| Abstract: | The aim of our research programme is to explore the rheological behavior of H//2O ices under conditions appropriate to the interiors of the icy satellites of the outer planets in order to give insight into their deformation. To this end, we have performed over 100 constant-strain-rate compression tests at pressures to 500 MPa and temperatures as low as 77 K. At P greater than 30 MPa, ice I//h fails by a shear instability producing faults in the maximum shear stress orientation and failure strength typically is independent of pressure. This unusual faulting behavior is thought to be connected with phase transformations localized in the shear zones. The steady-state strength follows rheological laws of the thermally-activated power-law type, with different flow law parameters depending on the range of test temperatures. The flow laws will be discussed with reference to the operating deformation mechanisms as deduced from optical-scale microstructures and comparison with other work. |
| Genre: | Conference Paper |
| ProdID: | 70015139 |
| Citation Author: | Kirby, S. H.; Durham, W. B.; Beeman, M. L.; Heard, H. C.; Daley, M. A. |
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| Citation End Page: | 232 |
| Citation Issue: | 3 |
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| Citation Language: | English |
| Citation Larger Work Title: | Journal de Physique (Paris), Colloque |
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| Citation Number Of Pages: | 6 |
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| Citation Search Results Text: | INELASTIC PROPERTIES OF ICE I//h AT LOW TEMPERATURES AND HIGH PRESSURES.; 1987; Conference Paper; Journal de Physique (Paris), Colloque; Kirby, S. H.; Durham, W. B.; Beeman, M. L.; Heard, H. C.; Daley, M. A. |
| Citation Start Page: | 227 |
| Citation Volume: | 48 |
| Citation Year: | 1987 |
| Type: | citation/reference |
| Text: | INELASTIC PROPERTIES OF ICE I//h AT LOW TEMPERATURES AND HIGH PRESSURES.; 1987; Conference Paper; Journal de Physique (Paris), Colloque; Kirby, S. H.; Durham, W. B.; Beeman, M. L.; Heard, H. C.; Daley, M. A. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Thu, 1 Jan 1987 00:00 -0600 |
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