The mid-Atlantic ridge near 45øN: Serpentinized ultramafic intrusions, Can. J. Earth Sci, vol.8, pp.631-663, 1971. ,
Serpentinite protrusions in the oceanic crust, Earth Planet. Sci. Lett, vol.32, pp.107-113, 1976. ,
Mantle peridotites from continental riffs to ocean basins to subduction zones, Earth Planet. Sci. Lett, vol.91, pp.297-311, 1989. ,
Some new measurements of linear compressibility of rocks, J. Geophys. Res, vol.70, pp.5669-5678, 1965. ,
Volume changes during fracture and frictional sliding: A review, Pure Appl. Geophys, vol.116, pp.603-614, 1978. ,
Limits on lithospheric stress imposed by laboratory experiments, J. Geophys. Res, vol.85, pp.6248-6252, 1980. ,
Dilatancy in the fracture of crystalline rocks, J. Geophys. Res, vol.71, pp.3939-3953, 1966. ,
On the relationship between deformation and metamorphism, with special reference to the behavior of basic rocks, Kinematics, Textures and Deformation, vol.4, pp.138-179, 1985. ,
Serpentinized peridotites and gabbros in the Mid-Atlantic Ridge axial valley at 15ø37'N and 16ø522q, Earth Planet. Sci. Lett, vol.116, pp.87-106, 1978. ,
Thin crust, ultramafic exposures, and rugged faulting patterns at the Mid-Atlantic Ridge (22ø-24øN), Geology, vol.23, pp.49-52, 1995. ,
The stability of lizardite, Can. Mineral, vol.17, pp.757-769, 1979. ,
Focal depths of intracontinental and intraplate earthquakes and their implications for the thermal str?cture and mechanical properties of the lithosphere, J. Geophys. Res, vol.88, pp.4183-4214, 1983. ,
Petrological and geophysical nature of serpentinites, Bull. Geol. Soc. Am, vol.82, pp.879-918, 1971. ,
Oceanic versus emplacement age serpentinization in the Josephine ophiolite: Implications for the nature of the Moho at intermediate and slow spreading ridges, J. Geophys. Res, vol.100, pp.245-267, 1995. ,
An Introduction to the RockForming Minerals, vol.528, 1966. ,
Implications of the mechanical and frictional behavior of serpentinite to seismogenic faulting, J. Geophys. Res, vol.86, pp.771-781, 1981. ,
Abyssal peridotites, very slow spreading ridges and ocean ridge magmatism, Magrnatism in the Ocean Basins, vol.42, pp.71-105, 1989. ,
The brittle-ductile transition in rocks: Recent experimental and theoretical progress, The brittleductile, vol.17, pp.1-20, 1979. ,
Micromechanics of the brittle to plastic transition in Carrara marble, J. Geophys. Res, vol.94, pp.4129-4145, 1989. ,
A view of the lower crustal component of hydrothermal systems at the mid-Atlantic ridge, J. Geophys. Res, vol.98, pp.597-616, 1993. ,
Josephine peridotite tectonites: A record of upper mantle plastic flow, Comell Univ, 1987. ,
History of ocean basins, Petrological Studies: a Volume in Honor ofA. F. Buddington, pp.599-620, 1962. ,
The effects of pressure and porosity on the micromechanics of the brittle-ductile transition in quartzite, Geophys. Res, vol.94, pp.825-842, 1989. ,
The brittle-plastic transition in experimentally deformed quartz, 1. Geophys. Res, vol.99, pp.11731-11747, 1994. ,
Structures in natural serpentinite gouges, J. Struct. Geol, vol.16, pp.1205-1215, 1994. ,
Hydrothermal serpentinization of peridotite within the oceanic crust: Experimental investigations of mineralogy and major element chemistry, Geochirn. Cosrnochirn. Acta, vol.50, pp.1357-1378, 1986. ,
Along-axis variations in seafloor spreading in the MARK Area, Nature, vol.328, pp.681-685, 1987. ,
Strength of the lithosphere: Constraints imposed by laboratory experiments, J. Geophys. Res, vol.100, pp.587-604, 1995. ,
Mechanisms of lithospheric extension at mid-ocean ridges, Geophys. J, vol.96, pp.1-22, 1989. ,
Evidence from gravity data for focused magmatic accretion along the Mid-Atlantic Ridge, Nature, vol.344, pp.627-632, 1990. ,
Dilatancy in hydraulically isolated faults and the suppression of instability, Geophys. Res. Lett, vol.21, pp.2353-2356, 1994. ,
Observations of quasistatic fault growth from acoustic emissions, Fault Mechanics and Transport Properties of Rocks, pp.3-31, 1992. ,
Serpentinite textures in Anglesey, Geol. Soc. Am. Bull, vol.89, pp.972-980, 1978. ,
Lithospheric stretching and hydrothermal processes in oceanic gabbros from slow spreading ridges, Ophiolite Genesis and Evolution of the Oceanic Lithosphere, pp.293-312, 1992. ,
An experimental study on the serpentinization of ironbearing olivines, Can. Mineral, vol.14, pp.462-478, 1976. ,
Strength of serpentinite gouges to 200øC, Fall Meet. Suppl, vol.76, issue.46, 1995. ,
The effect of decomposition of hydrous minerals on the mechanical properties of rocks at high pressures and temperatures, Tectonophysics, vol.31, pp.207-258, 1976. ,
The paradox of the axial profile: Isostatic compensation along the axis of the Mid-Atlantic Ridge?, J. Geophys. Res, vol.98, pp.891-908, 1993. ,
Microstructure of serpentine mylonites from the Josephine ophiolite and serpentinization in retrogressive shear zones, Geol. Soc. Am. Bull, vol.101, pp.673-682, 1989. ,
Serpentinites: Records of Tectonic and Petrological History, Oxford Monogr. Geol. Geophys, issue.34, 1996. ,
The stability of lizardite and chrysotile, Can. Mineral, vol.27, pp.483-493, 1989. ,
Experimental Rock Deformation: The Brittle Field, vol.254, 1978. ,
Experimental deformation of serpentinite and its tectonic implications, J. Geophys. Res, vol.70, pp.3965-3985, 1965. ,
Microstructural evidence of strain localization and distributed strain in serpentinite friction experiments, Fall Meet. Suppl, vol.76, issue.46, 1995. ,
The frictional behavior of lizardite and antigorite serpentinites: Experiments, constitutive models, and implications for natural faults, Pure Appl. Geophys, vol.143, pp.318-358, 1994. ,
Influence of strain rate on dilatancy and strength of Oshima granite under uniaxial compression, J. Geophys. Res, vol.86, pp.9299-9311, 1981. ,
Dilatancy, compaction, and slip instability of a fluid-infiltrated fault, J. Geophys. Res, vol.100, pp.155-177, 1992. ,
Two types of brittle fracture of silicate rocks under confining pressures and their implications in the Earth's crust, Tectonophysics, vol.175, pp.221-235, 1990. ,
Creep, compaction and the weak theology of major faults, Nature, vol.359, pp.687-692, 1992. ,
Crustal thickness on the Mid-Atlantic ridge: Bull's eye gravity anomalies and focused accretion, Science, vol.262, pp.726-729, 1993. ,
A geological model for the structure of ridge segments in slow spreading ocean crust, J. Geophys. Res, vol.99, pp.7-11, 1994. ,
Experimental deformation of dry Westerly granite, J. Geophys. Res, vol.82, pp.5705-5718, 1977. ,
The brittle-ductile transition in feldspar aggregates: An experimental study, Fault Mechanics and Transport Properties of Rock, pp.89-117, 1992. ,
Serpentine stability to mantle depths and subduction-related magmatism, Science, vol.268, pp.858-861, 1995. ,
, Relationship between microstructures and metamorphic assemblages, vol.39, pp.439-452, 1977.
Free software helps map and display data, Eos Trans. AGU, vol.72, issue.41, pp.445-446, 1991. ,
Serpentine minerals: Structures and petrology, Hydrous Phyllosilicates (exclusive of micas, vol.19, pp.91-167, 1988. ,
Serpentine textures and serpentinization, Can. Mineral, vol.15, pp.459-488, 1977. ,
An idealized model for serpentine textures after olivine, Can. Mineral, vol.15, pp.446-458, 1977. ,
Micromechanics of faulting in Westerly granite, Int. J. Rock Mech. Min. Sci, vol.19, pp.49-64, 1982. ,
Mechanical compaction and the brittle-ductile transition in porous sandstones, Deformation Mechanisms, Rheology and Tectonics, vol.54, pp.111-122, 1990. ,
Micromechanics of pressureinduced grain crushing in porous rocks, J. Geophys. Res, vol.95, pp.345-352, 1990. ,
,
, Rm 54-718, Cambridge, MA 02139. (email: brievans?mit.edu) G. Hirth, Department of Geology and Geophysics, 1996.