Talk:Komatiite

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French Guyana komatiitic diamonds

It is worth discussing this first. For instance, the Dachine diamond occurrence is within a talc-schist, which is a metamorphosed ultramafic rock. It is therefore not sufficient to say that because the rock geochemically meets the criteria of a komatiite that it is a komatiite. For instance Magee and Taylor (1999) here argue that the Dachine talc-schist is actually probably a shoshonite occurrence. From my knowledge of the ultramafic dykes of Gympie, Australia, which were also shoshonites, these can look extremely similar to komatiites, especially when alteration strips away their LILE element enrichments in Ba, Rb, Sr, etc. So, I, for one, would like to see a definitive reference provided before we re-include the Dachine rocks as an example of a komatiite source rock for diamonds.

However, if it is a shoshonite, this makes for VERY interesting reading because shoshonites are much more widespread than kimberlites, komatiites or lamprites...so thanks whoever brought this to our attention!

Rolinator 04:19, 28 February 2006 (UTC)[reply]

Superfluid?

The article said komatiites were erupted as Superfluids. I think the author meant Supercritical Fluid, a liquid that has properties of both a gas and a liquid. --Diamonddavej (talk) 21:49, 20 October 2008 (UTC)[reply]

Is there a citation to back this fact up? 89.15.238.246 (talk) 19:09, 2 May 2016 (UTC)[reply]

Copyright?

I did not check the whole article, but the "Morphology and occurrence" paragraph was undoubtedly copied word by word from Earth System Sciences: Felicitation Volumes in Honour of Professor V. K. Verma. Avihu (talk) 16:49, 20 January 2013 (UTC)[reply]

The "Morphology and occurrence" section of this Wikipedia article as of 20 January 2013 was almost identical to the version as of 28 November 2008. The book "Earth System Sciences: Felicitation Volumes in Honour of Professor V. K. Verma" was first published in 2009. Therefore, it seems that the book is probably an uncredited copy of this Wikipedia article. GeoWriter (talk) 15:21, 22 November 2020 (UTC)[reply]

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