Transtensional tectonics along the south Scotia Ridge, Antarctica

Tectonophysics

Volumn 267, Issue 1-4, 1996, Pages 31-56

  Acosta, J ^a   Uchupi, E ^b  

^a INSTITUTO ESPAÑOL DE OCEANOGRAFÍA   (Spain)

^b WOODS HOLE OCEANOGRAPHIC INSTITUTION   (United States)

Author keywords

Accretionary wedge; Block rotation processes; Microplates; South Scotia ridge; Transtension tectonics

Indexed keywords

ACCRETIONARY PRISM; ACCRETIONARY PRISMS; MICROPLATE; PLATE BOUNDARIES; PLATE BOUNDARY; RIDGE FRAGMENTATION; SEISMIC REFLECTION; TECTONICS; TRANSTENSION; TRANSTENSIONAL;

SOUTHERN OCEAN, SCOTIA RIDGE;

EID: 0030417471     PISSN: 00401951     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-1951(96)00090-X     Document Type: Article

References (48)

1. Acosta, J., Canals, M., Herranz, P. and Sanz, J.L., 1989. Investigación geológica y geofísica en el arco de Scotia y Península Antartica. Publ. Espc. Inst. Esp. Oceanogr., 2: 9-82.
2. Acosta, J., De Andres, J.R., Argullós, J., Calafat, A., Canals, M., Casamor, J.L., Davies, T., Escartin, J., Gracia, E., Herranz, P., Mateu, G., Rey, J., Sanz, J.L., Soler, M., Somoza, L., and Sorribas, J., 1992a. Resultados preliminares de la campaña de geología marina "Scotia-92". Estudio geologico y geofisico de la dorsal sur del Arco de Scotia. In: J. López-Martinez (Editor), Geologia de la Antártida Occidental, Vol. 3. III Congr. Geol. España y VIII Congr. Latinoamericano Geol., Salamanca, pp. 203-212.
3. Acosta, J., Herranz, P., Sanz, J.L. and Uchupi, E., 1992b. Antarctic continental margin: Bransfield Trough, an incipient ocean basin. In: C.W. Poag and P.C. Graciansky (Editors), Geologic Evolution of Atlantic Continental Rises. Van Nostrand Reinhold, New York, pp. 49-61.
4. Ashcroft, W.A., 1972. Crustal structure of the South Shetland Islands and Bransfield Strait. Br. Antarct. Surv., Sci. Rep., 66: 1-43.
5. Barker, D.H.N. and Austin, J.A., 1994. Crustal diapirism in Bransfield Strait, West Antarctica - evidence for distributed extension in marginal basins formation. Geology, 22: 657-660.
6. Barker, P.F., Dalziel, I.W.D. and Storey, B.C., 1991. Tectonic development of the Scotia Arc region. In: R.J. Tingey (Editor), Antarctic Geology. Oxford University Press, Oxford, pp. 215-248.
7. Bilham, R.G. and Beavan, R.J., 1979. Strains and tilts on crustal blocks. Tectonophysics, 52: 121-138.
8. British Antarctic Survey, 1985. Tectonic Map of Scotia Arc. Sheet (Msc) 3, Edition 1. Scale 1: 300,000. British Antarctic Survey. Cambridge.
9. Brown, L.L. and Golombek, M.P., 1986. Block rotations in the Rio Grande rift. Tectonics, 5: 423-438.
10. Calais, E. and Lépinay, B. M., 1995. Strike-slip tectonic processes in the northern Caribbean between Cuba and Hispaniola (Windward Passage). Mar. Geophys. Res., 17: 63-95.
11. Canals, M., Acosta, J., Grácia, E., Escartín, J. and Grupo, A.R.C.A., 1992. Caracterización geológica de la región de enlace entra la Cuenca de Bransield y la Dorsal de Scotia (Antártida). Acta Geol. Hisp., 27: 89-110.
12. Cande, S.C. and Kent, J.V., 1992. A new geomagnetic polarity time scale for the Late Cretaceous and Cenozoic. J. Geophys. Res., 97: 13,917-13,951.
13. Christie-Blick, N. and Biddle, T.K., 1985. Deformation and basin formation along strike-slip faults. In: K.T. Biddle and N. Christie-Blick (Editors), Strike-slip Deformation, Basin Formation, and Sedimentation. Soc. Econ. Paleontol. Mineral. Spec. Publ., 37: 1-34.
14. Cunningham, W.D., Dalziel, I.W., Lee, T-Y. and Lawver, L.A., 1995, Southernmost South America-Antarctic Peninsula relative plate motions since 84 Ma: implications for tectonic evolution of the Scotia Arc region. J. Geophys. Res., 100: 8257-8266.
15. Davey, F.J., 1972. Marine gravity measurements in Bransfield Strait and adjacent areas. In: R.J. Adie (Editor), Antarctic Geology and Geophysics. Universitetsforlaget, Oslo, pp. 39-46.
16. Dempster, T.J. and Bluck, B.J., 1995. Regional metamorphism in transform zones during supercontinent breakup: Late Proterozoic events of the Scotish Highlands. Geology, 23: 991-994.
17. Dillon, W.P., Austin, J.A., Jr., Edgar, N.T. and Parson, L.M., 1992. Accretionary margin of north-western Hispaniola: morphology, structure and development of part of the northern Caribbean plate boundary. Mar. Petrol. Geol., 9: 70-88.
18. Forsyth, D.W., 1975. Fault plane solutions and tectonics of the South Atlantic and Scotia Sea. J. Geophys. Res., 80: 1429-1443.
19. Galindo-Zaldívar, J., Jabaloy, A., Maldonado, A. and Sanz de Galdeano, C., 1994. Transtensional deformation and internal evolution in the South Scotia Ridge. Terra Antarctica, 1(2): 303-306.
20. Garfulkel, Z. and Ron, H., 1985. Block rotation and deformation by strike-slip faults, 2: the properties of a type of macroscopic discontinuous deformation. J. Geophys. Res., 90: 8589-8602.
21. Gibbs, A., 1987. Development of extension and mixed-mode sedimentary basins. In: M.P. Coward, J.F. Dewey and P.L. Hancock (Editors), Continental Extensional Tectonics. Geol. Soc. Spec. Pap., 28: 19-33.
22. Harland, W.B., 1971. Tectonic transpression in Caledonian Spitzbergen. Geol. Mag., 108: 27-42.
23. Jeffers, J.D., Anderson, J.B. and Lawver, L.A., 1991. Evolution of the Bransfield Basin; Antarctic Peninsula. In: M.R.A. Thomson, J.A. Crame and J.W. Thomson (Editors), Geological Evolution of Antarctica. Cambridge University Press, Cambridge, pp. 481-485.
24. King, E.C. and Barker, P.F., 1988. The margins of South Orkney microcontinent. J. Geol. Soc. London, 145: 317-331.
25. King, E., Leitchenkov, G., Galindo-Zaldívar, J. and Maldonado, A., 1994. Basement distribution in Powell Basin: understanding the tectonic controls on sedimentation. Terra Antarctica, 1(2): 307-308.
26. Klepeis, K.A., Lawver, L.A., Zellers, S., Miller, J. and Nelson, G., 1990. Bathymetry of the Shackleton Fracture Zone, Elephant Island and Clarence Island regions, Antarctica. Antarct. J., 25: 71-73.
27. Klepeis, K.A., Lawver, L.A., Sandwell, D. and Small, C., 1989. The morphology and tectonic structure of Shackleton Fracture Zone. Antarct. J., 24: 126-128.
28. Lawver, L.A. and Villinger, A., 1989. North Bransfield Basin:R/V Polar Duke cruise PD VI-88. Antarct. J., 24: 117-119.
29. Lawver, L.A., Della Vedova, B. and Von Herzen, R.P., 1991. Heat flow in Jane Basin, northwest Weddell Sea. J. Geophys. Res., 96: 2019-2038.
30. Lawver, L.A., Williams, T. and Solan, B., 1994. Seismic stratigraphy and heat flow of Powell Basin. Terra Antarctica, 1(2): 309-310.
31. Lawver, L.A., Klepeis, K., Dalziel, I.W.D. and Zellers, S., 1990. Intersection of the Shackleton Fracture Zone and the Antarctic: a complex continental margin. EOS, 71: 1592.
32. Maldonado, A., Aldaya, F., Bálanyá, J., Galindo-Zaldívar, J., Jabaloy, A., Larter, R.D., Rodriguez-Fernandez, M. and Sanz de Galdeano, C., 1994. Cenozoic continental margin growth patterns in the northern Antarctic Peninsula. Terra Antarctica, 1(2): 311-314.
33. Masson, D.G. and Scanlon, K.M., 1991. The neotectonic setting of Puerto Rico. Geol. Soc. Am. Bull., 103: 144-154.
34. McGinnis, J.P. and Hayes, D.E., 1994. Sediment drift formation along the Antarctic Peninsula. Terra Antartica, 1(2): 275-276.
35. McGinnis, J.P. and Hayes, 1995. The roles of downslope and along-slope depositional processes: southern Antarctic Peninsula continental rise. Geology and seismic stratigraphy of the Antarctic margin. Antarct. Res. Series, Am. Geophys. Union, 68: 141-156.
36. Nicholson, C., Seeber, L., Williams, P. and Sykes, L.R., 1986a. Seismic evidence for conjugate slip and block rotation within the San Andreas fault system, California. Tectonics, 5: 629-648.
37. Nicholson, G., Seeber, L., Williams and Sykes, L.R., 1986b. Seismicity and fault kinematics through the eastern Transverse Ranges, California: block rotation, strike-slip faulting and low angle thrusts. J. Geophys. Res., 91: 4891-4908
38. O.R.C.A. Group (Acosta, J., Argullós, J., Calafat, A., Canals, M., Casamor, J.L., Escartín, J., Gràcia, E., Herranz, P., Sanz, J.L. and Sorribas, J.), 1994. Bathymetry of the Hespérides Deep-South Scotia Ridge-Antarctica. Scale 1:200,000. Grup de Recerca en Geociéncias, Univ. Barcelona.
39. Pelayo, A.M. and Weins, D.A., 1989. Seismotectonics and relative plate motions in the Scotia Sea region. J. Geophys. Res., 94: 7293-7320.
40. Reading, H.G., 1980. Characteristics and recognition of strike-slip fault systems. In: P.F. Ballance and H.G. Reading (Editors), Sedimentation in Oblique-slip Mobile Zones. Int. Assoc. Sedimentol. Spec. Publ. 5: 789-798.
41. Rebesco, M., Larter, R.D., Barker, P.F., Camerlich, A. and Vanneste, L.E., 1994. The history of sedimentation on continental rise west of the Antarctic Peninsula. Antarctica. Terra Antarctica, 1(2): 277-279.
42. Roach, P.J., 1978. The nature of back-arc extension in Bransfield strait. R. Astron. Soc. Geophys. J., 53: 165.
43. Rodriguez-Fernandez, J., Bálanyá J.C., Galindo-Zaldívar, J. and Maldonado, A., 1994. Margin styles of Powell Basin and their tectonic implications (NW Antarctic Peninsula). Terra Antartica, 1(2): 315-316.
44. Shimizu, S.H., Morishima, H. and Tamura, Y., 1989. Preliminary report of geophysical and geological surveys of the South Orkney Islands, Scotia Arc region. In: Proc. NIPR Symp. Antarctic Geosciences, 3: 52-64.
45. Shipboard Scientific Party, 1988. Site 695. In: P.F. Barker, J.P. Kennett et al. (Editors), Proc. ODP, Initial Reports, 113. College Station, Texas (Ocean Drilling Program), pp. 527-703.
46. Vegas, R., Acosta, J. and Uchupi, E., 1995, Continental-oceanic crustal transition in the Bransfield Trough and the South Scotia Ridge (Antarctica); preliminary results. In: E. Banda et al. (Editors), Rifted Ocean-Continent Boundaries. Kluwer, Dordrecht, pp. 265-289.
47. Watters, D.G., 1972. Geophysical investigation of a section of the South Scotia Ridge. In: R.J. Adie (Editor), Antarctic Geology and Geophysics. Universttetsforlaget, Oslo, pp. 33-38.
48. Westbrook, G.K., 1982. The Barbados Ridge complex: tectonics of a mature forearc system. In: J.K. Legget (Editor), Trench Forearc Geology: Sedimentation and Tectonics on Modern and Ancient Active Plate Margins. Geol. Soc. London Spec. Publ., pp. 275-290.