Simple shear deformation experiment on iron rich olivine aggregates

Yong Hong Zhao, Xiao Fan Li, Mark E Zimmerman, David L Kohlstedt

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Simple shear creep deformation experiments were performed using high resolution gas media apparatus on fine-grained samples of(Mg0.5 ,Fe0.5)2SiO4 at a temperature of 1473 K and a confining pressure of 300 MPa. Differential stresses in the range of 64 to 153 MPa resulted in strain rates between 10-5̃ 10-3s -1. Three samples were deformed to the shear strain of 89% , 131% and 200% , respectively. From the micro-structural analysis, grain size distribution, lattice preferred orientation, the seismic anisotropy characteristics as well as their changes with the strain were investigated.

Original languageEnglish (US)
Pages (from-to)2687-2693
Number of pages7
JournalActa Petrologica Sinica
Volume25
Issue number10
StatePublished - Oct 2009

Keywords

  • Experimental study
  • Iron rich olivine aggregates
  • Lattice preferred orientation (LPO)
  • Seismic anisotropy
  • Simple shear deformation

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