Invasion of ice through rigid anisotropic porous media

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DOIResolve DOI: http://doi.org/10.1029/2004JB003134
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TypeArticle
Journal titleJ. Geophys. Res.
Journal of Geophysical Research
Volume109
PagesB12205
Subjectanisotropic permeability; ice; invasion percolation
AbstractCrystallographic textures are presented of ice formed in situ by directional cooling of saturated porous rocks. The observations of texture demonstrate that pore invasion, and not repeated nucleation, dominates the freezing process in these rocks. This implies that microscopic advance of crystallographically coherent ice occurs through the pore network. The textures are governed by the permeability of the pore network and not by the direction of bulk heat flow. The anisotropy of permeability provides a mechanism for grain competition during ice growth, as crystals with fast growth directions aligned favorably to the maximum permeability are favored.
Publication date
AffiliationNational Research Council Canada; NRC Canadian Neutron Beam Centre
Peer reviewedNo
NPARC number12338574
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Record identifier18191e1c-9984-454b-beb3-62f1faa3dab6
Record created2009-09-10
Record modified2016-05-09
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