2018
DOI: 10.1016/j.chemgeo.2017.11.028
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Nickel isotope fractionation during continental weathering

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Cited by 41 publications
(38 citation statements)
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“…Weathering of ultramafic lithologies drives a decrease in δ 60/58 Ni in the solid residue (Ratié et al, 2015;Spivak-Birndorf et al, 2018), which is consistent with an isotopically heavy riverine flux and seawater composition (Cameron and Vance, 2014). This process will modify whole rock δ 60/58 Ni but should not affect the composition of unaltered olivine crystals, the main host of Ni in peridotites.…”
Section: Light Ni Isotope Compositionssupporting
confidence: 58%
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“…Weathering of ultramafic lithologies drives a decrease in δ 60/58 Ni in the solid residue (Ratié et al, 2015;Spivak-Birndorf et al, 2018), which is consistent with an isotopically heavy riverine flux and seawater composition (Cameron and Vance, 2014). This process will modify whole rock δ 60/58 Ni but should not affect the composition of unaltered olivine crystals, the main host of Ni in peridotites.…”
Section: Light Ni Isotope Compositionssupporting
confidence: 58%
“…There are several important reasons behind our choice of these sample sets. As weathering of peridotites has been shown to drive fractionation of Ni isotopes (e.g., Ratié et al, 2015;Spivak-Birndorf et al, 2018), freshness of the samples was a first prerequisite.…”
Section: Peridotite Samplesmentioning
confidence: 99%
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“…Alternatively, the anticorrelation could also be explained by the binary mixing of two sources (see text in SI) 58,59 . One endmember has a lower δ 60 Ni value and is enriched in HREE [29][30][31]42,43,[67][68][69][70] . The box showing the range for δ 60 Ni value between upper and lower quartiles.…”
Section: Discussionmentioning
confidence: 99%
“… a Boxplots showing the Ni isotopic compositions of different reservoirs 29 31 , 42 , 43 , 67 70 . The box showing the range for δ 60 Ni value between upper and lower quartiles.…”
Section: Discussionmentioning
confidence: 99%