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Geotectonic evolution of the Bransfield Basin, Antarctic Peninsula: insights from analogue models

  • M.A. Solari (a1), F. Hervé (a1), J. Martinod (a2), J.P. Le Roux (a1), L.E. Ramírez (a1) and C. Palacios (a1)...

The Bransfield Strait, located between the South Shetland Islands and the north-western end of the Antarctic Peninsula, is a back-arc basin transitional between rifting and spreading. We compiled a geomorphological structural map of the Bransfield Basin combining published data and the interpretation of bathymetric images. Several analogue experiments reproducing the interaction between the Scotia, Antarctic, and Phoenix plates were carried out. The fault configuration observed in the geomorphological structural map was well reproduced by one of these analogue models. The results suggest the establishment of a transpressional regime to the west of the southern segment of the Shackleton Fracture Zone and a transtensional regime to the south-west of the South Scotia Ridge by at least c. 7 Ma. A probable mechanism for the opening of the Bransfield Basin requires two processes: 1) Significant transtensional effects in the Bransfield Basin caused by the configuration and drift vector of the Scotia Plate after the activity of the West Scotia Ridge ceased at c. 7 Ma. 2) Roll-back of the Phoenix Plate under the South Shetland Islands after cessation of spreading activity of the Phoenix Ridge at 3.3 ± 0.2 Ma, causing the north-westward migration of the South Shetland Trench.

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Acosta, J., Herranz, P., Sanz, J.L. & Uchupi, E. 1992. Antarctic continental margin: geologic image of the Bransfield Trough, an incipient ocean basin. In Poag, C.W. & de Graciansky, P.C., eds. Geologic evolution of the Atlantic continental rises. New York: Van Nostrand Reinhold, 4961.
Anderson, J.B. 1999. Antarctic marine geology. Cambridge: Cambridge University Press, 287 pp.
Barker, P.F. 1982. The Cenozoic subduction history of the Pacific margin of the Antarctic Peninsula: ridge crest-trench interactions. Journal of the Geological Society of London, 139, 787801.
Barker, P.F. & Dalziel, I.W.D. 1983. Progress in geodynamics in the Scotia Arc region. In Cabré, R., ed. Geodynamics of the eastern Pacific Region, Caribbean and Scotia arcs. Washington, DC: American Geophysical Union, Geodynamic Series, vol. 9, 137170.
Barker, P.F. 2001. Scotia Sea regional tectonic evolution: implications for mantle flow and palaeocirculation. Earth-Science Reviews, 55, 139.
Barker, P.F., Dalziel, I.W.D. & Storey, B.C. 1991. Tectonic development of the Scotia Arc region. In Tingey, R.J., ed. Antarctic geology. London: Oxford University Press, 215248.
Barker, D.H.N. & Austin, J.A. 1994. Crustal diapirism in Bransfield Strait, West Antarctica: evidence for distributed extension in marginal-basin formation. Geology, 22, 657660.
Barker, D.H.N. & Austin, J.A. 1998. Rift propagation, detachment faulting and magmatism in the Bransfield Strait, Antarctic Peninsula. Journal of Geophysical Research, 103, 24 01724 043.
Barker, D.H.N., Christeson, G.L., Austin, J.A. & Dalziel, I.W.D. 2003. Backarc basin evolution and cordilleran orogenesis: insights from new ocean-bottom seismograph refraction profiling in Bransfield Strait, Antarctica. Geology, 31, 107110.
Birkenmajer, K. 1982. Late Cenozoic phases of the block-faulting on King George Island, South Shetland Island, (West Antarctica). Bulletin de l'Académie Polonaise des Sciences, Série des Sciences de la Terre, 30, 2132.
Canals, M., Gràcia, E., Prieto, M.J. & Parson, L.M. 1997. The Antarctic Region: geological evolution and processes. In Ricci, C.A., ed. Proceedings of the VII International Symposium on Earth Sciences. Siena: Terra Antarctica Publications, 669673.
Canals, M., Casamor, J.L., Urgeles, R., Calafat, A.M., Domack, E.W., Baraza, J., Farrán, M. & De Batist, M. 2002. Seafloor evidence of a subglacial sedimentary system off the northern Antarctic Peninsula. Geology, 30, 603606.
Davy, P. & Cobbold, P.R. 1991. Experiments on shortening of 4-layer model of the continental lithosphere. Tectonophysics, 188, 125.
Fernández-Ibáñez, F., Pérz-López, R., Martínez-Díaz, J.J., Paredes, C., Giner-Robles, J.L., Caselli, A.T. & Ibáñez, J.M. 2005. Costa Recta beach, Deception Island, West Antarctica: a retreated scarp of a submarine fault? Antarctic Science, 17, 418426.
Gautier, P., Brun, J.P., Moriceau, R., Soukoutis, D., Martinod, J. & Jolivet, L. 1999. Timing, kinematics, and cause of Aegean extension: a scenario based on a comparison with simple analogue experiments, Tectonophysics, 315, 3172.
Galindo-Zaldívar, J., Jabaloy, A., Maldonado, A. & De Galdeano, C.S. 1996. Continental fragmentation along the South Scotia Ridge transcurrent plate boundary (NE Antarctic Peninsula). Tectonophysics, 258, 275301.
Gambôa, L.A.P. & Maldonado, P.R. 1990. Geophysical investigations in the Bransfield Strait and in the Bellinghausen Sea, Antarctica. In St. John, B., ed. Antarctica as an exploration frontier: hydrocarbon potential, geology, and hazards. American Association of Petroleum Geology, Studies in Geology, No. 31, 127141.
Giner-Robles, J.L., González-Casado, J.M., Gumiel, P., Martín-Velázquez, S. & García-Cuevas, C. 2003. A kinematic model of the Scotia Plate (SW Atlantic Ocean). Journal of South American Earth Sciences, 16, 179191.
González-Casado, J.M., López-Martínez, J., Giner-Robles, J., Duran, J.J. & Gumiel, P. 1999. Análisis de la microfracturción en la Isla Decepción, Antártica Occidental. Geogaceta, 26, 2730.
González-Casado, J.M., Giner-Robles, J.L. & López-Martínez, J. 2000. Bransfield Basin, Antarctic Peninsula: not a normal backarc basin. Geology, 28, 10431046.
González-Ferrán, O. 1991. The Bransfield rift and its active volcanism. In Thomson, M.R.A., Crame, J.A. & Thomson, J.W., eds. Geological evolution of Antarctica. New York: Cambridge University Press, 505509.
Gràcia, E., Canals, M., Farràn, M., Prieto, M.J., Sorribas, J. & Gebra, T. 1996. Morphostructure and evolution of the central and eastern Bransfield Basin (NW Antarctic). Marine Geophysical Research, 18, 429448.
Gràcia, E., Canals, M., Farràn, M., Sorribas, J. & Pallas, R. 1997. Central and Eastern Bransfield basins (Antarctica) from high-resolution swath-bathymetry data. Antarctic Science, 9, 168180.
Hardland, W.B., Armstrong, R.L., Cox, A.V., Craig, L.E., Smith, A.G. & Smith, D.G. 1990. A geological time scale 1989. New York: Cambridge University Press, 263 pp.
Hatzfeld, D., Martinod, J., Bastet, G. & Gautier, P. 1997. An analog model for the Aegean to describe the contribution of gravitational potential energy. Journal of Geophysical Research, 102, 649659.
Herron, E.M. & Tucholke, B. 1976. Sea floor magnetic patterns and basement structure in the southeastern Pacific. In Hollister, C.D. & Craddock, C., eds. Initial Reports of the Deep Sea Drilling Project, 35, 263278.
Jeffers, J.D., Anderson, J.B. & Lawver, L.A. 1991. Evolution of the Bransfield Basin, Antarctic Peninsula. In Thomson, M.R.A., Crame, J.A. & Thomson, J.W., eds. Geological evolution of Antarctica. New York: Cambridge University Press, 481485.
Keller, R.A. & Fisk, M.R. 1992. Quaternary marginal basin volcanism in the Bransfield Strait as a modern analogue of the southern Chilean ophiolites. In Parson, L.M., Murton, B.J. & Browning, P., eds. Ophiolites and their modern oceanic analogues. Geological Society Special Publication, No. 60, 155169.
Keller, R.A., Fisk, M.A., White, W.M. & Birkenmajer, K. 1992. Isotopic and trace element constraints on mixing and melting models of marginal basin volcanism, Bransfield Strait, Antarctica. Earth and Planetary Science Letters, 111, 287303.
Keller, R.A., Fisk, M.A. & White, W.M. 1991. Geochemistry of Quarternary volcanism in the Bransfield Strait and South Shetland Islands: preliminary results. Antarctic Journal of the United States, 26(5), 132133.
Klepeis, K.A. & Lawver, L.A. 1996. Tectonics of the Antarctic-Scotia plate boundary near Elephant and Clarence islands, West Antarctica. Journal of Geophysical Research, 101, 20 21120 231.
Larter, R.D. & Barker, P.F. 1991. Effects of the ridge crest-trench interaction on Antarctic-Phoenix spreading: forces on a young subduction plate. Journal of Geophysical Research, 96, 19583–19 607.
Lawver, L.A., Keller, R.A., Fisk, M.R. & Strelin, J.A. 1995. Bransfield Strait, Antarctic Peninsula: active extension behind a dead arc. In Taylor, B., ed. Backarc basins: tectonics and magmatism. New York: Plenum, 315342.
Lawver, L.A., Sloan, B.J., Barker, D.H.N., Ghidella, M., Von Herzen, R.P., Keller, R.A., Klinkhammer, G.P. & Chin, C.S. 1996. Structure of the Bransfield Strait marginal basin, Antarctic Peninsula, based on multi-beam bathymetry: evidence for active extension. GSA Today, 6, 16.
Livermore, R., Balanya, J.C., Maldonado, A., Martínez, J.M., Rodríguez-Fernández, J., Sanz de Galdeano, C., Galindo, J., Jabaloy, A., Barnolas, A., Somoza, L., Hernández-Molina, J., Suriñach, E. & Viseras, C. 2000. Autopsy on a dead spreading center: the Phoenix Ridge, Drake Passage, Antarctica. Geology, 28, 607610.
Maldonado, A., Aldaya, F., Balanya, J.C., Galindo-Zaldívar, J., Jabaloy, A., Larter, R.D., Rodríguez-Fernández, J., Rossanov, M. & Sanz de Galdeano, C. 1994. Cenozoic continental margin growth patterns in the north Antarctic Peninsula. Terra Antarctica, 1, 311314.
Martinod, J., Hatzfeld, D., Brun, J.P., Davy, P. & Gautier, P. 2000. Continental collision, gravity spreading, and kinematics of Aegea and Anatolia. Tectonics, 19, 290299.
Muñoz-Martín, A., Catalán, M., Martín-Dávila, J. & Carbó, A. 2005. Crustal structure of Deception Island area (Bransfield Strait, Antarctica) from gravity and magnetic modelling. Antarctic Science, 17, 213224.
Pelayo, A.M. & Wiens, D.A. 1989. Seismotectonic and relative plate motion in the Scotia Sea Region. Journal of Geophysical Research, 94, 72937320.
Petersen, S., Herzig, P.M., Schwarz-Schampera, U., Hannington, M.D. & Jonasson, I.R. 2004. Hydrothermal precipitates associated with bimodal volcanism in the Central Bransfield Strait, Antarctic. Mineralium Deposita, 39, 358379.
Prieto, M.J., Canals, M., Ercilla, G. & De Batist, M. 1998. Structure and geodynamic evolution of the Central Bransfield Basin (NW Antarctica) from seismic reflection data. Marine Geology, 149, 1738.
Rey, J., Somoza, L. & Martínez-Frías, J. 1995. Tectonic volcanic and hydrothermal event sequence on Deception Island (Antarctica). Geo-Marine Letters, 15, 18.
Santanach, R., Pallàs, F., Sàbat, F. & Muñoz, J.A. 1992. La fracturación en la Isla Livingston, Islas Shetland del Sur. In López-Martínez, J., ed. Geología de la Antártida Occidental. Simposios T-III. Salamanca: III Congreso Geológico de España y VIII Congreso Latinoamericano de Geología, 141151.
Sell, I., Poupeau, G., González-Casado, J.M. & López-Martínez, J. 2004. A fission-track thermochronological study of King George and Livingston Islands, South Shetland Islands (West Antarctica). Antarctic Science, 16, 191197.
Taylor, B., Goodliffe, A.M. & Martínez, F. 1999. How continents break up: insight from Papua New Guinea. Journal of Geophysical Research, 104, 74977512.
Teyssier, C., Tikoff, B. & Markley, M. 1995. Oblique plate motion and continental tectonics. Geology, 23, 447450.
Vanneste, L.E., Larter, R.D. & Smythe, D.K. 2002. Slice of intra-oceanic arc: insights from the first multichannel seismic reflection profile across the South Sandwich island arc. Geology, 30, 819822.
Wellner, J.S., Lowe, A.L., Shipp, S.S. & Anderson, J.B. 2001. Distribution of the glacial geomorphic features on the Antartic continental shelf and correlation with substrate: implications for ice behavior. Journal of Glaciology, 47, 397411.
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Antarctic Science
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