The influence of crustal recycling on the molybdenum isotope composition of the Earth's mantle

Remco C. Hin, Kate E.J. Hibbert,Shuo Chen,Matthias Willbold,Morten B. Andersen,Ekaterina S. Kiseeva, Bernard J. Wood,Yaoling Niu,Kenneth W.W. Sims,Tim Elliott

Earth and Planetary Science Letters（2022）

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摘要

•Mo isotopes analysed in mid-ocean ridge basalts and sulphide–basalt experiments.•Significantly sub-chondritic Mo isotope composition in Earth's mantle.•Subducted ocean crust simultaneously lowers its 98Mo/95Mo and increases its Ce/Pb.•Addition of subducted ocean crust explains MORB source characteristics.

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关键词

Mo isotope fractionation,mantle geochemistry

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