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Economic Geology; April 1961; v. 56; no. 2; p. 442-444
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The constitution of davidite [discussion]

J. D. Hayton

Reply to a paper by J.D. Hayton (GeoScience Abstracts 2-3024). In addition to showing a peculiar and diagnostic lanthanon distribution, davidites are chemically characterized by 1) a relatively high Sr/Ca ratio combined with a low alkaline earth content, 2) a relatively high U/Th ratio combined with a low ThO 2 content.

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