Crossref journal-article
International Glaciological Society
Journal of Glaciology (1782)
Abstract

AbstractThe geometry of the vein system in ice has been investigated using photographs of enlarged veins in ice samples that were grown in the laboratory. The veins, which are non-uniform, act as tiny triangular-shaped, water-filled prisms that refract the light passing through them.The three vein widths in the cross-section of a vein can be deduced from two photographs taken from different directions. The dihedral angle along a given vein edge can be observed directly by viewing it at a node, where four veins meet, from a particular direction. The dihedral angles range from 25° ± 1° to 105° ± 1°. It is shown that the vein cross-section can be constructed, given the three widths of a vein and one of the dihedral angles, providing that the radius of curvature around the vein wallsrv is a constant. This assumption can be checked if the values of at least two of the dihedral angles associated with the vein cross-section are known. Ifrv is a constant, then the solid-liquid interfacial energy ϒsl must be isotropic for the veins in question and any deviations from uniform equilibrium geometry must derive primarily from anisotropy in the grain-boundary energy ϒss. The cross-sections of three veins that meet in a particular node are constructed. The assumption of isotropic ϒsl is found to hold for this node.

Bibliography

Mader, H. M. (1992). Observations of the water-vein system in polycrystalline ice. Journal of Glaciology, 38(130), 333–347.

Authors 1
  1. Heidy M. Mader (first)
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Dates
Type When
Created 7 years, 11 months ago (Sept. 19, 2017, 8:45 a.m.)
Deposited 6 years, 3 months ago (May 17, 2019, 3:12 p.m.)
Indexed 1 month, 4 weeks ago (July 2, 2025, 3:30 p.m.)
Issued 33 years, 7 months ago (Jan. 1, 1992)
Published 33 years, 7 months ago (Jan. 1, 1992)
Published Online 8 years, 7 months ago (Jan. 20, 2017)
Published Print 33 years, 7 months ago (Jan. 1, 1992)
Funders 0

None

@article{Mader_1992, title={Observations of the water-vein system in polycrystalline ice}, volume={38}, ISSN={1727-5652}, url={http://dx.doi.org/10.3189/s0022143000002227}, DOI={10.3189/s0022143000002227}, number={130}, journal={Journal of Glaciology}, publisher={International Glaciological Society}, author={Mader, Heidy M.}, year={1992}, pages={333–347} }