Some Speculations on the Nature of High-Angle Grain Boundaries in Quartz Rocks

  1. B.E. Hobbs and
  2. H.C. Heard
  1. A. C. McLaren

Published Online: 18 MAR 2013

DOI: 10.1029/GM036p0233

Mineral and Rock Deformation: Laboratory Studies: The Paterson Volume

Mineral and Rock Deformation: Laboratory Studies: The Paterson Volume

How to Cite

McLaren, A. C. (1986) Some Speculations on the Nature of High-Angle Grain Boundaries in Quartz Rocks, in Mineral and Rock Deformation: Laboratory Studies: The Paterson Volume (eds B.E. Hobbs and H.C. Heard), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM036p0233

Author Information

  1. Department of Physics, Monash University, Clayton, Victoria, Australia 3168

Publication History

  1. Published Online: 18 MAR 2013
  2. Published Print: 1 JAN 1986

ISBN Information

Print ISBN: 9780875900629

Online ISBN: 9781118664353

SEARCH

Keywords:

  • Rocks—Testing—Addresses, essays, lectures;
  • Rock deformation—Addresses, essays, lectures

Summary

The essential features of the current models of the structure of high-angle grain boundaries in cubic metals are reviewed and applied to a number of the known (as well as some postulated) inclined-axis twins of quartz. It is shown that for these twins, coincidence site lattices (CSLs) exist and that the twin and composition planes are often parallel to the plane of highest density of coincidence sites. Models of boundaries are suggested. The evidence for the existence in quartz rocks of special grain boundaries based on these CSLs is discussed and directions for future research indicated.