![]() Geophysical Journal International, 96(1): 1–22, doi: Mechanisms of lithospheric extension at mid-ocean ridges. ![]() Oceanic broad multifault transform plate boundaries. On the determination of a global strain rate model. Marine Geophysical Research, 6(1): 51–98, doi: Tectonics of ridge-transform intersections at the Kane fracture zone. ![]() Spreading rate dependence of gravity anomalies along oceanic transform faults. Segmentation of transform systems on the East Pacific Rise: Implications for earthquake processes at fast-slipping oceanic transform faults. Evidence from gravity anomalies for interactions of the Marion and Bouvet hotspots with the Southwest Indian Ridge: Effects of transform offsets. A tectonic model for ridge-transform-ridge plate boundaries: Implications for the structure of oceanic lithosphere. Marine Geophysical Researches, 11(4): 263–299, doi: įox P J, Gallo D G. Structure and topography of the Siqueiros transform fault system: Evidence for the development of intra-transform spreading centers. Marine Geophysical Researches, 14(1): 25–45, doi: įornari D J, Gallo D G, Edwards M H, et al. Morphology of the Blanco transform fault zone-NE Pacific: implications for its tectonic evolution. Physics of the Earth and Planetary Interiors, 200–201: 1–9, doi: Įmbley R W, Wilson D S. The global CMT project 2004–2010: Centroid-moment tensors for 13, 017 earthquakes. Physics of the Earth and Planetary Interiors, 25(4): 297–356, doi: (81)90046-7Įkström G, Nettles M, Dziewoński A M. An ultraslow-spreading class of ocean ridge. Geochemistry, Geophysics, Geosystems, 9(7): Q07001, doi: ĭick H, Lin J, Schouten H. Revised pacific-Antarctic plate motions and geophysics of the Menard fracture zone. Journal of Geophysical Research: Solid Earth, 95(B11): 17571–17581, doi: Ĭroon M B, Cande S C, Stock J M. Rift valley/no rift valley transition at mid-ocean ridges. Journal of Geophysical Research: Solid Earth, 99(B11): 21779–21802, doi: Ĭhen Y S, Morgan W J. Transform migration and vertical tectonics at the Romanche fracture zone, equatorial Atlantic. Journal of Geophysical Research: Solid Earth, 109(B12): B12302, doi: īonatti E, Ligi M, Gasperini L, et al. Earthquake scaling relations for mid-ocean ridge transform faults. Washington, DC: Geodynamics Series, 203–218īoettcher M S, Jordan T H. Plate tectonics and earthquake potential of spreading ridges and oceanic transform faults. Geophysical Research Letters, 29(24): 2207, doi: īird P, Kagan Y Y, Jackson D D. Evidence for weak oceanic transform faults. Mechanism for generating the anomalous uplift of oceanic core complexes: Atlantis Bank, Southwest Indian Ridge. Individual transform faults also exhibit significant anomalies owing to the complex local tectonic and magmatic processes.īaines A G, Cheadle M J, Dick H J B, et al. (5) The maximum magnitude of the transform earthquakes increases with age offset owing to an increase in the seismogenic area. (4) Statistically, the average transform valley is wider at a transform system of larger age offset, reflecting thicker deforming plates flanking the transform fault. In contrast, the nodal high, is most prominent in the fast, intermediate, and hotspot-influenced systems, where robust axial volcanic ridges extend toward the ridge-transform intersection. (3) The nodal basin at a ridge-transform intersection is deeper and dominant at the ultraslow and slow systems, possibly reflecting a lower magma supply and stronger viscous resistance to mantle upwelling near a colder transform wall. However, the average depth difference between the transform valley and adjacent ridges is relatively constant from the fast to slow systems. (2) The average depth of both the transform valley and adjacent ridges are smaller in the fast compared to the slow systems, reflecting possibly density anomalies associated with warmer mantle at the fast systems and rifting at the slow ridges. (1) The average age offset of both the full transform and transform sub-segments decrease with increasing spreading rate. We quantified the systematic variations in global transform fault morphology, revealing a first-order dependence on the spreading rate.
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