Published October 8, 1981 | Version v1
Journal article Metadata-only

Amorphous structure of metamict minerals observed by TEM

Creators

  • 1. Sandia National Labs., Albuquerque, NM (USA)
  • 2. New Mexico Univ., Albuquerque (USA). Dept. of Geology

Description

Results are presented of an examination of a wide range of metamict silicate and complex Nb-Ta-Ti oxide minerals using transmission electron microscopy which show that the metamict state in such minerals is amorphous to within the resolution capabilities of current electron microscope techniques (approximately 10 A). Void formation accompanies metamictization in the complex Nb-Ta-Ti oxides, but this does not occur in the silicates. (U.K.)

Additional details

Publishing Information

Journal Title
Nature (London)
Journal Volume
293
Journal Issue
5832
Series
Nature (London).
Journal Page Range
449-450
ISSN
0028-0836

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
13647573
Subject category
S58: GEOSCIENCES; S36: MATERIALS SCIENCE;
Descriptors DEI
AESCHYNITE; ALLANITE; ALPHA PARTICLES; AMORPHOUS STATE; ELECTRON MICROSCOPY; MICROSTRUCTURE; PHYSICAL RADIATION EFFECTS; RADIOLYSIS; SYNTHETIC ROCKS; TANTALUM OXIDES; THORITE; URANIUM ISOTOPES; VOIDS; YTTRIALITE
Descriptors DEC
ACTINIDE COMPOUNDS; CERIUM COMPOUNDS; CERIUM SILICATES; CHALCOGENIDES; CHARGED PARTICLES; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTIONS; CRYSTAL STRUCTURE; DECOMPOSITION; HELIUM IONS; IONS; MICROSCOPY; MINERALS; NIOBIUM COMPOUNDS; NIOBIUM OXIDES; OXIDES; OXYGEN COMPOUNDS; RADIATION EFFECTS; RADIOACTIVE MATERIALS; RADIOACTIVE MINERALS; RARE EARTH COMPOUNDS; ROCKS; SILICATES; SILICON COMPOUNDS; TANTALUM COMPOUNDS; THORIUM COMPOUNDS; THORIUM MINERALS; THORIUM OXIDES; THORIUM SILICATES; TITANIUM COMPOUNDS; TITANIUM OXIDES; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; YTTRIUM SILICATES