Flow, Stress and Temperature in Island Arc Areas

L. Bodri, B. Bodri

Research output: Contribution to journalArticle

Abstract

An approach is developed whereby island arc volcanism may be explained by frictional heating of regions located near the iithosphere-asthenosphere boundaries. This frictional heating is due to the flow driven by the subducting slab. Numerical modeiling of flow, stress and temperature in two wedge-shaped regions located on the two sides of the downgoing oceanic piate is carried out. An important feature of this work is the application of nonlinear rheology. The asthenosphere is considered as a viscous fiuid and the lithospheric piates are taken as rigid bodies. The calculation is twodimensional and time dependent. Stresses arising near the base of the landward piate certainly attain values of lkbar and the corresponding temperatures reach values high enough for melting the material of the lithosphere and of the upper asthenosphere.

Original languageEnglish
Pages (from-to)95-105
Number of pages11
JournalGeophysical & Astrophysical Fluid Dynamics
Volume13
Issue number1
DOIs
Publication statusPublished - Jan 1979

ASJC Scopus subject areas

  • Computational Mechanics
  • Astronomy and Astrophysics
  • Geophysics
  • Mechanics of Materials
  • Geochemistry and Petrology

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