https://glucagonreceptor.com/i....ndex.php/natural-rem
Here, this obvious contradiction is settled by utilizing a compilation regarding the Sr, Nd, and Hf isotope structure of kimberlites-volcanic stones that originate at great level beneath continents. This compilation includes kimberlites because old as 2.06 billion many years and indicates that kimberlites do not derive from a primitive mantle source but test the same geochemically depleted component (where geochemical depletion refers to ancient melt extraction) common to most
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