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We need a graph of REE abundances from somewhere, showing the typical Eu anomalies of a range of different basalts. It's on my TODO list but I'm making a note here in case anyone else wants to try beating me to it :-) Jon (talk) 15:23, 15 July 2012 (UTC)
For instance: 
Or, perhaps, we can flog the image from this paper[1] since the MDPI open access licence allows it under CC-BY/4: http://www.mdpi.com/resources/resources-06-00040/article_deploy/html/images/resources-06-00040-g006.png
- ^ Claire L. McLeod 1, Mark. P. S. Krekeler (August 2017). "Sources of Extraterrestrial Rare Earth Elements: To the Moon and Beyond". Resources. 6 (3). MDPI. doi:10.3390/resources6030040. Retrieved 2018-03-09.
{{cite journal}}: CS1 maint: numeric names: authors list (link) CS1 maint: unflagged free DOI (link)