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Europium anomaly in plagioclase feldspar - Experimental results and semiquantitative model.The partition of europium between plagioclase feldspar and magmatic liquid is considered in terms of the distribution coefficients for divalent and trivalent europium. A model equation is derived giving the europium anomaly in plagioclase as a function of temperature and oxygen fugacity. The model explains europium anomalies in plagioclase synthesized under controlled laboratory conditions as well as the variations of the anomaly observed in natural terrestrial and extraterrestrial igneous rocks.
Document ID
19730048100
Document Type
Reprint (Version printed in journal)
Authors
Weill, D. F.
Drake, M. J.
(Oregon, University Eugene, Ore., United States)
Date Acquired
August 7, 2013
Publication Date
June 8, 1973
Publication Information
Publication: Science
Volume: 180
Subject Category
Chemistry
Accession Number
73A32902
Funding Number(s)
CONTRACT_GRANT: NGL-38-003-020
CONTRACT_GRANT: NGL-38-003-022
Distribution Limits
Public
Copyright
Other

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