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G-Cubed: Geochemistry, Geophysics, Geosystems; an electronic journal of the Earth sciences

 

Keywords

  • mantle convection
  • plate tectonics

Index Terms

  • Geodesy and Gravity: Ocean/Earth/atmosphere/hydrosphere/cryosphere interactions
  • Tectonophysics: Planetary tectonics
  • Tectonophysics: Dynamics of lithosphere and mantle: general
Abstract
Cited By (9)
 

Abstract

Mantle convection with reversing mobile plates: A benchmark study

Donald E. Koglin Jr.

Department of Earth and Atmospheric Sciences, Purdue University, 550 Stadium Mall Drive, West Lafayette, Indiana, 47907-2051, USA

Sanaz R. Ghias

Department of Earth and Space Science and Engineering, York University, 117 Petrie Science and Engineering Building, Toronto, Ontario, M3J 1P3 Canada

Scott D. King

Department of Earth and Atmospheric Sciences, Purdue University, 550 Stadium Mall Drive, West Lafayette, Indiana, 47907-2051, USA

Gary T. Jarvis

Department of Earth and Space Science and Engineering, York University, 117 Petrie Science and Engineering Building, Toronto, Ontario, M3J 1P3 Canada

Julian P. Lowman

School of Earth Sciences, University of Leeds, Leeds, West Yorkshire, LS2 9JT, UK

Recent investigations of mantle convection with mobile plates have documented a mode of convection with periodic and/or aperiodic plate reversals (2-D) or reorganizations (3-D). We show that it is possible to calibrate plate formulations so that three different modeling methods reproduce the global flow diagnostics to within 3%. In 2-D calculations, plate reversals are independent of the method of plate generation once the calculations are tuned to reproduce the same physical characteristics (e.g., Nusselt number and plate velocity). The periods of oscillation of the flow reversals from three different plate methods agree to within 4%.

Received 17 January 2005; accepted 13 July 2005; published 7 September 2005.

Citation: Koglin, D. E., Jr., S. R. Ghias, S. D. King, G. T. Jarvis, and J. P. Lowman (2005), Mantle convection with reversing mobile plates: A benchmark study, Geochem. Geophys. Geosyst., 6, Q09003, doi:10.1029/2005GC000924.

Cited By

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