Experimental study of radium partitioning between anorthite and melt at 1 atm
Description:
We present the first experimental radium mineral/melt partitioning data, specifically between anorthite and a CMAS melt at atmospheric pressure. Ion microprobe measurement of coexisting anorthite and glass phases produces a molar D{sub Ra} = 0.040 {+-} 0.006 and D{sub Ra}/D{sub Ba} = 0.23 {+-} 0.05 at 1400 C. Our results indicate that lattice strain partitioning models fit the divalent (Ca, Sr, Ba, Ra) partition coefficient data of this study well, supporting previous work on crustal melting an…
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Date:
March 8, 2007
Creator:
Miller, S.; Burnett, D.; Asimow, P.; Phinney, D. & Hutcheon, I.
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