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A primary magmatic source of nitrogen to Earth’s crust (2023)
Journal Article
Boocock, T. J., Mikhail, S., Boyce, A. J., Prytulak, J., Savage, P. S., & Stüeken, E. E. (2023). A primary magmatic source of nitrogen to Earth’s crust. Nature Geoscience, 16, 521-526. https://doi.org/10.1038/s41561-023-01194-3

The igneous portion of Earth’s continental crust represents a long-term sink of terrestrial nitrogen, but the origin of the nitrogen in this reservoir remains ambiguous. Possible sources include magmatic differentiation of mantle-derived melts (that... Read More about A primary magmatic source of nitrogen to Earth’s crust.

Absence of molybdenum isotope fractionation during magmatic differentiation at Hekla volcano, Iceland (2015)
Journal Article
Yang, J., Siebert, C., Barling, J., Savage, P., Liang, Y., & Halliday, A. N. (2015). Absence of molybdenum isotope fractionation during magmatic differentiation at Hekla volcano, Iceland. Geochimica et Cosmochimica Acta, 162, 126-136. https://doi.org/10.1016/j.gca.2015.04.011

This study investigates the behaviour of molybdenum (Mo) isotopes during magmatic differentiation. Molybdenum isotope compositions, as well as concentrations of rare earth elements and a selection of trace elements, have been determined for a well ch... Read More about Absence of molybdenum isotope fractionation during magmatic differentiation at Hekla volcano, Iceland.

Copper isotope evidence for large-scale sulphide fractionation during Earth's differentiation (2015)
Journal Article
Savage, P. S., Moynier, F., Chen, H., Shofner, G., Siebert, J., Badro, J., & Puchtel, I. (2015). Copper isotope evidence for large-scale sulphide fractionation during Earth's differentiation. Geochemical perspectives letters, 1(1), 53-64. https://doi.org/10.7185/geochemlet.1506

The differentiation of Earth into a metallic core and silicate mantle left its signature on the chemical and isotopic composition of the bulk silicate Earth (BSE). This is seen in the depletion of siderophile (metal-loving) relative to lithophile (ro... Read More about Copper isotope evidence for large-scale sulphide fractionation during Earth's differentiation.

Si isotope homogeneity of the solar nebula (2013)
Journal Article
Pringle, E. A., Savage, P. S., Jackson, M. G., Barrat, J., & Moynier, F. (2013). Si isotope homogeneity of the solar nebula. Astrophysical Journal, 779(2), Article 123. https://doi.org/10.1088/0004-637x/779/2/123

The presence or absence of variations in the mass-independent abundances of Si isotopes in bulk meteorites provides important clues concerning the evolution of the early solar system. No Si isotopic anomalies have been found within the level of analy... Read More about Si isotope homogeneity of the solar nebula.

Silicon isotopes in granulite xenoliths: Insights into isotopic fractionation during igneous processes and the composition of the deep continental crust (2013)
Journal Article
Savage, P., Georg, R., Williams, H., & Halliday, A. (2013). Silicon isotopes in granulite xenoliths: Insights into isotopic fractionation during igneous processes and the composition of the deep continental crust. Earth and Planetary Science Letters, 365, 221-231. https://doi.org/10.1016/j.epsl.2013.01.019

The silicon (Si) cycle is of great current interest but the isotopic composition of the continental crust has not been determined. Magmatic differentiation generates liquids with heavier Si and the lower crust, thought to be dominated by cumulates an... Read More about Silicon isotopes in granulite xenoliths: Insights into isotopic fractionation during igneous processes and the composition of the deep continental crust.