REFERENCES

Alt, J.C., Kinoshita, H., Stokking, L.B., et al., 1993. Proc. ODP, Init. Repts., 148: College Station, TX (Ocean Drilling Program).

Aumento, F., and Loubat, H., 1971. The Mid-Atlantic Ridge near 45ºN. XVI. Serpentinized ultramafic intrusions. Can. J. Earth Sci., 8:631-663.

Bloomer, S.H., and Meyer, P.S., 1992. Mid-ocean ridges; slimline magma chambers; discussion. Nature, 357:117-118.

Bloomer, S.H., Meyer, P.S., Dick, H.J.B., Ozawa, K., and Natland, J.H., 1991. Textural and mineralogic variations in gabbroic rocks from Hole 735B. In Von Herzen, R.P., Robinson, P.T., et al., Proc. ODP, Sci. Results, 118: College Station, TX (Ocean Drilling Program), 21-39.

Bowen, N.L., 1920. Differentiation by deformation. Proc. Nat. Acad. Sci., 6:159-162.

Bown, J.W., and White, R.S., 1994. Variation with spreading rate of oceanic crustal thickness and geochemistry. Earth Planet. Sci. Lett., 121:435-449.

Cande, S.C., and Kent, D.V., 1995. Revised calibration of the geomagnetic polarity timescale for the Late Cretaceous and Cenozoic. J. Geophys. Res., 100:6093-6095.

Cannat, M., 1991. Plastic deformation at an oceanic spreading ridge: a microstructural study of Site 735 gabbros (southwest Indian Ocean). In Von Herzen, R.P., Robinson, P.T., et al., Proc. ODP, Sci. Results, 118: College Station, TX (Ocean Drilling Program), 399-408.

--------, 1993. Emplacement of mantle rocks in the seafloor at mid-ocean ridges. J. Geophys. Res., 98:4163-4172.

Cannat, M., Karson, J.A., Miller, D.J., et al., 1995. Proc. ODP, Init. Repts., 153: College Station, TX (Ocean Drilling Program).

Cannat, M., Mével, C., and Stakes, D., 1991. Normal ductile shear zones at an oceanic spreading ridge: tectonic evolution of Site 735 gabbros (southwest Indian Ocean). In Von Herzen, R.P., Robinson, P.T., et al., Proc. ODP, Sci. Results, 118: College Station, TX (Ocean Drilling Program), 415-429.

Carbotte, S., and Macdonald, K., 1992. East Pacific Rise 8º'10º30'N: evolution of ridge segments and discontinuities from SeaMARC II and three-dimensional magnetic studies. J. Geophys. Res., 97:6959-6982.

Christensen, N.I., and Salisbury, M.H., 1975. Structure and constitution of the lower oceanic crust. Rev. Geophys. Space Phys., 13:57-86.

Clark, S.P. (Ed.), 1966. Handbook of Geophysical Constants. Mem.--Geol. Soc. Am., 97.

Coleman, R.G., 1977. Ophiolites: Ancient Oceanic Lithosphere: New York (Springer-Verlag).

Detrick, R.S., Mutter, J.C., Buhl, P., and Kim, I.I., 1990. No evidence from multichannel seismic reflection data for a crustal magma chamber in the MARK area on the Mid-Atlantic Ridge. Nature, 347:61-64.

Dick, H.J.B., 1989. Abyssal peridotites, very slow spreading ridges and ocean ridge magmatism. In Saunders, A.D., and Norry, M.J. (Eds.), Magmatism in the Ocean Basins. Geol. Soc. Spec. Publ. London, 42:71-105.

Dick, H.J.B., Bryan, W.B., and Thompson, G., 1981. Low-angle faulting and steady-state emplacement of plutonic rocks at ridge-transform intersections. Eos, 62:406.

Dick, H.J.B., Meyer, P.S., Bloomer, S., Kirby, S., Stakes, D., and Mawer, C., 1991a. Lithostratigraphic evolution of an in-situ section of oceanic Layer 3. In Von Herzen, R.P., Robinson, P.T., et al., Proc. ODP, Sci. Results, 118: College Station, TX (Ocean Drilling Program), 439-538.

Dick, H.J.B., Robinson, P.T., and Meyer, P.S., 1992. The plutonic foundation of a slow-spreading ridge. In Duncan, R.A., Rea, D.K., Weissel, J.K., von Rad, U., and Kidd, R.B. (Eds.), The Indian Ocean: A Synthesis of Results from the Ocean Drilling Program. Geophys. Monogr., Am. Geophys. Union, 70:1-50.

Dick, H.J.B., Schouten, H., Meyer, P.S., Gallo, D.G., Berg, H., Tyce, R., Patriat, P., Johnson, K., Snow, J., and Fisher, A., 1991b. Bathymetric map of the Atlantis II Fracture Zone, Southwest Indian Ridge. In Von Herzen, R.P., Robinson, P.T., et al., Proc. ODP, Sci. Results, 118: College Station, TX (Ocean Drilling Program), foldout map.

Dick, H.J.B., Schouten, H., Meyer, P.S., Gallo, D.G., Bergh, H., Tyce, R., Patriat, P., Johnson, K.T.M., Snow, J., and Fisher, A., 1991c. Tectonic evolution of the Atlantis II Fracture Zone. In Von Herzen, R.P., Robinson, P.T., et al., Proc. ODP, Sci. Results, 118: College Station, TX (Ocean Drilling Program), 359-398.

Engel, C.G., and Fisher, R.L., 1975. Granitic to ultramafic rock complexes of the Indian Ocean Ridge system, western Indian Ocean. Geol. Soc. Am. Bull., 86:1553-1578.

Fisher, R.L., Dick, H.J.B., Natland, J.H., and Meyer, P.S., 1986. Mafic/ultramafic suites of the slowly spreading southwest Indian Ridge: Protea exploration of the Antarctic Plate Boundary, 24ºE'47ºE. Ophioliti, 11:147-178.

Fisher, R.L., and Sclater, J.G., 1983. Tectonic evolution of the southwest Indian Ocean since the mid-Cretaceous: plate motions and stability of the pole of Antarctica/Africa for at least 80 Myr. Geophys. J. R. Astron. Soc., 73:553-576.

Fox, P.J., and Opdyke, N.D., 1973. Geology of the oceanic crust: magnetic properties of oceanic rocks. J. Geophys. Res., 78:5139-5154.

Gillis, K., Mével, C., Allan, J., et al., 1993. Proc. ODP, Init. Repts., 147: College Station, TX (Ocean Drilling Program).

Harper, G.D., 1985. Tectonics of slow spreading mid-ocean ridges and consequences of a variable depth to the brittle/ductile transition. Tectonics, 4:395-409.

Hess, H.H., 1962. History of ocean basins. Geol. Soc. Am., Buddington Vol., 599-620.

Hill, M.N., 1957. Recent geophysical exploration of the ocean floor. Phys. Chem. Earth, 2:129-163.

Hopkinson, L., and Roberts, S., 1995. Ridge axis deformation and coeval melt migration within layer 3 gabbros: evidence from the Lizard Complex. U.K. Contrib. Mineral. Petrol., 121:126-138.

Iturrino, G.J., Christensen, N.I., Kirby, S., and Salisbury, M.H., 1991. Seismic velocities and elastic properties of oceanic gabbroic rocks from Hole 735B. In Von Herzen, R.P., Robinson, P.T., et al., Proc. ODP, Sci. Results, 118: College Station, TX (Ocean Drilling Program), 227-244.

Jackson, H.R., Reid, I., and Falconer, R.K.H., 1982. Crustal structure near the Arctic mid-ocean ridge. J. Geophys. Res., 87:1773-1783.

Karson, J.A., 1990. Seafloor spreading on the Mid-Atlantic Ridge: implications for the structure of ophiolites and oceanic lithosphere produced in slow-spreading environments. In Malpas, J., Moores, E.M., Panayiotou, A., and Xenophontos, C. (Eds.), Ophiolites: Oceanic Crustal Analogues: Proc. Symp. "Troodos 1987": Nicosia, Cyprus (Minist. Agric. Nat. Resour.), 547-555.

--------, 1991. Accommodation zones and transfer faults: integral components of Mid-Atlantic Ridge extensional systems. In Peters, U.J., Nicolas, A., and Coleman, R.G. (Eds.), Ophiolites Genesis and Evolution of Oceanic Lithosphere: Dordrecht (Kluwer Academic), 21-37.

Karson, J.A., and Dick, H.J.B., 1983. Tectonics of ridge-transform intersections at the Kane Fracture Zone. Mar. Geophys. Res., 6:51-98.

Karson, J.A., Thompson, G., Humphris, S.E., Edmond, J.M., Bryan, W.B., Brown, J.R., Winters, A.T., Pockalny, R.A., Casey, J.F., Campbell, A.C., Klinkhammer, G., Palmer, M.R., Kinzler, R.J., and Sulanowska, M.M., 1987. Along-axis variations in seafloor spreading in the MARK area. Nature, 328:681-685.

Kent, D.V., Honnorez, B.M., Opdyke, N.D., and Fox, P.J., 1978. Magnetic properties of dredged oceanic gabbros and source of marine magnetic anomalies. Geophys. J. R. Astron. Soc., 55:513-537.

Kikawa, E., and Ozawa, K., 1992. Contribution of oceanic gabbros to sea-floor spreading magnetic anomalies. Science, 258:796-799.

Kikawa, E., and Pariso, J.E., 1991. Magnetic properties of gabbros from Hole 735B, Southwest Indian Ridge. In Von Herzen, R.P., Robinson, P.T., et al., Proc. ODP, Sci. Results, 118: College Station, TX (Ocean Drilling Program), 285-307.

MacLeod, C.J., Boudier, F., Yaouancq, G., and Richter, C., 1996. Gabbro fabrics from Site 894, Hess Deep: implications for magma chamber processes at the East Pacific Rise. In Mével, C., Gillis, K.M., Allan, J.F., and Meyer, P.S. (Eds.), Proc. ODP, Sci. Results, 147: College Station, TX (Ocean Drilling Program), 317-328.

Magde, L.S., Dick, H.J.B., and Hart, S.R., 1995. Tectonics, alteration and fractal distribution of hydrothermal veins in the lower ocean crust. Earth Planet. Sci. Lett., 129:103-119.

Manning, C.E., and MacLeod, C.J., 1996. Fracture-controlled metamorphism of Hess Deep gabbros, Site 894: constraints on the roots of mid-ocean-ridge hydrothermal systems at fast-spreading centers. In Mével, C., Gillis, K.M., Allan, J.F., and Meyer, P.S. (Eds.), Proc. ODP, Sci. Results, 147: College Station, TX (Ocean Drilling Program), 189-212.

McCarthy, J., Mutter, J.C., Morton, J.L., Sleep, N.H., and Thompson, G.A., 1988. Relic magma chamber structures preserved within the Mesozoic North Atlantic crust? Geol. Soc. Am. Bull., 100:1423-1436.

McFadden, P.L., and Reid, A.B., 1982. Analysis of paleomagnetic inclination data. Geophys. J. R. Astron. Soc., 69:307-319.

Mével, C., and Cannat, M., 1991. Lithospheric stretching and hydrothermal processes in oceanic gabbros from slow-spreading ridges. In Peters, T., Nicolas, A., and Coleman, R.J. (Eds.), Ophiolite Genesis and Evolution of the Oceanic Lithosphere. Petrol. Struct. Geol., 5:293-312.

Mével, C., Cannat, M., Gente, P., Marion, E., Auzende, J.-M., and Karson, J.A., 1991. Emplacement of deep crustal and mantle rocks on the west median valley wall of the MARK area (MAR 23ºN). Tectonophysics, 190:31-53.

Minshull, T.A., and White, R.S., 1996. Thin crust on the flanks of the slow spreading Southwest Indian Ridge. Geophys. J. Int., 125:139-148.

Muller, M.R., Robinson, C.J., Minshull, R.S., and Bickle, M.J., 1997. Thin crust beneath ocean drilling program borehole 735B at the Southwest Indian Ridge? Earth Planet. Sci. Lett., 148:93-108.

Mutter, J.C., and Detrick, R.S., 1984. Multichannel seismic evidence for anomalously thin crust at Blake Spur fracture zone. Geology, 12:534-537.

Mutter, J.C., and North Atlantic Transect (NAT) Study Group, 1985. Multichannel seismic images of the oceanic crust's internal structure: evidence for a magma chamber beneath the Mesozoic Mid-Atlantic Ridge. Geology, 13:629-632.

Natland, J.H., and Dick, H.J.B., 1996. Melt migration through high-level gabbroic cumulates of the East Pacific Rise at Hess Deep: the origin of magma lenses and the deep crustal structure of fast-spreading ridges. In Mével, C., Gillis, K.M., Allan, J.F., and Meyer, P.S. (Eds.), Proc. ODP, Sci. Results, 147: College Station, TX (Ocean Drilling Program), 21-58.

Natland, J.H., Meyer, P.S., Dick, H.J.B., and Bloomer, S.H., 1991. Magmatic oxides and sulfides in gabbroic rocks from Hole 735B and the later development of the liquid line of descent. In Von Herzen, R.P., Robinson, P.T., et al., Proc. ODP, Sci. Results, 118: College Station, TX (Ocean Drilling Program), 75-111.

Nicolas, A., Boudier, F., and Ildefonse, B., 1996. Variable crustal thickness in the Oman ophiolite: implication for oceanic crust. J. Geophys. Res., 101:17941-17950.

Ozawa, K., Meyer, P.S., and Bloomer, S.H., 1991. Mineralogy and textures of iron-titanium oxide gabbros and associated olivine gabbros from Hole 735B. In Von Herzen, R.P., Robinson, P.T., et al., Proc. ODP, Sci. Results, 118: College Station, TX (Ocean Drilling Program), 41-73.

Pariso, J.E., and Johnson, H.P., 1993. Do lower crustal rocks record reversals of the Earth's magnetic field? Magnetic petrology of gabbros from Ocean Drilling Program Hole 735B. J. Geophys. Res., 98:16013-16032.

Pariso, J.E., Scott, J.H., Kikawa, E., and Johnson, H.P., 1991. A magnetic logging study of Hole 735B gabbros at the Southwest Indian Ridge. In Von Herzen, R.P., Robinson, P.T., et al., Proc. ODP, Sci. Results, 118: College Station, TX (Ocean Drilling Program), 309-321.

Penrose Conference Participants, 1972. Penrose field conference on ophiolites. Geotimes, 17:24-25.

Raitt, R.W., 1963. The crustal rocks. In Hill, M.N. (Ed.), The Sea--Ideas and Observations on Progress in the Study of the Seas (Vol. 3): The Earth Beneath the Sea: New York (Wiley-Interscience), 85-102.

Reid, I., and Jackson, H.R., 1981. Oceanic spreading rate and crustal thickness. Mar. Geophys. Res., 5:165-172.

Robinson, P.T., Dick, H.J.B., and Von Herzen, R.P., 1991. Metamorphism and alteration in oceanic layer 3: Hole 735B. In Von Herzen, R.P., Robinson, P.T., et al., Proc. ODP, Sci. Results, 118: College Station, TX (Ocean Drilling Program), 541-552.

Robinson, P.T., Von Herzen, R., et al., 1989. Proc. ODP, Init. Repts., 118: College Station, TX (Ocean Drilling Program).

Sinton, J.M., and Detrick, R.S., 1992. Mid-ocean ridge magma chambers. J. Geophys. Res., 97:197-216.

Stakes, D., Mével, C., Cannat, M., and Chaput, T., 1991. Metamorphic stratigraphy of Hole 735B. In Von Herzen, R.P., Robinson, P.T., et al., Proc. ODP, Sci. Results, 118: College Station, TX (Ocean Drilling Program), 153-180.

Stakes, D.S., 1991. Oxygen and hydrogen isotope compositions of oceanic plutonic rocks: high-temperature deformation and metamorphism of oceanic layer 3. In Taylor, H.P., Jr., O'Neil, J.R., and Kaplan, I.R. (Eds.), Stable Isotope Geochemistry: A Tribute to Samuel Epstein. Spec. Publ. Geochem. Soc., 3:77-90.

Swift, S.A., Hoskins, H., and Stephen, R.A., 1991. Seismic stratigraphy in a transverse ridge, Atlantis II Fracture Zone. In Von Herzen, R.P., Robinson, P.T., et al., Proc. ODP, Sci. Results, 118: College Station, TX (Ocean Drilling Program), 219-226.

Thompson, G., and Melson, W.G., 1972. The petrology of oceanic crust across fracture zones in the Atlantic Ocean: evidence of a new kind of sea-floor spreading. J. Geol., 80:526-538.

Tucholke, B.E., and Lin, J., 1994. A geological model for the structure of ridge segments in slow-spreading ocean crust. J. Geophys. Res., 99:11937-11958.

Vanko, D.A., and Stakes, D.S., 1991. Fluids in oceanic layer 3: evidence from veined rocks, Hole 735B, Southwest Indian Ridge. In Von Herzen, R.P., Robinson, P.T., et al., Proc. ODP, Sci. Results, 118: College Station, TX (Ocean Drilling Program), 181-215.

Whitehead, J.A., Dick, H.J.B., and Shouten, H., 1984. A mechanism for magmatic accretion under spreading centers. Nature, 312:146-148.