Outputs (119)

From crustal protoliths to mantle garnet pyroxenites: insights from Os isotopes and highly siderophile elements (2025)
Journal Article
Montanini, A., Luguet, A., van Acken, D., Tribuzio, R., Schuth, S., & Nowell, G. M. (online). From crustal protoliths to mantle garnet pyroxenites: insights from Os isotopes and highly siderophile elements. Geochimica et Cosmochimica Acta, https://doi.org/10.1016/j.gca.2025.05.034

Recycled pyroxenites are a key component of mantle heterogeneity, influencing magma generation and contributing to the radiogenic Os signature of oceanic basalts. However, natural examples of pyroxenites as proxies for crust-derived heterogeneities i... Read More about From crustal protoliths to mantle garnet pyroxenites: insights from Os isotopes and highly siderophile elements.

Written in ‘her’ bones: Cremation and identity in Roman Beirut (2025)
Journal Article
Kalenderian, V., Thompson, T. J., De Looff, D., Surtees, A. P., Nowell, G. M., El Haibe, G., & Seif, A. (2025). Written in ‘her’ bones: Cremation and identity in Roman Beirut. Journal of Archaeological Science, 177, Article 106153. https://doi.org/10.1016/j.jas.2025.106153

At the time of its annexation in the 1st c. BC, cremation was not a customary practice in the Roman province of Syria. This contrasts with the western provinces of the Empire, where burning the body for burial remained the method of... Read More about Written in ‘her’ bones: Cremation and identity in Roman Beirut.

Extreme enriched-mantle (EM) compositions recorded by the Sr-Nd-Hf isotopes of global cratonic lamproites (2025)
Journal Article
Sarkar, S., Dalton, H., Giuliani, A., Phillips, D., Graham Pearson, D., Nowell, G. M., Woodhead, J. D., Hergt, J., Maas, R., Lynton Jaques, A., Chalapathi Rao, N. V., Weiss, Y., & Ghosh, S. (2025). Extreme enriched-mantle (EM) compositions recorded by the Sr-Nd-Hf isotopes of global cratonic lamproites. Geochimica et Cosmochimica Acta, 394, 220-243. https://doi.org/10.1016/j.gca.2025.02.014

Cratonic lamproites are rare ultrapotassic rocks that occur in every continent and were emplaced over the last 2 billion years. Owing to their highly radiogenic Sr and unradiogenic Nd-Hf isotopic compositions along with enrichment in K and incompatib... Read More about Extreme enriched-mantle (EM) compositions recorded by the Sr-Nd-Hf isotopes of global cratonic lamproites.

Gladiators at Roman Colchester: Re-Interpreting the Colchester Vase (2024)
Journal Article
Davis, G. J., Pearce, J., Carroll, E., Moore, J., Nowell, G., & Montgomery, J. (2024). Gladiators at Roman Colchester: Re-Interpreting the Colchester Vase. Britannia: A Journal of Romano-British and Kindred Studies, 55, 3-24. https://doi.org/10.1017/S0068113X24000187

The locally made colour-coated ware vessel known as the Colchester Vase is argued to be a commissioned piece recording a performance in the town. The inscription on the vessel, cut pre-firing, names individual arena performers depicted en barbotine.... Read More about Gladiators at Roman Colchester: Re-Interpreting the Colchester Vase.

Vanadium isotope fractionation during plutonic differentiation and implications for the isotopic composition of the upper continental crust (2024)
Journal Article
Stow, M. A., Prytulak, J., Humphreys, M. C., Hammond, S. J., & Nowell, G. M. (2024). Vanadium isotope fractionation during plutonic differentiation and implications for the isotopic composition of the upper continental crust. Earth and Planetary Science Letters, 643, Article 118825. https://doi.org/10.1016/j.epsl.2024.118825

The analysis of emerging stable isotopic systems in clastic sedimentary rocks is increasingly used to determine the average composition of the upper continental crust through geological time. Any temporal variations can then be linked to global-scale... Read More about Vanadium isotope fractionation during plutonic differentiation and implications for the isotopic composition of the upper continental crust.

Widespread slab melting in modern subduction zones (2023)
Journal Article
Klaver, M., Yogodzinski, G., Albert, C., Camejo-Harry, M., Elburg, M., Hoernle, K., Macpherson, C., Nowell, G., Rushmer, T., Williams, H., & Millet, M.-A. (2024). Widespread slab melting in modern subduction zones. Earth and Planetary Science Letters, 626, Article 118544. https://doi.org/10.1016/j.epsl.2023.118544

It is still a matter of intense debate to what extent partial melting of the subducting slab contributes to arc magmatism in modern subduction zones. In particular, it is difficult to differentiate between silicate melts formed by partial melting of... Read More about Widespread slab melting in modern subduction zones.

Early Eocene Arctic volcanism from carbonate-metasomatized mantle (2023)
Journal Article
Day, J. M. D., Pearson, D. G., Kjarsgaard, B. A., Barker, A. K., Nowell, G. M., Joyce, N., …Harrison, C. (2023). Early Eocene Arctic volcanism from carbonate-metasomatized mantle. Contributions to Mineralogy and Petrology, 178(12), 91. https://doi.org/10.1007/s00410-023-02068-y

Melilitite, nephelinite, basanite, and alkali basalt, along with phonolite differentiates, form the Freemans Cove Complex (FCC) in the south-eastern extremity of Bathurst Island (Nunavut, Canada). New 40Ar/39Ar chronology indicates their emplacement... Read More about Early Eocene Arctic volcanism from carbonate-metasomatized mantle.

Sublithospheric diamond ages and the supercontinent cycle. (2023)
Journal Article
Timmerman, S., Stachel, T., Koornneef, J. M., Smit, K. V., Harlou, R., Nowell, G. M., …Pearson, D. G. (2023). Sublithospheric diamond ages and the supercontinent cycle. Nature, 623, 752-756. https://doi.org/10.1038/s41586-023-06662-9

Subduction related to the ancient supercontinent cycle is poorly constrained by mantle samples. Sublithospheric diamond crystallization records the release of melts from subducting oceanic lithosphere at 300-700 km depths and is especially suited to... Read More about Sublithospheric diamond ages and the supercontinent cycle..

Mobility and connection among the Early Bronze Age Syrian elite (2023)
Journal Article
Stantis, C., Compton, G. S., Kharobi, A., Maaranen, N., Nowell, G. M., Macpherson, C., …Schwartz, G. M. (2023). Mobility and connection among the Early Bronze Age Syrian elite. Journal of Archaeological Science: Reports, 51, Article 104142. https://doi.org/10.1016/j.jasrep.2023.104142

The archaeological site of Umm el-Marra (in the Jabbul plain, western Syria), is a large, fortified urban center. Excavations have uncovered ten tomb structures built during the Early Bronze Age (ca. 2600–2150 BCE) that possibly contain royalty as ev... Read More about Mobility and connection among the Early Bronze Age Syrian elite.

Seeking their fortunes on the Otago goldfields, New Zealand – Constructing isotopic biographies of colonial goldminers (2023)
Journal Article
King, C. L., Buckley, H. R., Petchey, P., Kinaston, R., Millard, A. R., Nowell, G., …Gröcke, D. R. (2023). Seeking their fortunes on the Otago goldfields, New Zealand – Constructing isotopic biographies of colonial goldminers. Journal of Archaeological Science, 157, 105836. https://doi.org/10.1016/j.jas.2023.105836

The nineteenth century New Zealand goldfields were a place where people from across the world came together in search of their fortunes. Written accounts of life on the diggings do exist but are of varying veracity and we therefore have little knowle... Read More about Seeking their fortunes on the Otago goldfields, New Zealand – Constructing isotopic biographies of colonial goldminers.