Structural expression of oblique seafloor spreading in the Macquarie Island ophiolite, Southern Ocean

Geology

Volumn 32, Issue 2, 2004, Pages 125-128

  Rivizzigno, Peter A ^a   Karson, Jeffrey A ^a  

^a DUKE UNIVERSITY   (United States)

Author keywords

Discontinuities; Hydrothermal circulation; Oblique slip faults; Seafloor spreading; Transfer zones

Indexed keywords

HYDROTHERMAL ALTERATIONS; OCEANIC CRUSTS;

LEVEES; OCEANOGRAPHY; TECTONICS;

HYDROGEOLOGY;

EXTENSIONAL TECTONICS; HYDROTHERMAL SYSTEM; MAGMATISM; OCEANIC CRUST; OPHIOLITE; PLATE BOUNDARY; SEAFLOOR SPREADING;

MACQUARIE ISLAND; PACIFIC ISLANDS; PACIFIC OCEAN;

EID: 1542289636     PISSN: 00917613     EISSN: None     Source Type: Journal    
DOI: 10.1130/G19906.1     Document Type: Article

References (27)

1. Alt, J.C., Davidson, G., Teagle, D.A.H., and Karson, J.A., 2003, The isotopic composition of gypsum in the Macquarie Island Ophiolite: Implications for sulfur cycle and the subsurface biosphere in oceanic crust: Geology, v. 31, p. 549-552.
2. Bicknell, J.D., Macdonald, K.C., Miller, S.P., Lonsdale, P.F., and Becker, K., 1986, Tectonics of the Nereus Deep, Red Sea: A deep-tow investigation of a site of initial rifting: Marine Geophysical Researches, v. 8, p. 131-148.
3. Bird, P., and Phillips, J.D., 1975, Oblique spreading near the Oceanographer Fracture: Journal of Geophysical Research, v. 80, p. 4021-4027.
4. Casey, J.F., Dewey, J.F., Fox, P.J., Karson, J.A., and Rosencrantz, E., 1981, Heterogeneous nature of the oceanic crust and upper mantle: A perspective from the Bay of Islands Ophiolite, in Emiliani, C., ed., The oceanic lithosphere, Volume VII: The sea: New York, Wiley, p. 305-338.
5. Coffin, M.F., Karner, G.D., and Falvey, D.A., 1994, Research cruise yields new details of Macquarie Ridge Complex: Eos (Transactions, American Geophysical Union), v. 75, p. 561-564.
6. Collot, J.-Y., Lamarche, G., Wood, R.A., Delteil, J., Sosson, M., Lebrun, J.-F., and Coffin, M.F., 1995, Morphostructure of an incipient subduction zone along a transform plate boundary: Puysegur Ridge and Trench: Geology, v. 23, p. 519-522.
7. Daczko, N.R., Wertz, K., Mosher, S., and Coffin, M.F., 2002, Extension along the Australian-Pacific transpressional transform plate boundary near Macquarie Island: Eos (Transactions, American Geophysical Union), v. 83, abs. T12D-1342.
8. Dauteuil, O., and Brun, J.-P., 1996, Deformation partitioning in a slow spreading ridge undergoing oblique extension, Mohns Ridge, Norwegian Sea: Tectonics, v. 15, p. 870-884.
9. Dauteuil, O., Huchon, P., Quemeneur, F., and Souriot, T., 2001, Propagation of an oblique spreading center: The western Gulf of Aden: Tectonophysics, v. 332, p. 423-442.
10. Goscombe, B.D., and Everard, J.L., 1998, Geological map of Macquarie Island: Mineral Resources Tasmania, scale 1:10,000.
11. Goscombe, B.D., and Everard, J.L., 2001, Tectonic evolution of Macquarie Island: Extensional structures and block rotations in oceanic crust: Journal of Structural Geology, v. 23, p. 639-673.
12. Grácia, E., Bideau, D., Hekinian, R., Lagabrielle, Y., and Parson, L., 1997, Along-axis magmatic oscillations and exposure of ultramafic rock rocks in second-order segments of the Mid-Atlantic Ridge (33°43′N to 34°07′N): Geology, v. 25, p. 1059-1062.
13. Grindlay, N.R., Madsen, J.A., Rommevaux-Jestin, C., and Sclater, J., 1998, A different pattern of ridge segmentation and mantle Bouguer gravity anomalies along the ultra-slow spreading Southwest Indian Ridge (15°30′E to 25°E): Earth and Planetary Science Letters, v. 161, p. 243-253.
14. Karson, J.A., 1998, Internal structure of oceanic lithosphere: A perspective from tectonic windows, in Buck, W.R., et al., eds., Faulting and magmatism at mid-ocean ridges: American Geophysical Union Geophysical Monograph 106, p. 177-218.
15. Macdonald, K.C., 1998, Linkages between faulting, volcanism, hydrothermal activity and segmentation on fast spreading centers, in Buck, W.R., et al., eds., Faulting and magmatism at mid-ocean ridges: American Geophysical Union Geophysical Monograph 106, p. 27-58.
16. Macdonald, K.C., Scheirer, D.S., and Carbotte, S.M., 1991, Mid-ocean ridges: Discontinuities, segments and giant cracks: Science, v. 253, p. 986-994.
17. MacLeod, C.J., and Rothery, D.A., 1992, Ridge axial segmentation in the Oman ophiolite: Evidence from along-strike variations in the sheeted dyke complex, in Browning, P., ed., Ophiolites and their modern oceanic analogues: Geological Society [London] Special Publication 60, p. 39-63.
18. Massell, C., Coffin, M.F., Mann, P., Mosher, S., Frohlich, C., Duncan, C.S., Karner, G., Ramsay, D., and Lebrun, J.F., 2000, Neotectonics of the Macquarie Ridge Complex, Australia-Pacific plate boundary: Journal of Geophysical Research, v. 105, p. 457-480.
19. McAllister, E., Cann, J., and Spencer, S., 1995, The evolution of crustal deformation in an oceanic extensional environment: Journal of Structural Geology, v. 17, p. 183-199.
20. Murton, B.J., and Parson, L.M., 1993, Segmentation, volcanism and deformation of oblique spreading centres: A quantitative study of the Reykjanes Ridge: Tectonophysics, v. 222, p. 237-257.
21. Rivizzigno, P.A., 2002, The Major Lake fault zone: An oblique spreading structure exposed in the Macquarie Island Ophiolite, Southern Ocean [M.S. thesis]: Durham, North Carolina, Duke University, 72 p.
22. Rosendahl, B.R., 1987, Architecture of continental rifts with special reference to East Africa: Annual Review of Earth and Planetary Sciences, v. 15, p. 445-503.
23. Sutherland, R., 1995, The Australia-Pacific boundary and Cenozoic plate motions in the SW Pacific: Some constraints from Geosat data: Tectonics, v. 14, p. 819-831.
24. Varga, R.J., and Moores, E.M., 1985, Spreading structure of the Troodos ophiolite, Cyprus: Geology, v. 13, p. 846-850.
25. Varne, R., and Rubenach, M.J., 1972, Antarctic Geology II. The Australian-New Zealand sector, in Hayes, D.E., ed., Antarctic Research Series, Volume 19: Canberra, Australian Geological Society, p. 251-266.
26. Varne, R., Brown, A.V., and Falloon, T., 2000, Macquarie Island; its geology, structural history, and the timing and tectonic setting of its N-MORB to E-MORB magmatism, in Dilek, Y., et al., eds., Ophiolites and oceanic crust, new insights from field studies and the Ocean Drilling Program: Geological Society of America Special Paper 349, p. 301-320.
27. Wertz, K., Mosher, S., Daczko, N.R., and Coffin, M.F., 2003, Macquarie Island's Finch-Langdon fault: A ridge-transform inside-corner structure: Geology, v. 31, p. 661-664.