The Mercury Isotopic Composition of Earth's Mantle and the Use of Mass Independently Fractionated Hg to Test for Recycled Crust ...

Mercury isotopes were measured in a suite of well-characterized (for Sr-Nd-Pb-Hf isotopes) ocean island basalts from Tubuai, Pitcairn, Samoa, and Iceland. Lavas from the Afar hotspot were also examined. The data show that ocean island basalts exhibit both mass-dependent fractionation of Hg isotopes....

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Bibliographic Details
Main Authors: Moynier, Frederic, Jackson, Matthew, Zhang, Ke, Cai, Hongming, Halldorsson, Saemundur, Pik, Raphael, Day, James, Chen, Jiubin
Format: Dataset
Language:English
Published: Interdisciplinary Earth Data Alliance (IEDA) 2022
Subjects:
Global
Mercury isotopes, MIF, crustal recycling
Pik
Iceland
Ocean Island
Online Access:https://dx.doi.org/10.26022/ieda/112253
https://ecl.earthchem.org/view.php?id=2253
Description
Summary:Mercury isotopes were measured in a suite of well-characterized (for Sr-Nd-Pb-Hf isotopes) ocean island basalts from Tubuai, Pitcairn, Samoa, and Iceland. Lavas from the Afar hotspot were also examined. The data show that ocean island basalts exhibit both mass-dependent fractionation of Hg isotopes. Critically, the data reveal mass independently fractionated (MIF) Hg isotopes in OIB, from Samoa (negative MIF), Pitcairn (negative MIF), and Tubuai (positive MIF). These data suggest that Hg from surface reservoirs was recycled in the mantle sources of ocean island basalts. ... : Moynier, F., Jackson, M. G., Zhang, K., Cai, H., Halldórsson, S. A., Pik, R., et al. (2021). The mercury isotopic composition of Earth's mantle and the use of mass independently fractionated Hg to test for recycled crust. Geophysical Research Letters, 48, e2021GL094301. https://doi.org/10.1029/2021GL094301 ...

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