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Experimental investigation of F, Cl, and OH partitioning between apatite and Fe-rich basaltic melt at 1.0–1.2 GPa and 950–1000 °C by Francis M. McCubbin; Kathleen E. Vander Kaaden; Romain Tartèse; Jeremy W. Boyce; Sami Mikhail; Eric S. Whitson; Aaron S. Bell; Mahesh Anand; Ian A. Franchi; Jianhua Wang; Erik H. Hauri is a Earth and Planetary Sciences article available to read on EtoBox.
What is Experimental investigation of F, Cl, and OH partitioning between apatite and Fe-rich basaltic melt at 1.0–1.2 GPa and 950–1000 °C about?
Apatite-melt partitioning experiments were conducted in a piston-cylinder press at 1.0-1.2 GPa and 950-1000 °C using an Fe-rich basaltic starting composition and an oxygen fugacity within the range of DIW-1 to DIW+2. Each experiment had a unique F:Cl:OH ratio to assess the partitioning as a function of the volatile content of apatite and melt. The quenched melt and apatite were analyzed by electron probe microanalysis and secondary ion mass spectrometry techniques. The mineral-melt partition coefficients (D values) determined in this study are as follows: D F Ap-Melt = 4.4-19, D Cl Ap-Melt = 1.1-5, D OH Ap-Melt = 0.07-0.24. This large range in values indicates that a linear relationship does not exist between the concentrations of F, Cl, or OH in apatite and F, Cl, or OH in melt, respectively. This non-Nernstian behavior is a direct consequence of F, Cl, and OH being essential structural constituents in apatite and minor to trace components in the melt. Therefore mineral-melt D values for F, Cl, and OH in apatite should not be used to directly determine the volatile abundances of coexisting silicate melts. However, the apatite-melt D values for F, Cl, and OH are necessarily interde
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- Author
- Francis M. McCubbin; Kathleen E. Vander Kaaden; Romain Tartèse; Jeremy W. Boyce; Sami Mikhail; Eric S. Whitson; Aaron S. Bell; Mahesh Anand; Ian A. Franchi; Jianhua Wang; Erik H. Hauri
- Publisher
- Mineralogical Society of America
- Published
- 2015
- Language
- EN
- Field
- Earth and Planetary Sciences (Physical Sciences)