TRACE ELEMENT PARTITIONING IN PLAGIOCLASE FELDSPAR
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dc.contributor.author | Bedard J.H. | |
dc.date.accessioned | 2024-04-29T04:07:49Z | |
dc.date.available | 2024-04-29T04:07:49Z | |
dc.date.issued | 2006 | |
dc.identifier | https://elibrary.ru/item.asp?id=12091744 | |
dc.identifier.citation | Geochimica et Cosmochimica Acta, 2006, 70, 14, 3717-3742 | |
dc.identifier.issn | 0016-7037 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/43785 | |
dc.description.abstract | Compilation and interpretation of experimental and natural Nernst partition coefficient (plagioclase/meltD) data show that, with a few exceptions, increases in plagioclase/meltD correlate with decreasing anorthite-content of plagioclase. In contrast, increases of plagioclase/meltD for Ga, Sc, Cu, Zn, Zr, Hf and Ti, are better correlated against decreasing melt MgO or increasing melt SiO2 contents. plagioclase/meltD for Ti and the rare earth elements (REE) show little dependence on temperature, but increase as the melt water content increases. plagioclase/meltD for K and Sr are sensitive to pressure. Variations of D0 (the strain compensated partition coefficient), r0 (the size of the site into which REE substitute), and E (Young’s Modulus of this site) were parameterized against variations of melt SiO2, the An-content of plagioclase, and other combinations of variables, allowing plagioclase/meltDREE-Y to be calculated from a variety of input parameters. The interrelations of temperature, melt MgO and SiO2 content, and plagioclase anorthite-content for wet and dry systems were also parameterized to facilitate interpolation where such data are lacking. When combined, these semi-empirical parameterizations yield plagioclase/meltD results comparable to available experimental and natural data. Crown Copyright ? 2006. | |
dc.subject | EXPERIMENTAL MINERALOGY | |
dc.subject | PARTITIONING | |
dc.subject | PLAGIOCLASE | |
dc.subject | TRACE ELEMENT | |
dc.title | TRACE ELEMENT PARTITIONING IN PLAGIOCLASE FELDSPAR | |
dc.type | Статья | |
dc.identifier.doi | 10.1016/j.gca.2006.05.003 |
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