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Crystal resorption as a driver for mush maturation: an experimental investigation (2024)
Journal Article
Mangler, M. F., Humphreys, M. C. S., Iveson, A. A., Cooper, K. M., Clynne, M. A., Lindoo, A., Brooker, R. A., & Wadsworth, F. B. (2024). Crystal resorption as a driver for mush maturation: an experimental investigation. Journal of Petrology, 65(9), Article egae088. https://doi.org/10.1093/petrology/egae088

The thermal state of a magma reservoir controls its physical and rheological properties: at storage temperatures close to the liquidus, magmas are dominated by melt and therefore mobile, while at lower temperatures, magmas are stored as a rheological... Read More about Crystal resorption as a driver for mush maturation: an experimental investigation.

Abrupt climate change at the MIS 5/4 transition recorded in a speleothem from the Eastern Mediterranean (2024)
Journal Article
Paine, A. R., Baldini, J. U., Ünal-İmer, E., Wadsworth, F. B., Iveson, A. A., Humphreys, M. C., Brown, R. J., Müller, W., & Ottley, C. J. (2024). Abrupt climate change at the MIS 5/4 transition recorded in a speleothem from the Eastern Mediterranean. Quaternary Science Reviews, 339, Article 108841. https://doi.org/10.1016/j.quascirev.2024.108841

The marine isotope stage (MIS) 5a to 4 transition (∼74 ka) was associated with rapid ice sheet expansion, declining moisture availability globally, and significant upheaval of terrestrial ecosystems across the northern hemisphere. Here, we present pr... Read More about Abrupt climate change at the MIS 5/4 transition recorded in a speleothem from the Eastern Mediterranean.

Melt diffusion-moderated crystal growth and its effect on euhedral crystal shapes (2023)
Journal Article
Mangler, M. F., Humphreys, M. C. S., Geifman, E., Iveson, A. A., Wadsworth, F. B., Brooker, R. A., …Hammond, K. (2023). Melt diffusion-moderated crystal growth and its effect on euhedral crystal shapes. Journal of Petrology, 64(8), https://doi.org/10.1093/petrology/egad054

Crystal growth is often described as either interface-controlled or diffusion-controlled. Here, we study crystal growth in an intermediate scenario where reaction rates at the crystal-melt interface are similar to the rates of diffusive transport of... Read More about Melt diffusion-moderated crystal growth and its effect on euhedral crystal shapes.

Variation of plagioclase shape with size in intermediate magmas: a window into incipient plagioclase crystallisation (2022)
Journal Article
Mangler, M. F., Humphreys, M. C., Wadsowrth, F. B., Iveson, A. A., & Higgins, M. D. (2022). Variation of plagioclase shape with size in intermediate magmas: a window into incipient plagioclase crystallisation. Contributions to Mineralogy and Petrology, 177(6), Article 64. https://doi.org/10.1007/s00410-022-01922-9

Volcanic rocks commonly display complex textures acquired both in the magma reservoir and during ascent to the surface. While variations in mineral compositions, sizes and number densities are routinely analysed to reconstruct pre-eruptive magmatic h... Read More about Variation of plagioclase shape with size in intermediate magmas: a window into incipient plagioclase crystallisation.

Deciphering variable mantle sources and hydrous inputs to arc magmas in Kamchatka (2021)
Journal Article
Iveson, A. A., Humphreys, M. C., Savov, I. P., de Hoog, J. C., Turner, S. J., Churikova, T. G., Macpherson, C. G., Mather, T. A., Gordeychik, B. N., Tomanikova, L., Agostini, S., Hammond, K., Pyle, D. M., & Cooper, G. F. (2021). Deciphering variable mantle sources and hydrous inputs to arc magmas in Kamchatka. Earth and Planetary Science Letters, 562, https://doi.org/10.1016/j.epsl.2021.116848

The chemistry of primitive arc rocks provides a window into compositional variability in the mantle wedge, as well as slab-derived inputs to subduction-related magmatism. However, in the long-term cycling of elements between Earth's internal and exte... Read More about Deciphering variable mantle sources and hydrous inputs to arc magmas in Kamchatka.

Chlorine and Felsic Magma Evolution: Modeling the Behavior of an Under-Appreciated Volatile Component (2019)
Journal Article
Webster, J. D., Iveson, A. A., Rowe, M. C., & Webster, P. M. (2020). Chlorine and Felsic Magma Evolution: Modeling the Behavior of an Under-Appreciated Volatile Component. Geochimica et Cosmochimica Acta, 271, 248-288. https://doi.org/10.1016/j.gca.2019.12.002

Research on magmatic Cl has proven useful for understanding melt evolution, degassing, and other igneous processes. Magmatic Cl behavior varies strongly with its solubility in melt, and Cl solubility and its partitioning between melts and fluids vary... Read More about Chlorine and Felsic Magma Evolution: Modeling the Behavior of an Under-Appreciated Volatile Component.