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Professor Julie Prytulak's Outputs (7)

A multi-proxy investigation of mantle oxygen fugacity along the Reykjanes Ridge (2019)
Journal Article
Novella, D., Maclennan, J., Shorttle, O., Prytulak, J., & Murton, B. J. (2020). A multi-proxy investigation of mantle oxygen fugacity along the Reykjanes Ridge. Earth and Planetary Science Letters, 531, Article 115973. https://doi.org/10.1016/j.epsl.2019.115973

Mantle oxygen fugacity (fO2) governs the physico-chemical evolution of the Earth, however current estimates from commonly used basalt redox proxies are often in disagreement. In this study we compare three different potential basalt fO2 proxies: Fe3+... Read More about A multi-proxy investigation of mantle oxygen fugacity along the Reykjanes Ridge.

Thallium isotopic composition of phlogopite in kimberlite-hosted MARID and PIC mantle xenoliths (2019)
Journal Article
Fitzpayne, A., Prytulak, J., Giuliani, A., & Hergt, J. (2020). Thallium isotopic composition of phlogopite in kimberlite-hosted MARID and PIC mantle xenoliths. Chemical Geology, 531, https://doi.org/10.1016/j.chemgeo.2019.119347

MARID (Mica-Amphibole-Rutile-Ilmenite-Diopside) and PIC (Phlogopite-Ilmenite-Clinopyroxene) rocks are rare mantle xenoliths entrained by kimberlites. Their high phlogopite modes (15 to ∼100 vol.%) and consequent enrichments in alkali metals and H2O s... Read More about Thallium isotopic composition of phlogopite in kimberlite-hosted MARID and PIC mantle xenoliths.

Cu and Zn isotope fractionation during extreme chemical weathering (2019)
Journal Article
Little, S. H., Munson, S., Prytulak, J., Coles, B. J., Hammond, S. J., & Widdowson, M. (2019). Cu and Zn isotope fractionation during extreme chemical weathering. Geochimica et Cosmochimica Acta, 263, 85-107. https://doi.org/10.1016/j.gca.2019.07.057

Copper and Zn are trace metal micronutrients whose stable isotope systematics are receiving increasing attention as possible paleoenvironmental tracers. However, to realise this potential, their behaviour during chemical weathering must be better con... Read More about Cu and Zn isotope fractionation during extreme chemical weathering.

Radiogenic isotopes document the start of subduction in the western Pacific (2019)
Journal Article
Li, H.-Y., Taylor, R. N., Prytulak, J., Kirchenbaur, M., Shervais, J., Ryan, J. G., Godard, M., Reagan, M. K., & Pearce, J. A. (2019). Radiogenic isotopes document the start of subduction in the western Pacific. Earth and Planetary Science Letters, 518, 197-210. https://doi.org/10.1016/j.epsl.2019.04.041

Subduction initiation is one of the least understood aspects of plate tectonics. In an effort to obtain the first in situ magmatic record of subduction initiation, the International Ocean Discovery Program Expedition 352 drilled at four sites in the... Read More about Radiogenic isotopes document the start of subduction in the western Pacific.

Interplinian effusive activity at Popocatepetl volcano, Mexico: new insights into evolution and dynamics of the plumbing system (2019)
Journal Article
Mangler, M., Prytulak, J., Gisbert, G., Delgado-Granados, H., & Petrone, C. (2019). Interplinian effusive activity at Popocatepetl volcano, Mexico: new insights into evolution and dynamics of the plumbing system. Volcanica, 2(1), 45-72. https://doi.org/10.30909/vol.02.01.4572

Effusive eruptions dominate the eruptive record of many arc volcanoes and may hold crucial information about their plumbing systems, yet they are underrepresented in geochemical and petrological studies. Here, we present whole rock major and trace el... Read More about Interplinian effusive activity at Popocatepetl volcano, Mexico: new insights into evolution and dynamics of the plumbing system.

The vanadium isotopic composition of lunar basalts (2019)
Journal Article
Hopkins, S., Prytulak, J., Barling, J., Russell, S., Coles, B., & Halliday, A. (2019). The vanadium isotopic composition of lunar basalts. Earth and Planetary Science Letters, 511, 12-24. https://doi.org/10.1016/j.epsl.2019.01.008

We present the first high-precision vanadium (V) isotope data for lunar basalts. Terrestrial magmatic rock measurements can display significant V isotopic fractionation (particularly during (Fe, Ti)oxide crystallisation), but the Earth displays heavy... Read More about The vanadium isotopic composition of lunar basalts.