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Virginia Tech

A study of the mean-square displacement amplitudes of T and O atoms in framework silicates and aluminosilicates: evidence for rigid TO bonds, order, disorder, twinning and stacking faults in crystals

Abstract

dc:description.abstract

The mean-square displacement amplitudes (MSDA) of the tetrahedral cations Si and Al are compared to the MSDA of their coordinated O atoms in framework silica polymorphs and aluminosilicate structures. Criteria are established which indicate order, structural disorder or substitutional disorder in a framework crystal.

Degree

thesis:*
Name thesis:degree_name
Master of Science
Level thesis:degree_level
masters
Discipline thesis:degree_discipline
Geological Sciences
Department dc:contributor.department
Geological Sciences
Grantor dc:publisher
Virginia Tech
Year dc:date.issued
1989

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Downs, Robert T.
Chairs dc:contributor.committeechair
  • Gibbs, Gerald V.
  • Boisen, Monte B. Jr.
Committee members dc:contributor.committeemember
  • Ribbe, Paul H.
  • Schug, John C.
  • Davis, Mark E.

Rights

dc:rights
Statement dc:rights
  • In Copyright
Language dc:language.iso
en

Identifiers

dc:identifier.*
Dc Identifier Other
etd-11212012-040124
OAI identifier oai:identifier
oai:vtechworks.lib.vt.edu:10919/45947

Chain of custody

source
Harvested from
Virginia Tech
Base URL
vtechworks.lib.vt.edu/oai/request
Last updated
2026-07-22
Source record
OAI-PMH GetRecord
related terms
citation

Downs, Robert T.. A study of the mean-square displacement amplitudes of T and O atoms in framework silicates and aluminosilicates: evidence for rigid TO bonds, order, disorder, twinning and stacking faults in crystals. masters thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/45947