Megamullions and mullion structure defining oceanic metamorphic core complexes on the Mid-Atlantic Ridge

Journal of Geophysical Research: Solid Earth

Volumn 103, Issue 5, 1998, Pages 9857-9866

  Tucholke, Brian E ^a   Lin, Jian ^a   Kleinrock, Martin C ^b  

^a WOODS HOLE OCEANOGRAPHIC INSTITUTION   (United States)

^b VANDERBILT UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

METAMORPHIC CORE; MID OCEAN RIDGE; MULLION;

ATLANTIC; MID-ATLANTIC RIDGE;

EID: 0003199623     PISSN: 21699313     EISSN: 21699356     Source Type: Journal    
DOI: 10.1029/98jb00167     Document Type: Article

References (67)

1. Armstrong, R. L., Cordilleran metamorphic core complexes - From Arizona to southern California, Annu. Rev. Earth Planet. Sci., 10, 129-154, 1982.
2. Auzende, J.-M., M. Cannat, P. Gente, J.-P. Henriet, T. Juteau, J. Karson, Y. Lagabrielle, C. Mével, and M. Tivey, Observation of sections of oceanic crust and mantle cropping out on the southern wall of Kane FZ (N. Atlantic), Terra Nova, 6, 143-148, 1994.
3. Bergman, E. A., and S. C. Solomon, Earthquake swarms on the Mid-Atlantic Ridge: Products of magmatism or extensional tectonics?, J. Geophys. Res., 95, 4943-4965, 1990.
4. Buck, W. R., Flexural rotation of normal faults. Tectonics, 7, 959-973, 1988.
5. Cande, S. C., and D. V. Kent, Revised calibration of the geomagnetic polarity timescale for the Late Cretaceous and Cenozoic, J. Geophys. Res., 100, 6093-6095, 1995.
6. Cann, J. R., D. K. Blackman, D. K. Smith, E. McAllister, B. Janssen, S. Mello, E. Avgerinos, A. R. Pascoe, and J. Escartín, Corrugated slip surfaces formed at ridge-transform intersections on the Mid-Atlantic Ridge, Nature, 385, 329-332, 1997.
7. Cannat, M., How thick is the magmatic crust at slow spreading oceanic ridges?, J. Geophys. Res., 101, 2847-2857, 1996.
8. Cannat, M., D. Bideau, and H. Bougault, Serpentinized peridotites and gabbros in the Mid-Atlantic Ridge axial valley at 15°37′N and 16°52′N, Earth Planet. Sci. Lett., 109, 87-106, 1992.
9. Cannat, M., C. Mével, M. Maia, C. Deplus, C. Durand, P. Gente, P. Agrinier, A. Belarouchi, G. Dubuisson, E. Humler, and J. Reynolds, Thin crust, ultramafic exposures, and rugged faulting patterns at the Mid-Atlantic Ridge (22°-24°N), Geology, 23, 49-52, 1995.
10. Coleman, R. G., Petrologic and geophysical nature of serpentinites, Geol Soc. Am. Bull., 82, 897-918, 1971.
11. Collette, B. J., Thermal contraction joints in a spreading seafloor as origin of fracture zones, Nature, 251, 299-300, 1974.
12. Coulton, A. J., G. D. Harper, and D. S. O'Hanley, Oceanic versus emplacement age serpentinization in the Josephine ophiolite: Implications for the nature of the Mono at intermediate and slow spreading ridges, J. Geophys. Res., 100, 22,245-22,260, 1995.
13. Crittenden, M. D., Jr., P. J. Coney, and G. H. Davis (Eds.), Cordilleran metamorphic core complexes, Mem. Geol. Soc. Am., 153, 490 pp., 1980.
14. Davis, G. A., and G. S. Lister, Detachment faulting in continental extension: Perspectives from the southwestern U.S. Cordillera, Spec. Pap. Geol. Soc. Am., 218, 133-159, 1988.
15. Davis, G. H., and P. J. Coney, Geologic development of Cordilleran metamorphic core complexes, Geology, 7, 120-124, 1979.
16. Dick, H. J. B., G. Thompson, and W. B. Bryan, Low angle faulting and steady-state emplacement of plutonic rocks at ridge-transform intersections, Eos Trans. AGU, 62, 406, 1981.
17. Escartín, J., G. Hirth, and B. Evans, Effects of serpentinization on the lithospheric strength and the style of normal faulting at slow-spreading ridges, Earth Planet. Sci. Lett., 151, 181-189, 1997a.
18. Escartin, J., G. Hirth, and B. Evans, Non-dilatant brittle deformation of serpentinites: Implications for Mohr-Coulomb theory and the strength of faults, J. Geophys. Res., 102, 2897-2913, 1997b.
19. Fletcher, J. M., J. M. Bartley, M. W. Martin, A. F. Glazner, and J. D. Walker, Large-magnitude continental extension: An example from the central Mojave metamorphic core complex, Geol. Soc. Am. Bull., 107, 1468-1483, 1995.
20. Forsyth, D. W., Finite extension and low-angle normal faulting. Geology, 20, 27-30, 1992.
21. Fujimoto, H., N. Seama, J. Lin, T. Matsumoto, T. Tanaka, and K. Fujioka, Gravity anomalies of the Mid-Atlantic north of the Kane fracture zone, Geophys. Res. Lett., 23, 3431-3434, 1996.
22. Gente, P., R. A. Pockalny, C. Durand, C. DePlus, M. Maia, G. Ceuleneer, C. Mével, M. Cannat, and C. Laverne, Characteristics and evolution of the segmentation of the Mid-Atlantic Ridge between 20°N and 24°N during the last 10 million years, Earth Planet. Sci. Lett., 129, 55-71, 1995.
23. Hamilton, W. B., Detachment faulting in the Death Valley region, California and Nevada, U.S. Geol. Surv Bull., 1790, 51-85, 1988.
24. Harper, G. D., Tectonics of slow spreading mid-ocean ridges and consequences of a variable depth to the brittle/ductile transition, Tectonics, 4, 395-409, 1985.
25. Hodges, K. V., J. D. Walker, and B. P. Wernicke, Footwall structural evolution of the Tucki Mountain detachment system, Death Valley region, southeastern California, Geol. Soc. Spec. Publ., 28, 393-408, 1987.
26. Jaroslow, G. E., G. Hirth, and H. J. B. Dick, Abyssal peridotite mylonites: Implications for grain-size sensitive flow and strain localization in the oceanic lithosphere, Tectonophysics, 256, 17-37, 1996.
27. John, B. E., Geometry and evolution of a mid-crustal extensional fault system: Chemehuevi Mountains, southeastern California, Geol. Soc. Spec. Publ., 28, 313-335, 1987.
28. Joint Oceanographic Institutions Inc., Ocean Drilling Program long range plan 1989-2002, 119 pp., Washington, D.C., 1990.
29. Karson, J. A., Seafloor spreading on the Mid-Atlantic Ridge: Implications for the structure of ophiolites and oceanic lithosphere produced in slow-spreading environments, in Proceedings of the Symposium TROODOS 1987, edited by J. Malpas et al., pp. 547-555, Geol. Surv. Dep., Nicosia, Cyprus, 1990.
30. Kong, L. S., S. C. Solomon, and G. M. Purdy, Microearthquake characteristics of a mid-ocean ridge along-axis high, J. Geophys. Res., 97, 1659-1685, 1992.
31. Kuo, B. Y., and D. W. Forsyth, Gravity anomalies of the ridge-transform system in the South Atlantic between 31° and 34.5°S: Upwelling centers and variations in crustal thickness, Mar. Geophys. Res.. 10, 205-232, 1988.
32. Lee, J.-J., and R. L. Bruhn, Structural anisotropy of normal fault surfaces, Geol. Soc. Am. Abstr. Programs, 24, 23, 1992.
33. Lin, J., and E. M. Parmentier, Mechanisms of lithospheric extension at mid-ocean ridges, Geophys. J., 96, 1-22, 1989.
34. Lin, J., G. M. Purdy, H. Schouten, J.-C. Sempere, and C. Zervas, Evidence from gravity data for focused magmatic accretion along the Mid-Atlantic Ridge, Nature, 344, 627-632, 1990.
35. Macdonald, A. H., and W. S. Fyfe, Rate of serpentinization in seafloor environments, Tectonophysics, 116, 123-135, 1985.
36. Macdonald, K. C., The crest of the Mid-Atlantic Ridge: Models for crustal generation processes and tectonics, in The Geology of North America, vol. M, The Western North Atlantic Region, edited by P. R. Vogt and B. E. Tucholke, pp. 51-68, Geol. Soc. of Am., Boulder, Colo., 1986.
37. Macdonald, K. C., D. S. Scheirer, S. Carbotte, and P. J. Fox, It's only topography: Part 2, GSA Today, 3, 29-35, 1993.
38. Mancktelow, N. S., and T. L. Pavlis, Fold-fault relationships in low-angle detachment systems, Tectonics, 13, 668-685, 1994.
39. Manning, A. H., and J. M. Bartley, Postmylonitic deformation in the Raft River metamorphic core complex, northwestern Utah: Evidence of a rolling hinge, Tectonics, 13, 596-612, 1994.
40. Menard, H. W., and T. M. Atwater, Changes in direction of sea floor spreading, Nature, 219, 463-467, 1968.
41. Pariso, J. E., J.-C. Sempéré, and C. Rommevaux, Temporal and spatial variations in crustal accretion along the Mid-Atlantic Ridge (29°-31°30′N) over the last 10 m.y.: Implications from a three-dimensional gravity study, J. Geophys. Res., 100, 17,781-17,794, 1995.
42. Pockalny, R. A., R. S. Detrick, and P. J. Fox, Morphology and tectonics of the Kane transform from Sea Beam bathymetry data, J. Geophys. Res., 93, 3179-3193, 1988.
43. Purdy, G. M., J.-C. Sempere, 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.
44. Raleigh, C. B., and M. S. Paterson, Experimental deformation of serpentinite and its tectonic implications, J. Geophys. Res., 70, 3965-3985, 1965.
45. Reinen, L. A., J. D. Weeks, and T. E. Tullis, The frictional behavior of lizardite and antigorite serpentinites: Experiments, constitutive models, and implications for natural faults, Pure Appl. Geophys., 143, 318-358, 1994.
46. Rommevaux, C., C. Deplus, P. Patriat, and J. Sempéré, Three-dimensional gravity study of the Mid-Atlantic Ridge: Evolution of the segmentation between 28° and 29°N during the last 10 m.y., J. Geophys. Res., 99, 3015-3029, 1994.
47. 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.
48. Sempéré, J.-C., P. Blondel, A. Briais, T. Fujiwara, L. Géli, N. Isezaki, J. E. Pariso, L. Parson, P. Patriat, and C. Rommevaux, The Mid-Atlantic Ridge between 29°N and 31°30′N in the last 10 Ma, Earth Planet. Sci. Lett., 130, 45-55, 1995.
49. Shaw, P. R., and J. Lin, Causes and consequences of variations in faulting style at the Mid-Atlantic Ridge, J. Geophys. Res., 98, 21,839-21,851, 1993.
50. Shaw, W. J., and J. Lin, Models of ocean ridge lithospheric deformation: Dependence on crustal thickness, spreading rate, and segmentation, J. Geophys. Res., 101, 17,977-17,993, 1996.
51. Sinton, J. M., and R. S. Detrick, Mid-ocean ridge magma chambers, J. Geophys. Res., 97, 197-216, 1992.
52. Smith, W. H. F., and D. T. Sandwell, Marine gravity field from declassified Geosat and ERS-1 altimetry, Eos Trans. AGU, 76(46), Fall Meet. Suppl., F156, 1995.
53. Sparks, D. W., E. M. Parmentier, and J. Phipps Morgan, Three-dimensional mantle convection beneath a segmented spreading center: Implications for along-axis variations in crustal thickness and gravity, J. Geophys. Res., 98, 21,977-21,995, 1993.
54. Spencer, J. E., Origin of folds of Tertiary low-angle fault surfaces southeastern California and western Arizona, in Mesozoic-Cenozoic Tectonic Evolution of the Colorado River Region, California, Arizona, and Nevada, edited by E. G. Frost and D. G. Martin, pp. 123-134, Cordilleran Publ., San Diego, Calif., 1982.
55. Stewart, J. H., Extensional tectonics in the Death Valley area, California: Transport of the Panamint Range structural block 80 km northwestward, Geology, 11, 153-157, 1983.
56. Tolstoy, M., A. J. Harding, and J. A. Orcutt, Crustal thickness on the Mid-Atlantic Ridge: Bull's eye gravity anomalies and focused accretion, Science, 262, 726-729, 1993.
57. Toomey, D. R., S. C. Solomon, and G. M. Purdy, Microearthquakes beaneath the median valley of the Mid-Atlantic Ridge near 23°N: Tomography and tectonics, J. Geophys. Res., 93, 9093-9112, 1988.
58. Tucholke, B. E., and J. Lin, A geological model for the structure of ridge segments in slow spreading ocean crust, J. Geophys. Res., 99, 11,937-11,958, 1994.
59. Tucholke, B. E., and H. Scheuten, Kane Fracture Zone, Mar. Geophys. Res., 10, 1-39, 1988.
60. Tucholke, B. E., and P. R. Vogt, Western North Atlantic: Sedimentary evolution and aspects of tectonic history. Initial Rep. Deep Sea Drill. Proj., 43, 791-825, 1979.
61. Tucholke, B. E., J. Lin, and M. C. Kleinrock, Mullions, megamullions, and metamorphic core complexes on the Mid-Atlantic Ridge, Eos Trans. AGU, 77(46), Fall Meet. Suppl., F724, 1996.
62. Tucholke, B. E., J. Lin, M. A. Tivey, M. C. Kleinrock, T. B. Reed, J. A. Goff, and G. E. Jaroslow, Segmentation and crustal structure of the western Mid-Atlantic Ridge flank, 25°25′-27°10′N and 0-29 m.y., J. Geophys. Res., 102, 10,203-10,223, 1997.
63. Turcotte, D. L., Are transform faults thermal contraction cracks?, J. Geophys. Res., 79, 2573-2577, 1974.
64. Wernicke, B. P., and G. J. Axen, On the role of isostasy in the evolution of normal fault systems, Geology, 16, 848-851, 1988.
65. Wolfe, C. J., G. M. Purdy, D. R. Toomey, and S. C. Solomon, Microearthquake characteristics and crustal velocity structure at 29°N on the Mid-Atlantic Ridge: The architecture of a slow spreading segment, J. Geophys. Res., 100, 24,449-24,472, 1995.
66. Wright, L. A., J. K. Otton, and B. W. Troxel, Turtleback surfaces of Death Valley viewed as phenomena of extensional tectonics. Geology, 2, 53-54, 1974.
67. Yin, A., and J. F. Dunn, Structural and stratigraphic development of the Whipple-Chemehuevi detachment fault system, southeastern California: Implications for the geometrical evolution of domal and basinal low-angle normal faults, Geol. Soc. Am. Bull., 104, 659-674, 1992.