SOLUBILITY AND SOLUTION MECHANISM OF H2O IN ALKALI SILICATE MELTS AND GLASSES AT HIGH PRESSURE AND TEMPERATURE
- DSpace Home
- →
- Геология России
- →
- ELibrary
- →
- View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.
dc.contributor.author | Mysen B.O. | |
dc.contributor.author | Cody G.D. | |
dc.date.accessioned | 2022-03-19T11:05:20Z | |
dc.date.available | 2022-03-19T11:05:20Z | |
dc.date.issued | 2004 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=12090390 | |
dc.identifier.citation | Geochimica et Cosmochimica Acta, 2004, 68, 24, 5113-5126 | |
dc.identifier.issn | 0016-7037 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/36425 | |
dc.description.abstract | The solubility behavior of H2O in melts in the system Na2O-SiO2-H2O was determined by locating the univariant phase boundary, melt = melt + vapor in the 0.8–2 GPa and 1000°–1300°C pressure and temperature range, respectively. The NBO/Si-range of the melts (0.25–1) was chosen to cover that of most natural magmatic liquids. The H2O solubility in melts in the system Na2O-SiO2-H2O (XH2O) ranges between 18 and 45 mol% (O = 1) with (∂XH2O/∂P)T∼14–18 mol% H2O/GPa. The (∂XH2O/∂P)T is negatively correlated with NBO/Si (= Na/Si) of the melt. The (∂XH2O/∂T)P is in the −0.03 to +0.05 mol% H2O/°C range, and is negatively correlated with NBO/Si. The [∂XH2O/∂(NBO/Si)]P,T is in the −3 to −8 mol% H2O/(NBO/Si) range. Melts with NBO/Si similar to basaltic liquids (∼0.6-∼1.0) show (∂XH2O/∂T)P<0, whereas more polymerized melts exhibit (∂XH2O/∂T)P>0. Complete miscibility between hydrous melt and aqueous fluid occurs in the 0.8–2 GPa pressure range for melts with NBO/Si ≤0.5 at T >1100°C. Miscibility occurs at lower pressure the more polymerized the melt. | |
dc.title | SOLUBILITY AND SOLUTION MECHANISM OF H2O IN ALKALI SILICATE MELTS AND GLASSES AT HIGH PRESSURE AND TEMPERATURE | |
dc.type | Статья |
Files in this item
This item appears in the following Collection(s)
-
ELibrary
Метаданные публикаций с сайта https://www.elibrary.ru