mineral Resources Management Capacity Building Project. Component 2: Geological Infrastructure Development Project: Geological Mapping (LOT 1). National Directorate of Geology, Maputo, Mozambique.
6. Bjerkgård, T., Key, R. M., Boyd, R. et al., 2006b. Mecufi 1: 250 000 map sheet. Mineral Resources Management Capacity Building Project. Component 2: Geological Infrastructure Development Project: Geological Mapping (LOT 1). National Directorate of Geology, Maputo, Mozambique.
7. Board, W. S., Frimmel, H. E. & Armstrong, R.A., 2005. Pan-African Tectonism in the Western Maud Belt: P-T-t path for high-grade gneisses in the H.U. Sverdrupfjella, East Antarctica. Journal of Petrology, 46, 671-699.
8. Bohlen, S. R., 1991. On the formation of granulites. Journal of Metamorphic Geology, 9, 223-230.
9. Brown, M., 2002. Retrograde processes in migmatites and granulites revisited. Journal of Metamorphic Geology, 20, 25-40.
10. Bucher-Nurminen, K. & Ohta, Y. 1993. Granulites and garnet-cordierite gneisses from Dronning Maud Land, Antarctica. Journal of Metamorphic Geology, 11, 691-703.
11. Collins, A. S. & Pisarevsky, S. A., 2005. Amalgamating eastern Gondwana: The evolution of the Circum-Indian Orogens. Earth Science Reviews, 71, 229-270.
12. Cygan, R. T. & Lasaga, A. C., 1985. Self-diffusion of magnesium in garnet at 750° to 900 °C. American Journal of Science, 285, 328-350.
13. de Wit, M. J., Bowring, S. A., Ashwal, L. D., Randrianasolo, L. G., Morel, V. P. I. & Rambeloson, R. A., 2001. Age and tectonic evolution of Neoproterozoic ductile shear zones in southwestern Madagascar, with implications for Gondwana studies. Tectonics, 20, 1-45.
14. Elvevold, S., Thrane, K. & Gilotti, J. A., 2003. Metamorphic history of high-pressure granulites in Payer Land, Greenland Caledonides. Journal of Metamorphic Geology, 21, 49-63.
15. Engvik, A. K. & Elvevold, S. 2004. Pan-African extension and near-isothermal exhumation of a granulite facies terrain, Dronning Maud Land, Antarctica. Geological Magazine, 141, 649-660.
16. Engvik, A. K., Austrheim, H. & Andersen, T. B., 2000. Structural, mineralogical and petrophysical effects on deep crustal rocks of fluid-limited polymetamorphism, Western Gneiss Region, Norway. Journal of Geological Society, London, 157, 121-134.
17. Engvik, A. K., Austrheim, H. & Erambert, M. 2001. Interaction between fluid flow, deformation and mineral growth, an example from the Sunnfjord area, Western Gneiss Region, Norway. Lithos, 57, 111-141.
18. Erambert, M. & Austrheim, H., 1993. The effect of fluid and deformation on zoning and inclusion pattern in polymetamorphic garnets. Contributions to Mineralogy and Petrology, 115, 204-214.
19. Fritz, H., Tenczer, V., Hauzenberger, C. A. et al., 2005. Central Tanzanian tectonic map: A step forward to decipher Proterozoic structural events in the East African Orogen. Tectonics, 24, TC6013.
20. Green, D. H. & Ringwood, A. E., 1967. An experimental investigation of the gabbro to eclogite transformation and its petrological application. Geochimica et Cosmochemicia Acta, 31, 767-833.
21. Griffin, W. L., 1971. Mineral reactions at a peridotite-gneiss contact, Jotunheimen, Norway. Mineralogical Magazine, 38, 435-445.
22. 2. Contributions to Mineralogy and Petrology, 76, 234-242.
23. Harley, S. L., 1989. The origin of granulites: A metamorphic prospective. Geological Magazine, 126, 215-247.
24. Harley, S. L., 2003. Archaean-Cambrian crustal development in East Antarctica: Metamorphic characteristics and tectonic implications. In: Proterozoic East Gondwana: Supercontinent Assembly and Breakup, Special Publication 206 (eds Yoshida, M., Windley, B.F. & Dasgupta, S.), pp. 203-230. Geological Society, London.
25. Henderson, I., Viola, G. & Feito, P., 2006. Conjugate Shear Zones as Crustal-Scale Pure-Shear Accommodation Structures: An Example from Northern Mozambique. CAG21, Abstract Volume, pp. 62-64. Maputo, Mozambique.
26. Hensen, B. J., Zhou, B. & Thost, D. E., 1995. Are reaction textures reliable guides to metamorphic histories? Timing constraints from garnet Sm-Nd chronology for "decompression" textures in granulites from Søstrene Island, Prydz Bay, Antarctica. Geological Journal, 30, 261-271.
27. Holland, T. J. B. & Powell, R., 1998. An internally consistent thermodynamic data set for phases of petrological interest. Journal of Metamorphic Geology, 16, 309-343.
28. Hollick, L., Bauer, W., de Sousa Soares, H. et al. 2006. Structural Evolution in N Mozambique -Milange, Mocuba and Insaca-Gurue Sheets. CAG21, Abstract Volume, pp. 68-70. Maputo, Mozambique.
29. Indares, A. D., 2003. Metamorphic textures and P-T evolution of high-P granulites from the Lelukuau terrane, NE Grenville Province. Journal of Metamorphic Geology, 21, 35-48.
30. Ito, K. & Kennedy, G. C., 1971. An experimental study of the basalt-garnet granulite-eclogite transition. In: The Structure and Physical Properties of the Earth's Crust (ed. Heacock, J. G.), pp. 303-314. Monograph no. 14. American Geophysical Union, Washington, DC.
31. Jackson, S. E., Pearson, N. J., Griffin, W. L. & Belousova, E. A., 2004. The application of laser ablation-inductively coupled plasma-mass spectrometry to in situ U-Pb zircon geochronology. Chemical Geology, 211, 47-69.
32. Jacobs, J. & Thomas, R. J., 2004. Himalayan-type indenter-escape tectonics model for the southern part of the late Neoproterozoic-early Paleozoic East-African-Antarctic Orogen. Geology, 32, 721-724.
33. Jacobs, J., Fanning, C. M., Henjes-Kunst, F., Olesch, M. & Paech, H.-J., 1998. Continuation of the Mozambique Belt into East Antarctica: Grenville-Age metamorphism and polyphase Pan-African high-grade events in Central Dronning Maud Land. Journal of Geology, 106, 385-406.
34. Jacobs, J., Klemb, R., Fanning, C. M., Bauer, W. & Colombo, F., 2003. Extensional collapse of the late Neoproterozoic-Early Paleozoic East African-Antarctic Orogen in central Dronning Maud Land, East Antarctica. In: Proterozoic East Gondwana: Supercontinent Assembly and Breakup, Special Publication 206 (eds Yoshida, M., Windley, B.F. & Dasgupta, S.), pp. 271-288. Geological Society, London.
35. Jiang, J. & Lasaga, A. C., 1990. The effect of post-growth thermal events on growth-zoned garnet: Implications for metamorphic P-T history calculations. Contributions to Mineralogy and Petrology, 105, 454-459.
36. Johannes, W. & Holtz, F., 1996. Petrogenesis and Experimental Petrology of Granitic Rocks. Springer-Verlag, Heidelberg.
37. Kretz, R., 1983. Symbols for rock-forming minerals. American Mineralogist, 68, 277-279.
38. Kröner, A., Willner, A. P., Hegner, E., Jaeckel, P. & Nemchin, A. A., 2001. Single zircon ages, PT evolution and Nd isotopic systematics of high-grade gneisses in southern Malawi and their bearing on the evolution of the Mozambique belt in southeastern Africa. Precambrian Research, 109, 257-291.
39. Leake, B. E., Woolley, A. R., Arps, C. E. S. et al., 1997. Nomenclature of amphiboles: Report of the Subcommittee on Amphiboles of the International Mineralogical Association, Commission on New Mineral Names. American Mineralogist, 82, 1019-1037.
40. Mørk, M. B. E., 1986. Coronite and eclogite formation in olivine gabbro (Western Norway): Reaction paths and garnet zoning. Mineralogical Magazine, 56, 417-426.
41. Meert, J. G., 2003. A synopsis of events related to the assembly of Gondwana. Tectonophysics, 362, 1-40.
42. Muhongo, S. & Lenoir, J.-L., 1994. Pan-African granulite facies metamorphism in the Mozambique Belt of Tanzania: U-Pb zircon geochronology. Journal of the Geological Society, London, 151, 343-347.
43. Norconsult Consortium, 2007. Mineral resources management capacity building project, Republic of Mozambique; Component 2: Geological infrastructure development project, Geological Mapping Lot 1; Sheet explanation: 32 sheets; scale: 1/250000, 778 pp. + annexes. Credit No. NDF335, Report No. B6.f., National Directorate of Geology, Republic of Mozambique.
44. O'Brien, P. J. & Rötzler, J. 2003: High-pressure granulites: formation, recovery of peak conditions and implications for tectonics. Journal of Metamorphic Geology, 21, 3-20.
45. Pattison, D. R. M., 2003. Petrogenetic significance of orthopyroxene-free garnet + clinopyroxene + plagioclase ± quartz-bearing metabasites with respect to the amphibolite and granulite facies. Journal of Metamorphic Geology, 21, 3-20. garnet + clinopyroxene + plagioclase ± quartz-bearing metabasites with respect to the amphibolite and granulite facies
46. 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.
47. Pouchou, J. P. & Pichoir, F. 1984. Cameca PAP program. La Recherche Aerospatiale, 3, 167-192.
48. Ring, U., Kröner, A., Buchwaldt, R., Toulkeridis, T. & Layer, P. W. 2002. Shear-zone patterns and eclogite facies metamorphism in the Mozambique belt of northern Malawi, east-central Africa: Implications for the assembly of Gondwana. Precambrian Research, 116, 19-56.
49. Rubie, D. C., 1990. Role of kinetics in the formation and preservation of eclogites. In: Eclogite Facies Rocks (ed. Carswell, D.A.), pp. 180-203. Blackie & Son, Glasgow.
50. Shervais, J. W., Dennis, A. J., McGee, J. J., Secor, D., 2003. Deep in the heart of Dixie: Pre-Alleghanian eclogite and HP granulite metamorphism in the Carolina Terrane, South Carolina, USA. Journal of Metamorphic Geology, 21, 65-80.
51. Sommer, H., Kröner, A., Hauzenberger, C., Muhongo, S. & Wingate, M. T. D., 2003. Metamorphic petrology and zircon geochronology of high-grade rocks from the central Mozambique Belt of Tanzania: crustal recycling of Archean and Palaeoproterozoic material during the Pan-African orogeny. Journal of Metamorphic Geology, 21, 915-934.
52. Sommer, H., Kröner, A., Hauzenberger, C. & Muhongo, S., 2005. Reworking of Archaean and Palaeoproterozoic crust in the Mozambique belt of central Tanzania as documented by SHRIMP zircon geochronology. Journal of African Earth Sciences, 43, 447-463.
53. Spear, F. S., 1993. Metamorphic Phase Equilibria and Pressure-Temperature-Time Paths. Monograph. Mineralogical Society of America, Washington, DC.
54. Spear, F. S. & Florence, F. P., 1992. Thermobarometry in granulites: pitfalls and new approaches. Journal of Precambrian Research, 55, 209-241.
55. Spear, F. S., Kohn, M. S., Florence, F. & Menard, T., 1990. A model for garnet and plagioclase growth in pelitic schists: Implications for thermobarometry and P-T path determinations. Journal of Metamorphic Geology, 16, 683-696.
56. Spear, F. S. & Selverstone, J. 1983. Quantitative P-T paths from zoned minerals: Theory and tectonic applications. Contributions to Mineralogy and Petrology, 83, 348-357.
57. Stern, R. J., 1994. Arc assembly and continental collision in the Neoproterozoic East African Orogen: Implications for the consolidation of Gondwana. Earth Planetary Science Review, 22, 319-351.
58. Thomas, R. J., Jacobs, J., Hollick, L. M. et al., 2005. Insaca-Gurue 1: 250 000 map sheet. Mineral Resources Management Capacity Building Project. Component 2: Geological Infrastructure Development Project: Geological Mapping (LOT 1 Extension). National Directorate of Geology, Maputo, Mozambique.
59. Viola, G., Henderson, I., Bingen, B. & Feito, P. 2006. A New Tectonic Framework for Northern Mozambique. CAG21, Abstract Volume, pp. 168-169. Maputo, Mozambique.
60. Williams, M. L., Melis, E. A., Kopf, C. F. & Hanmer, S. 2000. Microstructural tectonometamorphic processes and the development of gneissic layering: A mechanism for metamorphic segregation. Journal of Metamorphic Geology, 18, 41-57.