Influence Of Rock Crystallisation History Upon Subsequent Lanthanide Mobility During Hydrothermal Alteration Of Basalts

Rare-Earth Element (Ree) Distributions In Individual Eruptive Basaltic Units From Eastern Iceland, Mull And The Mid-Atlantic Ridge Are Presented In Order To Determine The Mobility Of These Elements During Hydrothermal Alteration. The Factors That Cause The Light Ree (La, Ce And Nd) To Be Mobile In Some Cases And Not In Others Are Considered. It Is Postulated That The Main Control On Potential Lanthanide Mobility Is The Igneous Crystallization History Of The Individual Lavas, Because This Affects The Sites Of Concentration, And Hence Availability, Of The Ree During Hydrothermal Alteration. The Subsequent Importance Of The Nature Of The Secondary Minerals Which Form In Determining Which Elements Remain In The System Is Also Discussed. Egi Reference Number Gl03694

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Field Value
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metadata-date 2014-06-17T12:21:04
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