| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4699999 | Chemical Geology | 2010 | 8 Pages |
Abstract
Compilations of experimental data allow the clinopyroxene Fe = Mg exchange equilibrium constant (Kd = (XFe/XMg)Clinopyroxene / (XFe/XMg)Melt) to be parameterized. Values of Kd increase with increasing pressure, temperature, Log fO2, melt CaO, NBO/TO, LnMgO, MgO#; and with decreasing melt SiO2, and Na2O + K2O. Multiple regression analysis yields improved fits, including some based solely on mineral compositional data. These parameterizations allow improved petrogenetic hypothesis testing for clinopyroxene-bearing assemblages.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geochemistry and Petrology
Authors
Jean H. Bédard,