| Abstract: | A previously unknown solid phase of H2O has been identified by its peculiar growth patterns, distinct pressure-temperature melting relations, and vibrational Raman spectra. Morphologies of ice crystals and their pressure-temperature melting relations were directly observed in a hydrothermal diamond-anvil cell for H2O bulk densities between 1203 and 1257 kilograms per cubic meter at temperatures between -10??and 50??C. Under these conditions, four different ice forms were observed to melt: two stable phases, ice V and ice VI, and two metastable phases, ice IV and the new ice phase. The Raman spectra and crystal morphology are consistent with a disordered anisotropic structure with some similarities to ice VI. |
| Genre: | Article |
| ProdID: | 70020775 |
| Citation Author: | Chou, I. -M.; Blank, J. G.; Goncharov, A. F.; Mao, H. -K.; Hemley, R. J. |
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| Citation End Page: | 812 |
| Citation Issue: | 5378 |
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| Citation Language: | English |
| Citation Larger Work Title: | Science |
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| Citation Number Of Pages: | 4 |
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| Citation Search Results Text: | In situ observations of a high-pressure phase of H2O ice; 1998; Article; Journal; Science; Chou, I. -M.; Blank, J. G.; Goncharov, A. F.; Mao, H. -K.; Hemley, R. J. |
| Citation Start Page: | 809 |
| Citation Volume: | 281 |
| Citation Year: | 1998 |
| Type: | citation/reference |
| Text: | In situ observations of a high-pressure phase of H2O ice; 1998; Article; Journal; Science; Chou, I. -M.; Blank, J. G.; Goncharov, A. F.; Mao, H. -K.; Hemley, R. J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1126/science.281.5378.809 |
| Date Other: | Thu, 1 Jan 1998 00:00 -0600 |
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