HIGH-TEMPERATURE LIMITS ON VISCOSITY OF NON-ARRHENIAN SILICATE MELTS
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dc.contributor.author | Russell J.K. | |
dc.contributor.author | Giordano D. | |
dc.contributor.author | Dingwell D.B. | |
dc.date.accessioned | 2021-11-26T07:42:35Z | |
dc.date.available | 2021-11-26T07:42:35Z | |
dc.date.issued | 2003 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=13938777 | |
dc.identifier.citation | American Mineralogist, 2003, 88, 8-9, 1390-1394 | |
dc.identifier.issn | 0003-004X | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/32444 | |
dc.description.abstract | The prediction of viscosity in silicate melts, over the range of conditions found in nature, remains one of the most challenging and elusive goals in Earth Sciences. We present a strategy for fitting non-Arrhenian models [e.g., Vogel-Tammann-Fulcher (VTF) or Adam-Gibbs (AG)] to viscosity data that can be employed toward a full multicomponent model for melt viscosity. Our postulate is that the high-T viscosities of silicate melts converge to a common value. The implications are twofold. First, the number of composition-dependent parameters is reduced by a third. Second, our optimization constrains the experimentally inaccessible, high-T properties of silicate melts. The high-T limits to melt viscosity are constrained by the VTF and AG models to between 10−4.3±0.74 and 10−3.2±0.66 Pa·s, respectively, and overlap in the interval 10−3.86 to 10−3.56 Pa·s. | |
dc.title | HIGH-TEMPERATURE LIMITS ON VISCOSITY OF NON-ARRHENIAN SILICATE MELTS | |
dc.type | Статья |
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