RHEOLOGY OF BUBBLE-BEARING MAGMAS
- 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 | Lejeune A.M. | |
dc.contributor.author | Bottinga Y. | |
dc.contributor.author | Trull T.W. | |
dc.contributor.author | Richet P. | |
dc.date.accessioned | 2021-01-09T01:52:57Z | |
dc.date.available | 2021-01-09T01:52:57Z | |
dc.date.issued | 1999 | |
dc.identifier | https://elibrary.ru/item.asp?id=104593 | |
dc.identifier.citation | Earth and Planetary Science Letters, 1999, , 1, 71-84 | |
dc.identifier.issn | 0012-821X | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/22370 | |
dc.description.abstract | The physical effects of air or argon bubbles on the rheology of a calcium aluminosilicate melt have been measured at temperatures ranging from 830° to 960°C, at 1 bar pressure. The melt composition is SiO2:64, Al2O3:23, and CaO:13 (wt%), while bubble volume fractions are: 0, 0.06, 0.13, 0.32, 0.41 and 0.47. Measured Newtonian viscosities range from 1010 to 1014 dPa s. Melts with bubble fractions of 0.06 and 0.13 show with increasing temperature (T) an increasing relative viscosity for T < 850°C. However at T > 850°C, for all bubble fractions the viscosity decreases markedly with temperature. The observed maximum decrease of the relative viscosity is 75% for a bubble fraction of 0.47 at 907°C. At all bubble fractions the viscosity is independent of the applied stress, which ranged from 11 to 677 bars. No clear indications were observed of non-Newtonian rheological behavior. Under our experimental conditions the relative viscosity of the two phase liquid depends primarily on the bubble fraction. Physical and volcanological implications of these measurements are discussed. | |
dc.subject | ALUMINOSILICATES | |
dc.subject | MELTS | |
dc.subject | MAGMAS | |
dc.subject | RHEOLOGY | |
dc.subject | VOLCANOLOGY | |
dc.subject | EXSOLUTION | |
dc.title | RHEOLOGY OF BUBBLE-BEARING MAGMAS | |
dc.type | Статья |
Files in this item
Files | Size | Format | View |
---|---|---|---|
There are no files associated with this item. |
This item appears in the following Collection(s)
-
ELibrary
Метаданные публикаций с сайта https://www.elibrary.ru