A rheologically layered three-dimensional model of the San Andreas Fault in central and southern California

C. A. Williams, R. M. Richardson

Research output: Contribution to journalArticle

81 Scopus citations

Abstract

Three-dimensional kinematic finite element models of the San Andreas Fault in central and southern California have been used to estimate the effects of rheological parameters and fault slip distribution on the horizontal and vertical deformation in the vicinity of the fault. The models include the effects of vertically layered power law viscoelastic rheology, and isostatic forces are considered in calculations of vertical uplift. Several different rheological layering schemes are used, using laboratory results on rock rheology to define the properties of the various layers. Among our San Andreas Fault models the one most consistent with current strain rate data includes aseismic slip between 20 and 40 km (H=40km) and uses assumed rheological properties from the surface to 100km depth consistent with laboratory results for wet rock samples. -from Authors

Original languageEnglish (US)
Pages (from-to)16,597-16,623
JournalJournal of geophysical research
Volume96
Issue numberB10
DOIs
StatePublished - 1991

ASJC Scopus subject areas

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

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