Intratransform Origins of Mid-ocean Ridge Microplates
Digital Object Identifier (DOI)
We present evidence that the Easter and Juan Fernandez microplates originated by rift propagation from within transform fault zones at locations far from ridge-transform intersections. An intratransform spreading center may have served as the focal point for each new propagation. Both events appear coincident with a circum-Pacific plate reorganization dated at 5.6 Ma, which may have been related to a change in Pacific absolute plate motion and a counterclockwise rotation of Pacific-Nazca relative plate motion. This intratransform model may be applicable to the generation of other microplates and may thus serve as a general model for microplate origins.
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Citation / Publisher Attribution
Geology, v. 22, issue 11, p. 987-990
Scholar Commons Citation
Bird, Robert T. and Naar, David F., "Intratransform Origins of Mid-ocean Ridge Microplates" (1994). Marine Science Faculty Publications. 2253.