Talk:Carbonatite
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[edit] Comment
Edited to include more detail on mineralogy and origin; naturally anyone who knows a bit about carbonatites knows they probably don't know much, so I have avoided a great deal of detail on these. I am sure there have been either sulphur lavas or carbonatite lavas erupted in Chile or Peru, as I saw a video of them at university from a visiting American professor, but I can't find a web link for them.
[edit] Classification
Just had a talk from a Prof. who's main research area is Carbonatites. She stated that to be classed as a Carbonatite >50% carbonate material is required to be present. Currently the article states 20% however does not quote a source. I can't find a source to quote the 50% from as I don't have any of my igneous text books with me. ClimberDave 14:27, 15 October 2007 (UTC)
