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https://hdl.handle.net/11681/11763| Title: | Effect of porosity on the hydrostatic compression of ice |
| Authors: | Gow, A. J. (Anthony Jack) Sheehy, William. |
| Keywords: | Antarctica Antarctic ice sheet Byrd Station, Antarctica Ice Ice sheets Ice compressibility Ice cores Hydrostatic compression test Porosity Bubbles EPOLAR |
| Publisher: | Cold Regions Research and Engineering Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Series/Report no.: | Special report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 234. |
| Description: | Special Report Abstract: A cathetometer was used in conjunction with a window-equipped pressure chamber to measure linear deformation in porous polycrystalline ice samples compressed hydrostatically at pressures of up to 0.31 kb. Tests show that a porosity as little as 1% can increase the compressibility of ice four- or five-fold. However, the compression is of a substantially nonelastic nature, since very little recovery (expansion) occurs during and following pressure release. Pore closure, which is virtually complete at the higher pressures, can be attributed to a combination of plastic and cataclastic deformation of ice in the walls of the pores. |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/11763 |
| Appears in Collections: | Special Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| SR-234.pdf | 3.18 MB | Adobe PDF |  View/Open |