On the role of slab pull in the Cenozoic motion of the Pacific plate

Details On the role of slab pull in the Cenozoic motion of the Pacific plate On the role of slab pull in the Cenozoic motion of the Pacific plate

Feb 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012georl..3903305f&link_type=abstract

Geophysical Research Letters, Volume 39, Issue 3, CiteID L03305

Physics

Geophysics

Marine Geology And Geophysics: Subduction Zone Processes (1031, 3613, 8170, 8413), Tectonophysics: Plate Boundary: General (3040), Tectonophysics: Plate Motions: Past (3040)

Scientific paper

We analyze the role of slab pull acting on the Pacific plate during its early Tertiary change in motion. Slab pull forces are estimated by integrating the negative buoyancy of a 700 km long slab along a revised subduction boundary model adopting the Müller et al. (2008) seafloor age reconstructions. Our results indicate that torques predicted from a simple slab pull model match the Pacific plate Euler vectors during the Tertiary fairly well. The change of the Pacific motion at ˜50-40 Ma appears to be driven by the onset of the Izu-Bonin-Mariana system and, soon afterwards, by the Tonga-Kermadec subduction zones.

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