Magnetic anisotropy of serpentinized peridotites from the MARK area: Implications for the orientation of mesoscopic structures and major fault zones

Journal of Geophysical Research: Solid Earth

Volumn 107, Issue 4, 2002, Pages

  Lawrence, Róisín M ^a   Gee, Jeffrey S ^b   Karson, Jeffrey A ^a  

^a DUKE UNIVERSITY   (United States)

^b UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

Mid Atlantic ridge; Ocean drilling; Remanence anisotropy

Indexed keywords

DEFORMATION; FAULT ZONE; MAGNETIC ANISOTROPY; OCEAN DRILLING PROGRAM; PERIDOTITE; PREFERRED ORIENTATION; REMANENT MAGNETIZATION; SERPENTINIZATION; TECTONIC EVOLUTION;

ATLANTIC OCEAN; MID-ATLANTIC RIDGE;

EID: 0012102743     PISSN: 21699313     EISSN: 21699356     Source Type: Journal    
DOI: None     Document Type: Article

References (68)

1. Agrinier, P., and M. Cannat, Oxygen-isotope constraints on serpentinization processes in ultramafic rocks from the Mid-Atlantic Ridge (23°N), Proc. Ocean Drill. Program Sci. Results, 153, 381-388, 1997.
2. Aumento, F., and H. Loubat, The Mid-Atlantic Ridge near 45°N, XVI, Serpentinized ultramafic intrusion, Can. J. Earth Sci., 8, 631-663, 1971.
3. Bina, M. M., and B. Henry, Magnetic properties, opaque mineralogy and magnetic anisotropies of serpentinized peridotites from ODP Hole 670A near the Mid-Atlantic Ridge, Phys. Earth Planet. Inter., 65, 88-103, 1990.
4. Blackman, D. K., J. R. Cann, B. Janssen, and D. K. Smith, Origin of extensional core complexes: Evidence from the Mid-Atlantic Ridge at Atlantis Fracture Zone, J. Geophys. Res., 103, 21,315-21,333, 1998.
5. Bonatti, E., Serpentinite protrusions in the oceanic crust, Earth Planet. Sci. Lett., 32, 107-113, 1976.
6. Bonatti, E., J. R. Lawrence, and N. Marandi, Serpentinization of ocean- floor peridotites: Temperature dependence on mineralogy and boron content, Earth Planet. Sci. Lett., 70, 88-94, 1984.
7. Bowles, J. A., and H. P. Johnson, Behavior of oceanic crustal magnetization at high temperatures: Viscous magnetization and the marine magnetic anomaly source layer, Geophys. Res. Lett., 26, 2279-2282, 1999.
8. Buck, W. R., Flexural rotation of normal faults, Tectonics, 7, 959-973, 1988.
9. Canales, J. P., J. A. Collins, J. Escartin, and R. S. Detrick, Seismic structure across the rift valley of the Mid-Atlantic Ridge at 23°20′ (MARK area): Implications for crustal accretion processes at slow spreading ridges, J. Geophys. Res., 105, 28,411-28,425, 2000.
10. Cande, S. C., and D. V. Kent, A new geomagnetic polarity time scale for the Late Cretaceous and Cenozoic, J. Geophys. Res., 97, 13,917-13,951, 1992.
11. Cann, J. R., D. K. Blackman, D. K. Smith, E. McAllister, B. Janssen, S. Mello, E. Averginos, A. R. Pascoe, and J. Escartin, Corrugated slip surfaces formed at ridge-transform intersections on the Mid-Atlantic Ridge, Nature. 385, 329-332, 1997.
12. Cannat, M., Emplacement of mantle rocks in the seafloor at mid-ocean ridges, J. Geophys. Res., 98, 4163-4172, 1993.
13. Cannat, M., and J. Pariso, Partial reorientation of the deformation structures at Site 735 using paleodeclination measurements, Proc. Ocean Drill. Program Sci. Results, 118, 409-414, 1991.
14. Cannat, M., et al., Proceedings of the Ocean Drilling Program, Initial Reports, vol. 153, Ocean Drill. Program, College Station, Tex., 1995a.
15. Cannat, M., et al., Thin crust, ultramafic exposures, and rugged faulting patterns at the Mid-Atlantic Ridge (22°-24°N), Geology, 23, 49-52, 1995b.
16. Ceulencer, G., and M. Cannat, High-temperature ductile deformation of Site 920 peridotites, Proc. Ocean Drill. Program Sci. Results, 153, 23-34, 1997.
17. Cogné, J. P., TRM deviations in anisotropic assemblages of multidomain magnetite, Geophys. J. R. Astron. Soc., 91, 1013-1023, 1987.
18. Day, R., M. D. Fuller, and V. A. Schmidt, Hysteresis properties of titanomagnetites: grain-size and compositional dependence, Phys. Earth Planet. Inter., 13, 260-267, 1977.
19. Dick, H. J. B., Abyssal peridotites, very slow spreading ridges and ocean ridge magmatism, in Magmatism in the Ocean Basins, edited by A. D. Saunders and M. J. Norry, Geol. Soc. Spec. Publ., 42, 71-105, 1989.
20. Dilek, Y., A. Coulton, and S. D. Hurst, Serpentinization and hydrothermal veining in peridotites at Site 920 in the MARK area, Proc. Ocean Drill. Program Sci. Results, 153, 35-59, 1997.
21. Durand, C., V. Ballu, P. Gente, and J. Dubois, Horst and graben structures on the flanks of the Mid-Atlantic Ridge in the MARK area (23°22′N): Submersible observation, Tectonophysics, 256, 275-297, 1996.
22. Fox, P. J., and D. G. Gallo, The geology of North Atlantic transform plate boundaries and their aseismic extensions, in The Geology of North America, vol. N, The Western North Atlantic Region, edited by B. E. Tucholke and P. Vogt, pp. 111-124, Geol. Soc. of Am., Boulder, Colo., 1986.
23. Francis, T. G. J., Serpentinization faults and their role in the tectonics of slow-spreading ridges, J. Geophys. Res., 86, 11,616-11,622, 1981.
24. Gala, M. G., and H. C. Palmer, Correction for deviations due to magnetic anisotropy of paleomagnetic directions from the Mulcahy Gabbro, north-west Ontario, Geophys. J. Int., 118, 485-498, 1994.
25. Gee, J., and W. P. Meurer, Slow cooling of mid-lower oceanic crust due to prolonged magmatic construction inferred from multicomponent magnetizations of gabbroic rocks from the MARK area, J. Geophys. Res., 10.1029/2000JB000062, in press, 2002.
26. Gee, J. S., R. M. Lawrence, and S. D. Hurst, Remanence characteristics of gabbros from the MARK area: Implications for crustal magnetization, Proc. Ocean Drill. Program Sci. Results, 153, 429-436, 1997.
27. Gillis, K., et al., Proceedings of the Ocean Drilling Program, Initial Reports, vol. 147, Ocean Drill. Program, College Station, Tex., 1993.
28. Hébert, R., A. C. Adamson, and S. C. Komor, Metamorphic petrology of ODP Leg 109, Hole 670A serpentinized peridotites: Serpentinization processes at a slow spreading ridge environment, Proc. Ocean Drill. Program Sci. Results, 106/109, 103-115, 1990.
29. 3 system, Phys. Earth Planet. Inter., 1, 103-121, 1968.
30. Hext, G., The estimation of second-order tensors, with related tests and designs, Biometrika, 50, 353-357, 1963.
31. Hurst, S. D., R. M. Lawrence, and J. S. Gee, Data report: Reorientation of structural features at Sites 920 to 924 using remanent magnetization and magnetic characteristics, Proc. Ocean Drill. Program Sci. Results, 153, 547-559, 1997.
32. Jelinek, V., Statistical processing of magnetic susceptibility measured in groups of specimens, Stud. Geophys. Geod., 22, 50-62, 1978.
33. Juteau, T., M. Cannat, and Y. Lagabrielle, Serpentinized peridotites in the upper oceanic crust away from transform zones: a comparison of the results of previous DSDP and ODP legs, Proc. Ocean Drill. Program Sci. Results, 106/109, 303-308, 1990.
34. Karson, J. A., Geological investigation of a lineated massif at the Kane transform: Implications for oceanic core complexes, Philos. Trans. R. Soc. London, 357, 713-740, 1999.
35. Karson, J. A., and H. J. B. Dick, Tectonics of ridge-transform intersections at the Kane fracture zone. Mar. Geophys. Res., 6, 51-98, 1983.
36. Karson, J. A., and R. M. Lawrence, Tectonic setting of serpentinite exposures on the western median valley wall of the MARK area in the vicinity of Site 920, Proc. Ocean Drill. Program Sci. Results, 153, 5-21, 1997a.
37. Karson, J. A., and R. M. Lawrence, Tectonic window into gabbroic rocks of the middle oceanic crust in the MARK area near Sites 921-924, Proc. Ocean Drill. Program Sci. Results, 153, 61-76, 1997b.
38. Karson, J. A., et al., Along axis variation in seafloor spreading in the MARK area, Nature, 328, 681-685, 1987.
39. Karson, J. A., M. Cannat, D. J. Miller, and D. Elthon, Proceedings of the Ocean Drilling Program, Scientific Results, vol. 153, Ocean Drill. Program, College Station, Tex., 1997.
40. Karson, J. K., Seafloor spreading on the Mid-Atlantic Ridge: Implications for the structure of ophiolites and oceanic lithosphere produced in slow- spreading environments, in Procedings of the Symposium "Troodos 1987," edited by J. Malpas et al., pp. 547-555. Geol. Surv. Dep., Nicosia, Cyprus, 1990.
41. Kirschvink, J. L., The least-squares line and plane and the analysis of paleomagnetic data, Geophys. J. R. Astron. Soc., 62, 699-718, 1980.
42. Komor, S. C., T. L. Grove, and R. Hébert, Abyssal peridotites from ODP Hole 670A (21°10′N, 45°02′W): Residues of mantle melting exposed by non-constructive axial divergence, Proc. Ocean Drill. Program Sci. Results, 106/109, 85-101, 1990.
43. Lagabrielle, Y., D. Bideau, M. Cannat, J. A. Karson, and C. Mével, Ultramafic plutonic rocks exposed along the Mid-Atlantic Ridge (10°N-30°N): Symmetrical-asymmetrical distribution and implications for seafloor spreading processes, in Faulting and Magmatism at Mid-ocean Ridges, Geophys. Monogr. Ser., vol. 106, edited by W. R. Buck et al., pp. 153-176, AGU, Washington, D. C., 1998.
44. Lawrence, R. M., J. S. Gee, and S. D. Hurst, Magnetic anisotropy in serpentinized peridotites from Site 920: Its origin and relationship to deformation fabrics, Proc. Ocean Drill. Program Sci. Results, 153, 419-427, 1997.
45. Lawrence, R. M., J. A. Karson, and S. D. Hurst, Dike orientations, fault- block rotations and the construction of slow-spreading oceanic crust at 22°40′N on the Mid-Atlantic Ridge, J. Geophys. Res., 103, 663-676, 1998.
46. Lowrie, W., and D. V. Kent, Viscous remanent magnetization in basalt samples, Initial Rep. Deep Sea Drill. Proj., 34, 479-484, 1976.
47. Marks, N. S., Sedimentation of new oceanic crust: The Mid-Atlantic Ridge at 37°N, Mar. Geol., 43, 65-82, 1981.
48. McFadden, P. L., and M. W. McElhinny, A physical model for palaeosecular variation, Geophys. J. R. Astron. Soc., 78, 809-830, 1984.
49. McFadden, P. L., and A. B. Reid, Analysis of palaeomagnetic inclination data, Geophys. J. R. Astron. Soc., 69, 307-319, 1982.
50. Mével, C., M. Cannat, P. Gente, E. Marion, J. M. Auzende, and J. A. Karson, Emplacement of deep crustal and mantle rocks on the west median valley wall of the MARK area (M.A.R. 23°N), Tectonophysics, 190, 31-53, 1991.
51. Miyashiro, A., F. Shido, and M. Ewing, Composition and origin of serpentinites from the Mid-Atlantic Ridge, 24° and 30°N, Contrib. Mineral. Petrol., 32, 38-52, 1969.
52. Moskowitz, B. M., Magnetic viscosity, diffusion after-effect, and disaccommodation in natural and synthetic samples, Geophys. J. R. Astron. Soc., 82, 143-161, 1985.
53. Mutter, J. C., and J. A. Karson, Structural processes at slow-spreading ridges, Science, 257, 627-634, 1992.
54. Purdy, G. M., and P. D. Rabinowitz, The Kane fracture zone at the Mid- Atlantic Ridge: IPOD Sites 395 and 396 (map), Initial Rep. Deep Sea Drill. Proj., 45, 1979.
55. Purdy, G. M., J.-C. Sémpére, H. Schouten, D. L. DuBois, and R. Goldsmith, Bathymetry of the Mid-Atlantic Ridge, 24°-31°N: A map series, Mar. Geophys. Res., 12, 247-252, 1990.
56. Robinson, P. T., et al., Proceedings of the Ocean Drilling Program, Initial Reports, vol. 118, Ocean Drill. Program, College Station, Tex., 1989.
57. Schulz, N. J., R. S. Detrick, and S. P. Miller, Two- and three-dimensional inversions of magnetic anomalies in the MARK area (Mid-Atlantic Ridge 23°N), Mar. Geophys. Res., 10, 41-57, 1988.
58. Stacey, F. D., and S. K. Banerjee, The Physical Principles of Rock Magnetism, 195 pp., Elsevier Sci., New York, 1974.
59. Stephenson, A., S. Sadikun, and D. K. Potter, A theoretical and experimental comparison of the anisotropies of magnetic susceptibility and remanence in rocks and minerals, Geophys. J. R. Astron. Soc., 84, 185-200, 1986.
60. Stokking, L., and L. Tauxe, Acquisition of chemical remanent magnetization by synthetic iron oxide, Nature, 327, 610-612, 1987.
61. Stoner, E. C., and E. P. Wohlfarth, A mechanism of magnetic hysteresis in heterogeneous alloys, Philos. Trans. R. Soc. London, Ser. A., 240, 599-642, 1948.
62. Sturm, M., S. Goldstein, E. M. Klein, J. A. Karson, and M. T. Murrell, Uranium-series age constraints on lavas from the axial valley of the Mid- Atlantic Ridge, MARK Area, Earth Planet. Sci. Lett., 181, 61-70, 2000.
63. Tarling, D. H., and F. Hrouda, The Magnetic Anisotropy of Rocks, 217 pp., Chapman and Hall, New York, 1993.
64. Toft, P. B., J. Arkani-Hamed, and S. E. Haggerty, The effects of serpentinization on density and magnetic susceptibility: A petrophysical model, Phys. Earth Planet. Inter., 65, 137-157, 1990.
65. Toomey, D. R., S. C. Soloman, and G. M. Purdy, Microearthquakes beneath the median valley of the Mid-Atlantic Ridge near 23°N: Tomography and tectonics, J. Geophys. Res., 93, 9093-9112, 1988.
66. Tucholke, B. E., J. Lin, and M. C. Kleinrock, Megamullions and mullion structure defining oceanic metamorphic core complexes on the Mid-Atlantic Ridge, J. Geophys. Res., 103, 9857-9866, 1998.
67. Wernicke, B., and G. J. Axen, On the role of isostacy in the evolution of normal fault system, Geology, 16, 848-851, 1988.
68. Westaway, R., and N. Kusznir, Fault and bed 'rotation' during continental extension: Block rotation or vertical shear?, J. Struct. Geol., 15, 753-770, 1993.