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(2020) Tracing Mantle Heterogeneity by Potassium Isotope Geochemistry

Teng F-Z, Hu Y, Wang Z-Z & Tian H-C


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05h: Room 2, Saturday 27th June 05:57 - 06:00

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Submitted by Keith Putirka on Wednesday 24th June 21:01
Hi Fang-Zhen - Neat stuff. You likely know that Be isotopes and B/Be ratios are thought to indicate rapid inputs of subducted materials into erupted arc magmas. Could K isotopes lead to an entirely new story about whether sediments or AOC is the source of arc enrichments, since K isotopes seem to separate these so well? Perhaps that key is to measure K isotopes for arc rocks with B-Be-related enrichments? -Keith

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