Jump to ContentJump to Main Navigation
Show Summary Details
More options …

American Mineralogist

Journal of Earth and Planetary Materials

Ed. by Baker, Don / Xu, Hongwu / Swainson, Ian


IMPACT FACTOR 2017: 2.645

CiteScore 2017: 2.31

SCImago Journal Rank (SJR) 2017: 1.440
Source Normalized Impact per Paper (SNIP) 2017: 1.059

Online
ISSN
1945-3027
See all formats and pricing
More options …
Volume 89, Issue 10

Issues

Displacement and strain fields around a [100] dislocation in olivine measured to sub-angstrom accuracy

Craig L. Johnson
  • Corresponding author
  • Department of Chemistry & Biochemistry, Arizona State University, Tempe, Arizona 85287-1604, U.S.A.
  • Email
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Martin J. Hÿtch
  • Centre dʼEtudes de Chimie Métallurgique, Centre National de Recherche ScientiÞ que (CNRS), 15 rue G. Urbain, 94407 Vitry-sur-Seine, France
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Peter R. Buseck
  • Department of Chemistry & Biochemistry, Arizona State University, Tempe, Arizona 85287-1604, U.S.A.
  • Department of Geological Sciences, Arizona State University, Tempe, Arizona 85287-1404, U.S.A.
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2015-03-28 | DOI: https://doi.org/10.2138/am-2004-1004

Abstract

We report the first measurement of deformation around a dislocation in olivine at the sub-nanometer scale. The displacement field around a [100] dislocation in olivine from San Carlos, Arizona, was measured using high-resolution transmission electron microscopy and geometric phase analysis. The results were compared with anisotropic elastic theory and are accurate to better than 0.09 Å. The displacements were used to calculate the strain tensor and rigid-body rotation. Together, this information provides a complete description of the local deformation of the crystal around the dislocation. These data could provide an empirical validation for both atomic-scale models of dislocations and mesoscale simulations of dislocation interactions. Details at both of these levels are necessary for a comprehensive forward modeling of mantle rheology.

About the article

Received: 2003-11-20

Accepted: 2004-04-24

Published Online: 2015-03-28

Published in Print: 2004-10-01


Citation Information: American Mineralogist, Volume 89, Issue 10, Pages 1374–1379, ISSN (Online) 1945-3027, ISSN (Print) 0003-004X, DOI: https://doi.org/10.2138/am-2004-1004.

Export Citation

© 2015 by Walter de Gruyter Berlin/Boston.

Comments (0)

Please log in or register to comment.
Log in