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Melt thermodynamics and divalent element partitioning between anorthite and CMAS liquids

Miller, S. A. and Asimow, Paul D. and Burnett, D. S. (2005) Melt thermodynamics and divalent element partitioning between anorthite and CMAS liquids. Geochimica et Cosmochimica Acta, 69 (10). A822. ISSN 0016-7037.

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Quantifying the effect of melt composition on trace element partitioning in natural systems has been hampered by correlated variations in mineral chemistry, temperature, and pressure. We have isolated the influence of melt composition on divalent element (Mg, Ca, Sr, Ba) partitioning between stoichiometric anorthite and a range of synthetic melts. Data were obtained from electron microprobe analysis of anorthite rims from dynamic crystallization experiments. Melt compositions contain near constant SiO_2, CaO/Al_2O_3 ranging from 0.8-1.6, and MgO from 1-15 wt. %. Holding X_(mineral), T, and P constant, we observe partitioning behavior that varies systematically with melt chemistry.

Item Type:Article
Related URLs:
URLURL TypeDescription
Miller, S. A.0000-0002-3181-1426
Asimow, Paul D.0000-0001-6025-8925
Burnett, D. S.0000-0001-9521-8675
Additional Information:© 2005 Pergamon-Elsevier Science Ltd.
Issue or Number:10
Record Number:CaltechAUTHORS:20120830-152746549
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:33725
Deposited By: Tony Diaz
Deposited On:30 Aug 2012 22:32
Last Modified:09 Mar 2020 13:19

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