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Proterozoic geological evolution of the northern Vestfold Hills, Antarctica

Published online by Cambridge University Press:  01 May 2009

C. W. Passchier ,
R. F. Bekendam ,
J. D. Hoek ,
P. G. H. M. Dirks  and
H. de Boorder
C. W. Passchier
Affiliation:
Institute of Earth Sciences, Budapestlaan 4, Utrecht, The Netherlands
R. F. Bekendam
Affiliation:
Institute of Earth Sciences, Budapestlaan 4, Utrecht, The Netherlands
J. D. Hoek
Affiliation:
Institute of Earth Sciences, Budapestlaan 4, Utrecht, The Netherlands
P. G. H. M. Dirks
Affiliation:
Department of Geology, University of Melbourne, Parkville, Victoria 3052, Australia
H. de Boorder
Affiliation:
Institute of Earth Sciences, Budapestlaan 4, Utrecht, The Netherlands
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Abstract

The presence of polyphase shear zones transected by several suites of dolerite dykes in Archaean basement of the Vestfold Hills, East Antarctica, allows a detailed reconstruction of the local structural evolution. Archaean and early Proterozoic deformation at granulite facies conditions was followed by two phases of dolerite intrusion and mylonite generation in strike-slip zones at amphibolite facies conditions. A subsequent middle Proterozoic phase of brittle normal faulting led to the development of pseudotachylite, predating intrusion of the major swarm of dolerite dykes around 1250 Ma. During the later stages and following this event, pseudotachylite veins were reactivated as ductile, mylonitic thrusts under prograde conditions, culminating in amphibolite facies metamorphism around 1000–1100 Ma. This is possibly part of a large-scale tectonic event during which the Vestfold block was overthrust from the south. In a final phase of strike-slip deformation, several pulses of pseudotachylite-generating brittle faulting alternated with ductile reactivation of pseudotachylite.

Type
Articles
Information
Geological Magazine , Volume 128 , Issue 4 , July 1991 , pp. 307 - 318
Copyright
Copyright © Cambridge University Press 1991

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References

Arriens, P. A. 1975. Precambrian geochronology of Antarctica. First Australian Geological convention. Adelaide, Abstracts, 97–8.Google Scholar
Black, L. P., Harley, S. J., Sun, S. S. & McCulloch, M. T. 1987. The Rayner complex of East Antarctica: complex isotopic systematics within a Proterozoic mobile belt. Journal of Metamorphic Geology 5, 1–26.CrossRefGoogle Scholar
Black, L. P., Kinny, P. D. & Sheraton, J. W. 1990. A revised chronology for the Vestfold Block based on ion-probe zircon ages. Gondwana: Terranes and Resources. Tenth Australian Geological Convention, February 4–9, 1990, University of Tasmania, Hobart. Geological Society of Australia, Abstracts, no. 25, p. 253.Google Scholar
Black, L. P., Sheraton, J. W., Kinny, P. D., Delor, C. P. & Harris, L. B. 1990. Problems of dating mafic dykes: an example from the Vestfold Hills Region of East Antarctica. Seventh International Conference on Geochronology, Cosmochronology and Isotope Geology,24–29 September 1990,Canberra, Australia.Geological Society of Australia, Abstracts, no. 27, p. 11.Google Scholar
Clarke, G. L. 1988. Structural constraints on the Proterozoic reworking of Archaean crust in the Rayner Complex, MacRobertson and Kemp Land Coast, East Antarctica. Precambrian Research 40, 137–56.CrossRefGoogle Scholar
Collerson, K. D., Reid, E., Millar, D. & McCulloch, M. T. 1983. Lithological and Sr-Nd isotopic relationships in the Vestfold Block: implications for Archaean and Proterozoic crustal evolution in the East Antarctic. In Antarctic Earth Science (eds Oliver, R. L., James, P. R. and Jago, J. B.), pp. 77–84. Canberra: Australian Academy of Science.Google Scholar
Collerson, K. D. & Sheraton, J. W. 1986 a. Bedrock geology and crustal evolution of the Vestfold Hills. In The Antarctic Oasis: Terrestrial Environments and History of the Vestfold Hills (ed. Pickard, J.), pp. 21–62. Academic Press.Google Scholar
Collerson, K. D. & Sheraton, J. W. 1986 b Age and geochemical characteristics of a mafic dyke swarm in the Archaean Vestfold Block, Antarctica: inferences about Proterozoic dyke emplacement in Gondwana. Journal of Petrology 27, 853–86.CrossRefGoogle Scholar
Collerson, K. D., Sheraton, J. W. & Arriens, P. 1983. Granulite facies metamorphic conditions during the Archaean evolution and late Proterozoic reworking of the Vestfold block, Eastern Antarctica. Australian Geological Convention, Canberra, 1983, 6th abstracts, p. 000.Google Scholar
Crohn, P. W. 1959. A contribution to the geology and glaciology of the western part of Australian Antarctic territory. Bulletin of the Bureau of Mineral Resources, Geology & Geophysics, Australia 52, 43–4.Google Scholar
England, P. C. & Thompson, A. B. 1984. Pressure–temperature–time paths of regional metamorphism. I. Heat transfer during evolution of regions of thickened continental crust. Journal of Petrology 25, 894–928.CrossRefGoogle Scholar
Francis, P. W. & Sibson, R. H. 1973. The Outer Hebrides Thrust. In The Early Precambrian of Scotland and Related Rocks of Greenland (eds Park, R. G. and Tarney, J.), pp. 95–103. Keele: University Department of Geology.Google Scholar
Gapais, D. 1989. Shear structures within deformed granites: mechanical and thermal indicators. Geology 17, 1144–7.2.3.CO;2>CrossRefGoogle Scholar
Grocott, J. 1981. Fracture geometry of pseudotachylite generation zones: a study of shear fractures formed during seismic events. Journal of Structural Geology 3, 169–79.CrossRefGoogle Scholar
Harley, S. L. 1987. Precambrian geological relationships in high-grade gneisses of the Rauer Islands, East Antarctica. Australian Journal of Earth Sciences 34, 175–207.CrossRefGoogle Scholar
Harley, S. L. 1988. Proterozoic granulites from the Rauer Group, East Antarctica. I. Decompressional pressure–temperature paths deduced from mafic and felsic gneisses. Journal of Petrology 29, 1059–95.CrossRefGoogle Scholar
Hobbs, B. E., Ord, A. & Teyssier, C. 1986. Earthquakes in the ductile regime? Pure and Applied Geophysics 124, 309–36.CrossRefGoogle Scholar
James, P. R. & Tingey, R. J. 1983. The Precambrian geological evolution of the East Antarctic metamorphic shield–a review. In Antarctic Earth Science (eds Oliver, R. L., James, P. R. and Jago, J. B.), pp. 5–15. Canberra: Australian Academy of Science.Google Scholar
Kinny, P. D. & Black, L. P. 1990. Zircon ages and the distribution of Archaean and Proterozoic rocks in the Rauer Islands. Gondwana: Terranes and Resources. Tenth Australian Geological Convention, February 4–9, 1990, University of Tasmania, Hobart. Geological Society of Australia, Abstracts, no. 25, p. 251.Google Scholar
Kinny, P. D., Black, L. P., Sheraton, J. W. & Delor, C. P. 1990. New isotopic evidence for the ages and distribution of Archaean rocks in East Antarctica. In Third International Archaean Symposium, Perth 1990. Extended abstracts volume (eds Glover, J. E. and Ho, S. E.), pp. 27–8. Perth: Geoconferences (W.A.) Inc.Google Scholar
Kuehner, S. M. 1987. Mafic dykes of the East Antarctic Shield: a note on the Vestfold Hills and Mawson Coast occurrences. Geological Association of Canada Special Paper 34, 429–30.Google Scholar
Kuehner, S. M. (in press). Experimental determination of the emplacement pressures of Proterozoic mafic dykes and their application to the uplift history of the East Antarctic Shield. Contributions to Mineralogy and PetrologyGoogle Scholar
Kuehner, S. M. & Green, D. H. (in press) Uplift history of the East Antarctic Shield: constraints imposed by high pressure experimental studies of Proterozoic mafic dykes. In Geological Evolution of Antarctica (eds Thomson, M. R. A., Crane, J. A. and Thompson, J. W.), pp. 428–9. Cambridge: British Antarctic Survey.Google Scholar
Lister, G. S. & Hobbs, B. E. 1980. The simulation of fabric development during plastic deformation and its application to quartzite: the influence of deformation history. Journal of Structural Geology 2, 355–71.CrossRefGoogle Scholar
Maddock, R. H. 1986. Partial melting of lithic porphyroclasts in fault generated pseudotachylites. Neues Jahrbuch für Mineralogie Abhandlungen 155, 1–14.Google Scholar
Oliver, R. L., James, P. R., Collerson, K. D. & Ryan, A. B. 1982. Precambrian geologic relationships in the Vestfold Hills, Antarctica. In Antarctic Geoscience (ed. Craddoc, C.), pp. 435–44. Madison, WI: University of Wisconsin Press.Google Scholar
Parker, A. J., James, P. R., Oliver, R. L. & Mielnik, V. 1983. Structure, fabric development and metamorphism in Archaean gneisses of the Vestfold Hills, East Antarctica. In Antarctic Earth Science (eds Oliver, R. L. James, P. R. and Jago, J. B.), pp. 85–90. Canberra: Australian Academy of Science.Google Scholar
Passchier, C. W., Hoek, J. D., Bekendam, R. F. & De Boorder, H. 1990. Ductile reactivation of Proterozoic brittle fault rocks; an example from the Vestfold Hills, East Antarctica. Precambrian Research 47, 3–16.CrossRefGoogle Scholar
Perchuk, L. L. & Lavrent'eva, I. V. 1983. Experimental investigation of exchange equilibria in the system cordierite-garnet-biotite. In Kinetics and Equilibrium in Mineral Reactions (ed. Saxena, S. K.), pp. 199–239. Berlin, Heidelberg, New York: Springer.CrossRefGoogle Scholar
Phillpotts, A. R. 1964. Origin of pseudotachylites. American Journal of Science 262, 1008–35.CrossRefGoogle Scholar
Sheraton, J. W., Black, L. P. & McCulloch, M. T. 1984. Geochemistry and geochronology of high-grade metamorphics of the Prydz bay area: the extent of Proterozoic reworking of Archaean continental crust in East Antarctica. Precambrian Research 26, 169–98.CrossRefGoogle Scholar
Sheraton, J. W. & Collerson, K. D. 1983. Archaean and Proterozoic geological relationships in the Vestfold Hills-Prydz Bay Area, Antarctica. BMR Journal of Australian Geology and Geophysics 8, 119–28.Google Scholar
Sheraton, J. W., Thomson, J. W. & Collerson, K. D. 1987. Mafic dyke swarms of Antarctica. Geology Association of Canada Special Paper 34, 419–28.Google Scholar
Sibson, R. H. 1975. Generation of pseudotachylite by ancient seismic faulting. Geophysical Journal of the Royal Astronomical Society 43, 775–94.CrossRefGoogle Scholar
Sibson, R. H. 1977. Fault rocks and fault mechanisms. Journal of the Geological Society of London 133, 191–213.CrossRefGoogle Scholar
Stüwe, K. & Powell, R. 1989. Low pressure granulite facies metamorphism in the Larsemann Hills area, East Antarctica; petrology and tectonic implications for the Prydz Bay area. Journal of Metamorphic Geology 7, 465–84.CrossRefGoogle Scholar
Tullis, J. T., Snoke, A. W. & Todd, V. R. 1982. Significance of petrogenesis of mylonitic rocks. Geology 10, 227–30.2.0.CO;2>CrossRefGoogle Scholar
Wellman, P. & Williams, J. W. 1982. Extent of Archaean and Late Proterozoic rocks under the ice cap of Princess Elizabeth Land, Antarctica, inferred from geophysics. BMR Journal of Australian Geology and Geophysics 7, 213–18.Google Scholar