In-situ measurement of the strength of deforming subglacial till
نویسندگان
چکیده
منابع مشابه
Creep closure of channels in deforming subglacial till
We examine theoretically the creep closure of subglacial tunnels cut into basal till, generalizing Nye's classical analysis of tunnel closure in glacier ice to rheologies in which the creep rate depends on effective pressure (the difference between total pressure and pore-water pressure). The solutions depend critically on a dimensionless permeability parameter. For the appealingly simple Boult...
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15 صفحه اولSubglacial till formation: Microscale processes within the subglacial shear zone
This was a study of subglacial deformation till genesis from a modern temperate glacier, at Sk alafellsj€ okull, Iceland. Detailed microscale properties of till samples (from Scanning Electron Microscope [SEM] and thin section analysis) were examined from a glacial site with in situ subglacial process monitoring and an exposed subglacial surface in the foreland. Two lithofacies were examined, a...
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ژورنال
عنوان ژورنال: Journal of Glaciology
سال: 1994
ISSN: 0022-1430,1727-5652
DOI: 10.3189/s0022143000012375